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1.
Nature ; 624(7990): 122-129, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37993721

RESUMEN

Before the colonial period, California harboured more language variation than all of Europe, and linguistic and archaeological analyses have led to many hypotheses to explain this diversity1. We report genome-wide data from 79 ancient individuals from California and 40 ancient individuals from Northern Mexico dating to 7,400-200 years before present (BP). Our analyses document long-term genetic continuity between people living on the Northern Channel Islands of California and the adjacent Santa Barbara mainland coast from 7,400 years BP to modern Chumash groups represented by individuals who lived around 200 years BP. The distinctive genetic lineages that characterize present-day and ancient people from Northwest Mexico increased in frequency in Southern and Central California by 5,200 years BP, providing evidence for northward migrations that are candidates for spreading Uto-Aztecan languages before the dispersal of maize agriculture from Mexico2-4. Individuals from Baja California share more alleles with the earliest individual from Central California in the dataset than with later individuals from Central California, potentially reflecting an earlier linguistic substrate, whose impact on local ancestry was diluted by later migrations from inland regions1,5. After 1,600 years BP, ancient individuals from the Channel Islands lived in communities with effective sizes similar to those in pre-agricultural Caribbean and Patagonia, and smaller than those on the California mainland and in sampled regions of Mexico.


Asunto(s)
Variación Genética , Pueblos Indígenas , Humanos , Agricultura/historia , California/etnología , Región del Caribe/etnología , Etnicidad/genética , Etnicidad/historia , Europa (Continente)/etnología , Variación Genética/genética , Historia del Siglo XV , Historia del Siglo XVI , Historia del Siglo XVII , Historia del Siglo XVIII , Historia del Siglo XIX , Historia Antigua , Historia Medieval , Migración Humana/historia , Pueblos Indígenas/genética , Pueblos Indígenas/historia , Islas , Lenguaje/historia , México/etnología , Zea mays , Genoma Humano/genética , Genómica , Alelos
2.
Mol Genet Genomics ; 296(4): 783-797, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34037863

RESUMEN

East Asia, geographically extending to the Pamir Plateau in the west, to the Himalayan Mountains in the southwest, to Lake Baikal in the north and to the South China Sea in the south, harbors a variety of people, cultures, and languages. To reconstruct the natural history of East Asians is a mission of multiple disciplines, including genetics, archaeology, linguistics, and ethnology. Geneticists confirm the recent African origin of modern East Asians. Anatomically modern humans arose in Africa and immigrated into East Asia via a southern route approximately 50,000 years ago. Following the end of the Last Glacial Maximum approximately 12,000 years ago, rice and millet were domesticated in the south and north of East Asia, respectively, which allowed human populations to expand and linguistic families and ethnic groups to develop. These Neolithic populations produced a strong relation between the present genetic structures and linguistic families. The expansion of the Hongshan people from northeastern China relocated most of the ethnic populations on a large scale approximately 5300 years ago. Most of the ethnic groups migrated to remote regions, producing genetic structure differences between the edge and center of East Asia. In central China, pronounced population admixture occurred and accelerated over time, which subsequently formed the Han Chinese population and eventually the Chinese civilization. Population migration between the north and the south throughout history has left a smooth gradient in north-south changes in genetic structure. Observation of the process of shaping the genetic structure of East Asians may help in understanding the global natural history of modern humans.


Asunto(s)
Cromosomas Humanos Y/genética , Civilización/historia , Etnicidad/historia , Antropología Cultural , Pueblo Asiatico/clasificación , Pueblo Asiatico/etnología , Pueblo Asiatico/genética , China/etnología , Etnicidad/clasificación , Etnicidad/genética , Asia Oriental/etnología , Flujo Génico , Genética de Población/historia , Historia Antigua , Humanos , Lingüística/clasificación , Lingüística/historia , Filogenia
3.
J Hum Genet ; 66(3): 287-296, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32994538

RESUMEN

Ancient DNA studies provide genomic information about the origins, population structures, and physical characteristics of ancient humans that cannot be solely examined by archeological studies. The DNAs extracted from ancient human bones, teeth, or tissues are often contaminated with coexisting bacterial and viral genomes that contain DNA from ancient microbes infecting those of ancient humans. Information on ancient viral genomes is useful in making inferences about the viral evolution. Here, we have utilized metagenomic sequencing data from the dental pulp of five Jomon individuals, who lived on the Japanese archipelago more than 3000 years ago; this is to detect ancient viral genomes. We conducted de novo assembly of the non-human reads where we have obtained 277,387 contigs that were longer than 1000 bp. These contigs were subjected to homology searches against a collection of modern viral genome sequences. We were able to detect eleven putative ancient viral genomes. Among them, we reconstructed the complete sequence of the Siphovirus contig89 (CT89) viral genome. The Jomon CT89-like sequence was determined to contain 59 open reading frames, among which five genes known to encode phage proteins were under strong purifying selection. The host of CT89 was predicted to be Schaalia meyeri, a bacterium residing in the human oral cavity. Finally, the CT89 phylogenetic tree showed two clusters, from both of which the Jomon sequence was separated. Our results suggest that metagenomic information from the dental pulp of the Jomon people is essential in retrieving ancient viral genomes used to examine their evolution.


Asunto(s)
Pueblo Asiatico , ADN Viral/aislamiento & purificación , Pulpa Dental/virología , Etnicidad , Fósiles/virología , Genoma Viral , Metagenoma , Siphoviridae/aislamiento & purificación , Actinomycetaceae/virología , Pueblo Asiatico/historia , Repeticiones Palindrómicas Cortas Agrupadas y Regularmente Espaciadas , Mapeo Contig , Pulpa Dental/química , Etnicidad/historia , Femenino , Fósiles/historia , Fósiles/microbiología , Historia Antigua , Humanos , Japón , Funciones de Verosimilitud , Masculino , Anotación de Secuencia Molecular , Boca/microbiología , Boca/virología , Sistemas de Lectura Abierta/genética , Filogenia , Alineación de Secuencia , Homología de Secuencia de Ácido Nucleico , Siphoviridae/genética , Secuenciación Completa del Genoma
4.
Sci Rep ; 10(1): 14464, 2020 09 02.
Artículo en Inglés | MEDLINE | ID: mdl-32879340

RESUMEN

The Roma population is a European ethnic minority characterized by recent and multiple dispersals and founder effects. After their origin in South Asia around 1,500 years ago, they migrated West. In Europe, they diverged into ethnolinguistically distinct migrant groups that spread across the continent. Previous genetic studies based on genome-wide data and uniparental markers detected Roma founder events and West-Eurasian gene flow. However, to the best of our knowledge, it has not been assessed whether these demographic processes have equally affected both sexes in the population. The present study uses the largest and most comprehensive dataset of complete mitochondrial and Y chromosome Roma sequences to unravel the sex-biased patterns that have shaped their genetic history. The results show that the Roma maternal genetic pool carries a higher lineage diversity from South Asia, as opposed to a single paternal South Asian lineage. Nonetheless, the European gene flow events mainly occurred through the maternal lineages; however, a signal of this gene flow is also traceable in the paternal lineages. We also detect a higher female migration rate among European Roma groups. Altogether, these results suggest that sociocultural factors influenced the emergence of sex-biased genetic patterns at global and local scales in the Roma population through time.


Asunto(s)
Etnicidad/genética , Genética de Población , Migración Humana , Romaní/genética , Pueblo Asiatico/genética , Cromosomas Humanos Y/genética , ADN Mitocondrial/genética , Etnicidad/historia , Femenino , Efecto Fundador , Flujo Génico/genética , Variación Genética/genética , Haplotipos/genética , Historia Antigua , Humanos , Masculino , Caracteres Sexuales , Población Blanca/genética
5.
Sci Rep ; 10(1): 9729, 2020 06 16.
Artículo en Inglés | MEDLINE | ID: mdl-32546820

RESUMEN

Effective population size reflects the history of population growth, contraction, and structuring. When the effect of structuring is negligible, the inferred trajectory of the effective population size can be informative about the key events in the history of a population. We used the IBDNe and DoRIS approaches, which exploit the data on IBD sharing between genomes, to reconstruct the recent effective population size in two population datasets of Russians from Eastern European plain: (1) ethnic Russians sampled from the westernmost part of Russia; (2) ethnic Russians, Bashkirs, and Tatars sampled from the Volga-Ural region. In this way, we examined changes in effective population size among ethnic Russians that reside in their historical area at the West of the plain, and that expanded eastward to come into contact with the indigenous peoples at the East of the plain. We compared the inferred demographic trajectories of each ethnic group to written historical data related to demographic events such as migration, war, colonization, famine, establishment, and collapse of empires. According to IBDNe estimations, 200 generations (~6000 years) ago, the effective size of the ancestral populations of Russians, Bashkirs, and Tatars hovered around 3,000, 30,000, and 8,000 respectively. Then, the ethnic Russians exponentially grew with increasing rates for the last 115 generations and become the largest ethnic group of the plain. Russians do not show any drop in effective population size after the key historical conflicts, including the Mongol invasion. The only exception is a moderate drop in the 17th century, which is well known in Russian history as The Smuta. Our analyses suggest a more eventful recent population history for the two small ethnic groups that came into contact with ethnic Russians in the Volga-Ural region. We found that the effective population size of Bashkirs and Tatars started to decrease during the time of the Mongol invasion. Interestingly, there is an even stronger drop in the effective population size that coincides with the expansion of Russians to the East. Thus, 15-20 generations ago, i.e. in the 16-18th centuries in the trajectories of Bashkirs and Tatars, we observe the bottlenecks of four and twenty thousand, respectively. Our results on the recent effective population size correlate with the key events in the history of populations of the Eastern European plain and have importance for designing biomedical studies in the region.


Asunto(s)
Etnicidad/genética , Genética de Población/historia , Densidad de Población , Bases de Datos Genéticas , Etnicidad/historia , Europa Oriental , Genética de Población/métodos , Historia del Siglo XV , Historia del Siglo XVI , Historia del Siglo XVII , Historia del Siglo XVIII , Historia del Siglo XIX , Historia del Siglo XX , Historia Antigua , Historia Medieval , Humanos , Polimorfismo Genético/genética , Federación de Rusia
6.
J Hum Genet ; 65(10): 875-887, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32483274

RESUMEN

New Guineans represent one of the oldest locally continuous populations outside Africa, harboring among the greatest linguistic and genetic diversity on the planet. Archeological and genetic evidence suggest that their ancestors reached Sahul (present day New Guinea and Australia) by at least 55,000 years ago (kya). However, little is known about this early settlement phase or subsequent dispersal and population structuring over the subsequent period of time. Here we report 379 complete Papuan mitochondrial genomes from across Papua New Guinea, which allow us to reconstruct the phylogenetic and phylogeographic history of northern Sahul. Our results support the arrival of two groups of settlers in Sahul within the same broad time window (50-65 kya), each carrying a different set of maternal lineages and settling Northern and Southern Sahul separately. Strong geographic structure in northern Sahul remains visible today, indicating limited dispersal over time despite major climatic, cultural, and historical changes. However, following a period of isolation lasting nearly 20 ky after initial settlement, environmental changes postdating the Last Glacial Maximum stimulated diversification of mtDNA lineages and greater interactions within and beyond Northern Sahul, to Southern Sahul, Wallacea and beyond. Later, in the Holocene, populations from New Guinea, in contrast to those of Australia, participated in early interactions with incoming Asian populations from Island Southeast Asia and continuing into Oceania.


Asunto(s)
Etnicidad/genética , Migración Humana/historia , Adulto , Asia Sudoriental , Australia , Etnicidad/historia , Femenino , Genoma Mitocondrial , Fenómenos Geológicos , Haplotipos/genética , Historia Antigua , Humanos , Funciones de Verosimilitud , Masculino , Nueva Guinea , Papúa Nueva Guinea , Filogenia , Filogeografía , Tasmania
7.
Cell ; 181(5): 1146-1157.e11, 2020 05 28.
Artículo en Inglés | MEDLINE | ID: mdl-32470400

RESUMEN

We report genome-wide DNA data for 73 individuals from five archaeological sites across the Bronze and Iron Ages Southern Levant. These individuals, who share the "Canaanite" material culture, can be modeled as descending from two sources: (1) earlier local Neolithic populations and (2) populations related to the Chalcolithic Zagros or the Bronze Age Caucasus. The non-local contribution increased over time, as evinced by three outliers who can be modeled as descendants of recent migrants. We show evidence that different "Canaanite" groups genetically resemble each other more than other populations. We find that Levant-related modern populations typically have substantial ancestry coming from populations related to the Chalcolithic Zagros and the Bronze Age Southern Levant. These groups also harbor ancestry from sources we cannot fully model with the available data, highlighting the critical role of post-Bronze-Age migrations into the region over the past 3,000 years.


Asunto(s)
ADN Antiguo/análisis , Etnicidad/genética , Flujo Génico/genética , Arqueología/métodos , ADN Mitocondrial/genética , Etnicidad/historia , Flujo Génico/fisiología , Variación Genética/genética , Genética de Población/métodos , Genoma Humano/genética , Genómica/métodos , Haplotipos , Historia Antigua , Migración Humana/historia , Humanos , Región Mediterránea , Medio Oriente , Análisis de Secuencia de ADN
8.
Cell ; 181(5): 1158-1175.e28, 2020 05 28.
Artículo en Inglés | MEDLINE | ID: mdl-32470401

RESUMEN

Here, we report genome-wide data analyses from 110 ancient Near Eastern individuals spanning the Late Neolithic to Late Bronze Age, a period characterized by intense interregional interactions for the Near East. We find that 6th millennium BCE populations of North/Central Anatolia and the Southern Caucasus shared mixed ancestry on a genetic cline that formed during the Neolithic between Western Anatolia and regions in today's Southern Caucasus/Zagros. During the Late Chalcolithic and/or the Early Bronze Age, more than half of the Northern Levantine gene pool was replaced, while in the rest of Anatolia and the Southern Caucasus, we document genetic continuity with only transient gene flow. Additionally, we reveal a genetically distinct individual within the Late Bronze Age Northern Levant. Overall, our study uncovers multiple scales of population dynamics through time, from extensive admixture during the Neolithic period to long-distance mobility within the globalized societies of the Late Bronze Age. VIDEO ABSTRACT.


Asunto(s)
ADN Antiguo/análisis , Etnicidad/genética , Flujo Génico/genética , Arqueología/métodos , ADN Mitocondrial/genética , Etnicidad/historia , Flujo Génico/fisiología , Variación Genética/genética , Genética de Población/métodos , Genoma Humano/genética , Genómica/métodos , Haplotipos , Historia Antigua , Migración Humana/historia , Humanos , Región Mediterránea , Medio Oriente , Análisis de Secuencia de ADN
9.
Hist Sci ; 58(1): 51-75, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30966814

RESUMEN

This essay examines the relationship between slavery and plant knowledge for cultivational activities and medicinal purposes on Isle de France (Mauritius) in the second half of the eighteenth century. It builds on recent scholarship to argue for the significance of slaves in the acquisition of plant material and related knowledge in pharmaceutical, acclimatization, and private gardens on the French colonial island. I highlight the degree to which French colonial officials relied on slaves' ethnobotanical knowledge but neglected to include such information in their published works. Rather than seeking to explore the status of such knowledge within European frameworks of natural history as an endpoint of knowledge production, this essay calls upon us to think about the plant knowledge that slaves possessed for its practical implementations in the local island context. Both female and male slaves' plant-based knowledge enriched - even initiated - practices of cultivation and preparation techniques of plants for nourishment and medicinal uses. Here, cultivational knowledge and skills determined a slave's hierarchical rank. As the case of the slave gardener Rama and his family reveals, plant knowledge sometimes offered slaves opportunities for social mobility and, even though on extremely rare occasions, enabled them to become legally free.


Asunto(s)
Colonialismo/historia , Personas Esclavizadas/historia , Etnobotánica , Jardines/historia , Medicina de Hierbas/historia , Plantas Medicinales , África/etnología , Asia/etnología , Esclavización/historia , Etnicidad/historia , Femenino , Francia , Historia del Siglo XVIII , Humanos , Masculino , Mauricio
10.
Mitochondrion ; 47: 82-93, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31103559

RESUMEN

Despite the unique geographic, ethnic, social and cultural features of Kohistan in Pakistan, the origin and descent of Kohistanis remain still obscure. In an effort to address questions concerning the genetic structure, origin and genetic affinities of Kohistanis, we herein applied an ethnogenetic approach consisting on mitochondrial DNA (mtDNA) analysis and dental morphology analysis. We sequenced HVS1 of mtDNA, observed 14 haplotypes and assigned a total of 9 haplogroups belonging to macrolineages M (17%) and N (83%). Genetic diversity estimates in Kohistanis (Hd = 0.910 ±â€¯0.014; Pi = 0.019 ±â€¯0.001; θw = 0.019 ±â€¯0.006) were similar to that of previous studies in other Pakistani populations. Overall, the analyses of dental morphology and mtDNA profile of Kohistanis resulted in similar findings. All the analyses indicate that Kohistanis share affinities to populations from Europe, Near East, Central Asia and South Asia. The Kohistani HVS1 haplotype 2 shares 100% identity to HVS1 haplotypes across the Europe. These results in light of recent insights into ancient genomics lead us to conclude that ancestry from Eurasian Steppe genetically linked Kohistanis to all these populations in the Bronze Age. This is consistent with linguistic evidence and also with the Indo-Aryan migration model for the peopling of South Asia.


Asunto(s)
ADN Mitocondrial/genética , Etnicidad/genética , Filogenia , Población Blanca/genética , Adolescente , Adulto , Etnicidad/historia , Europa (Continente) , Femenino , Historia Antigua , Humanos , Masculino , Pakistán/etnología , Población Blanca/historia , Adulto Joven
11.
Proc Natl Acad Sci U S A ; 115(26): 6774-6779, 2018 06 26.
Artículo en Inglés | MEDLINE | ID: mdl-29895688

RESUMEN

The extent to which prehistoric migrations of farmers influenced the genetic pool of western North Africans remains unclear. Archaeological evidence suggests that the Neolithization process may have happened through the adoption of innovations by local Epipaleolithic communities or by demic diffusion from the Eastern Mediterranean shores or Iberia. Here, we present an analysis of individuals' genome sequences from Early and Late Neolithic sites in Morocco and from Early Neolithic individuals from southern Iberia. We show that Early Neolithic Moroccans (∼5,000 BCE) are similar to Later Stone Age individuals from the same region and possess an endemic element retained in present-day Maghrebi populations, confirming a long-term genetic continuity in the region. This scenario is consistent with Early Neolithic traditions in North Africa deriving from Epipaleolithic communities that adopted certain agricultural techniques from neighboring populations. Among Eurasian ancient populations, Early Neolithic Moroccans are distantly related to Levantine Natufian hunter-gatherers (∼9,000 BCE) and Pre-Pottery Neolithic farmers (∼6,500 BCE). Late Neolithic (∼3,000 BCE) Moroccans, in contrast, share an Iberian component, supporting theories of trans-Gibraltar gene flow and indicating that Neolithization of North Africa involved both the movement of ideas and people. Lastly, the southern Iberian Early Neolithic samples share the same genetic composition as the Cardial Mediterranean Neolithic culture that reached Iberia ∼5,500 BCE. The cultural and genetic similarities between Iberian and North African Neolithic traditions further reinforce the model of an Iberian migration into the Maghreb.


Asunto(s)
Etnicidad/genética , Genoma Humano , Migración Humana/historia , África del Norte , Agricultura/historia , Cromosomas Humanos Y/genética , ADN Mitocondrial/genética , Etnicidad/historia , Europa (Continente) , Flujo Génico , Biblioteca de Genes , Genética de Población , Historia Antigua , Humanos , Medio Oriente , Marruecos , Análisis de Secuencia de ADN , España/etnología
12.
PLoS One ; 13(1): e0190169, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29320542

RESUMEN

The Phoenicians emerged in the Northern Levant around 1800 BCE and by the 9th century BCE had spread their culture across the Mediterranean Basin, establishing trading posts, and settlements in various European Mediterranean and North African locations. Despite their widespread influence, what is known of the Phoenicians comes from what was written about them by the Greeks and Egyptians. In this study, we investigate the extent of Phoenician integration with the Sardinian communities they settled. We present 14 new ancient mitogenome sequences from pre-Phoenician (~1800 BCE) and Phoenician (~700-400 BCE) samples from Lebanon (n = 4) and Sardinia (n = 10) and compare these with 87 new complete mitogenomes from modern Lebanese and 21 recently published pre-Phoenician ancient mitogenomes from Sardinia to investigate the population dynamics of the Phoenician (Punic) site of Monte Sirai, in southern Sardinia. Our results indicate evidence of continuity of some lineages from pre-Phoenician populations suggesting integration of indigenous Sardinians in the Monte Sirai Phoenician community. We also find evidence of the arrival of new, unique mitochondrial lineages, indicating the movement of women from sites in the Near East or North Africa to Sardinia, but also possibly from non-Mediterranean populations and the likely movement of women from Europe to Phoenician sites in Lebanon. Combined, this evidence suggests female mobility and genetic diversity in Phoenician communities, reflecting the inclusive and multicultural nature of Phoenician society.


Asunto(s)
Demografía , Etnicidad/historia , Genoma Mitocondrial , Migración Humana/historia , Mujeres , Adolescente , Adulto , Niño , Cultura , ADN Mitocondrial/análisis , ADN Mitocondrial/aislamiento & purificación , Etnicidad/genética , Femenino , Variación Genética , Haplotipos , Historia Antigua , Humanos , Italia , Líbano/etnología , Región Mediterránea , Filogenia , Dinámica Poblacional , Diente
13.
PLoS Genet ; 14(1): e1007152, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-29370172

RESUMEN

Previous studies of the genetic landscape of Ireland have suggested homogeneity, with population substructure undetectable using single-marker methods. Here we have harnessed the haplotype-based method fineSTRUCTURE in an Irish genome-wide SNP dataset, identifying 23 discrete genetic clusters which segregate with geographical provenance. Cluster diversity is pronounced in the west of Ireland but reduced in the east where older structure has been eroded by historical migrations. Accordingly, when populations from the neighbouring island of Britain are included, a west-east cline of Celtic-British ancestry is revealed along with a particularly striking correlation between haplotypes and geography across both islands. A strong relationship is revealed between subsets of Northern Irish and Scottish populations, where discordant genetic and geographic affinities reflect major migrations in recent centuries. Additionally, Irish genetic proximity of all Scottish samples likely reflects older strata of communication across the narrowest inter-island crossing. Using GLOBETROTTER we detected Irish admixture signals from Britain and Europe and estimated dates for events consistent with the historical migrations of the Norse-Vikings, the Anglo-Normans and the British Plantations. The influence of the former is greater than previously estimated from Y chromosome haplotypes. In all, we paint a new picture of the genetic landscape of Ireland, revealing structure which should be considered in the design of studies examining rare genetic variation and its association with traits.


Asunto(s)
Variación Genética , Migración Humana , Población Blanca/genética , Etnicidad/genética , Etnicidad/historia , Genética de Población , Estudio de Asociación del Genoma Completo , Genómica , Historia Antigua , Migración Humana/historia , Humanos , Irlanda , Islas/etnología , Dinámica Poblacional , Migrantes , Reino Unido , Población Blanca/historia
14.
Nature ; 548(7666): 214-218, 2017 08 10.
Artículo en Inglés | MEDLINE | ID: mdl-28783727

RESUMEN

The origins of the Bronze Age Minoan and Mycenaean cultures have puzzled archaeologists for more than a century. We have assembled genome-wide data from 19 ancient individuals, including Minoans from Crete, Mycenaeans from mainland Greece, and their eastern neighbours from southwestern Anatolia. Here we show that Minoans and Mycenaeans were genetically similar, having at least three-quarters of their ancestry from the first Neolithic farmers of western Anatolia and the Aegean, and most of the remainder from ancient populations related to those of the Caucasus and Iran. However, the Mycenaeans differed from Minoans in deriving additional ancestry from an ultimate source related to the hunter-gatherers of eastern Europe and Siberia, introduced via a proximal source related to the inhabitants of either the Eurasian steppe or Armenia. Modern Greeks resemble the Mycenaeans, but with some additional dilution of the Early Neolithic ancestry. Our results support the idea of continuity but not isolation in the history of populations of the Aegean, before and after the time of its earliest civilizations.


Asunto(s)
Etnicidad/genética , Filogenia , Cromosomas Humanos X/genética , Etnicidad/historia , Femenino , Grecia , Historia Antigua , Migración Humana/historia , Humanos , Masculino , Polimorfismo de Nucleótido Simple/genética , Análisis de Componente Principal
15.
PLoS One ; 12(2): e0171064, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28152046

RESUMEN

An intentionally modified head is a visually distinctive sign of group identity. In the Migration Period of Europe (4th- 7th century AD) the practice of intentional cranial modification was common among several nomadic groups, but was strongly associated with the Huns from the Carpathian Basin in Hungary, where modified crania are abundant in archaeological sites. The frequency of modified crania increased substantially in the Mtskheta region of Georgia in this time period, but there are no records that Huns settled here. We compare the Migration Period modified skulls from Georgia with those from Hungary to test the hypothesis that the Huns were responsible for cranial modification in Georgia. We use extended eigenshape analysis to quantify cranial outlines, enabling a discriminant analysis to assess group separation and identify morphological differences. Twenty-one intentionally modified skulls from Georgia are compared with sixteen from Hungary, using nineteen unmodified crania from a modern population as a comparative baseline. Results indicate that modified crania can be differentiated from modern unmodified crania with 100% accuracy. The Hungarian and Georgian crania show some overlap in shape, but can be classified with 81% accuracy. Shape gradations along the main eigenvectors indicate that the Hungarian crania show little variation in cranial shape, in accordance with a two-bandage binding technique, whereas the Georgian crania had a wider range of variation, fitting with a diversity of binding styles. As modification style is a strong signifier of social identity, our results indicate weak Hunnic influence on cranial modification in Georgia and are equivocal about the presence of Huns in Georgia. We suggest instead that other nomadic groups such as Alans and Sarmatians living in this region were responsible for modified crania in Georgia.


Asunto(s)
Modificación del Cuerpo no Terapéutica/historia , Etnicidad/historia , Fósiles/anatomía & histología , Cráneo/anatomía & histología , Emigración e Inmigración/historia , Femenino , Fósiles/diagnóstico por imagen , Georgia , Georgia (República) , Historia del Siglo XIX , Historia del Siglo XX , Historia Antigua , Humanos , Hungría , Imagenología Tridimensional , Masculino , Modelos Anatómicos , Cráneo/diagnóstico por imagen
16.
Neurocirugia (Astur) ; 28(1): 28-40, 2017.
Artículo en Español | MEDLINE | ID: mdl-27208912

RESUMEN

A review is presented on cranial trepanations performed by primitive cultures. The scientific interest in this topic began after the discovery in 1965 by Ephraim G. Squier of a pre-Columbian trepanated skull, and studied by Paul Broca in Paris. Pseudotrepanation and other types of cranial manipulation are reviewed. The techniques, technology, and instruments for every type of trepanation are well known. There are a surprisingly high percentage of cases showing signs of post-trepanation survival. Indications for trepanation are speculative, perhaps magic. Although trepanation in primitive cultures is widespread around the world, and throughout time, the main fields of interest are the Neolithic Period in Europe, the pre-Columbian Period in Andean South America, and some contemporaneous Pacific and African tribes. This particular trepanation procedure has no relationship with modern Neurosurgery, or with trepanations with therapeutic purposes performed since the Greco-Roman period in Europe, and afterwards around the world.


Asunto(s)
Medicina Tradicional/historia , Trepanación/historia , África , Antropología Cultural , Remodelación Ósea , Conducta Ceremonial , Traumatismos Craneocerebrales/cirugía , Etnicidad/historia , Europa (Continente) , Fósiles , Cefalea/cirugía , Historia del Siglo XVI , Historia del Siglo XIX , Historia del Siglo XX , Historia del Siglo XXI , Historia Antigua , Humanos , Imagenología Tridimensional , Oceanía , Osteogénesis , Perú , Cráneo/diagnóstico por imagen , Cráneo/patología , Cráneo/cirugía , Tomografía Computarizada por Rayos X , Trepanación/instrumentación , Trepanación/métodos , Trepanación/mortalidad , Cicatrización de Heridas
17.
Homo ; 67(5): 369-383, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27659540

RESUMEN

In this paper, population continuity and discontinuity in northern China are explored using craniometric analyses from two archaeological sites, Longxian (Warring States) and Qi Li Cun (Han Dynasty). Neither population has been previously studied. Artefactual evidence shows the individuals from Qi Li Cun were Xianbei, descendants from Mongolia. Longxian is from further south in the central plains at an earlier time, thus, we expect to observe variability between these groups. In total, 24 cranial measurements were obtained on 66 crania from these sites. Howells's cranial measurements on Anyang (42 crania) and Hainan (83 crania) Chinese samples were included for comparative purposes. Less variability is expected between Longxian and Howells's Chinese data due to geographic and temporal similarity. With closer geographic and temporal affinity with Anyang, the expectation is for Longxian and Anyang to be similar. Few statistical differences exist between Longxian and Qi Li Cun; this was supported by the similarity found through principal components analysis (PCA). Regardless of sex, canonical discriminant analysis shows clustering of Longxian and Qi Li Cun separate from those of Anyang and Hainan. Their similarity indicates the people from Longxian and Qi Li Cun likely share Mongolian ancestry. Our results, supported by other studies, suggest that despite temporal differences, Mongolians living in China during the Warring States and Han dynasty retained their cultural and genetic Mongolian identity. These data add valuable bioarchaeological information regarding the peopling of northern China during a crucial period of cultural and political change in the Early Bronze Age and Iron Age.


Asunto(s)
Fósiles/anatomía & histología , Cráneo/anatomía & histología , Arqueología , Pueblo Asiatico/genética , Pueblo Asiatico/historia , Cefalometría , China , Análisis Discriminante , Etnicidad/genética , Etnicidad/historia , Femenino , Fósiles/historia , Historia Antigua , Humanos , Masculino , Mongolia/etnología , Dinámica Poblacional/historia
18.
PLoS One ; 11(4): e0154809, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27128032

RESUMEN

Recent advances in the use of summed probability distribution (SPD) of calibrated 14C dates have opened new possibilities for studying prehistoric demography. The degree of correlation between climate change and population dynamics can now be accurately quantified, and divergences in the demographic history of distinct geographic areas can be statistically assessed. Here we contribute to this research agenda by reconstructing the prehistoric population change of Jomon hunter-gatherers between 7,000 and 3,000 cal BP. We collected 1,433 14C dates from three different regions in Eastern Japan (Kanto, Aomori and Hokkaido) and established that the observed fluctuations in the SPDs were statistically significant. We also introduced a new non-parametric permutation test for comparing multiple sets of SPDs that highlights point of divergences in the population history of different geographic regions. Our analyses indicate a general rise-and-fall pattern shared by the three regions but also some key regional differences during the 6th millennium cal BP. The results confirm some of the patterns suggested by previous archaeological studies based on house and site counts but offer statistical significance and an absolute chronological framework that will enable future studies aiming to establish potential correlation with climatic changes.


Asunto(s)
Cambio Climático/historia , Demografía/métodos , Dinámica Poblacional/historia , Datación Radiométrica/métodos , Arqueología , Radioisótopos de Carbono/análisis , Demografía/estadística & datos numéricos , Etnicidad/historia , Historia Antigua , Humanos , Japón , Dinámica Poblacional/estadística & datos numéricos , Probabilidad , Datación Radiométrica/estadística & datos numéricos , Estadísticas no Paramétricas
19.
Proc Natl Acad Sci U S A ; 112(14): 4268-73, 2015 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-25831523

RESUMEN

Our archaeological investigations at Ceibal, a lowland Maya site located in the Pasión region, documented that a formal ceremonial complex was built around 950 B.C. at the onset of the Middle Preclassic period, when ceramics began to be used in the Maya lowlands. Our refined chronology allowed us to trace the subsequent social changes in a resolution that had not been possible before. Many residents of Ceibal appear to have remained relatively mobile during the following centuries, living in ephemeral post-in-ground structures and frequently changing their residential localities. In other parts of the Pasión region, there may have existed more mobile populations who maintained the traditional lifestyle of the preceramic period. Although the emerging elite of Ceibal began to live in a substantial residential complex by 700 B.C., advanced sedentism with durable residences rebuilt in the same locations and burials placed under house floors was not adopted in most residential areas until 500 B.C., and did not become common until 300 B.C. or the Late Preclassic period. During the Middle Preclassic period, substantial formal ceremonial complexes appear to have been built only at a small number of important communities in the Maya lowlands, and groups with different levels of sedentism probably gathered for their constructions and for public rituals held in them. These collaborative activities likely played a central role in socially integrating diverse groups with different lifestyles and, eventually, in developing fully established sedentary communities.


Asunto(s)
Civilización/historia , Conducta Social , Arqueología , Arquitectura , América Central , Conducta Ceremonial , Ambiente , Etnicidad/historia , Geografía , Guatemala , Historia Antigua , Humanos , Indígenas Centroamericanos/historia , Características de la Residencia
20.
PLoS One ; 10(2): e0118316, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25714361

RESUMEN

For a long time, anthropological and genetic research on the Neolithic revolution in Europe was mainly concentrated on the mechanism of agricultural dispersal over different parts of the continent. Recently, attention has shifted towards population processes that occurred after the arrival of the first farmers, transforming the genetically very distinctive early Neolithic Linear Pottery Culture (LBK) and Mesolithic forager populations into present-day Central Europeans. The latest studies indicate that significant changes in this respect took place within the post-Linear Pottery cultures of the Early and Middle Neolithic which were a bridge between the allochthonous LBK and the first indigenous Neolithic culture of north-central Europe--the Funnel Beaker culture (TRB). The paper presents data on mtDNA haplotypes of a Middle Neolithic population dated to 4700/4600-4100/4000 BC belonging to the Brzesc Kujawski Group of the Lengyel culture (BKG) from the Kuyavia region in north-central Poland. BKG communities constituted the border of the "Danubian World" in this part of Europe for approx. seven centuries, neighboring foragers of the North European Plain and the southern Baltic basin. MtDNA haplogroups were determined in 11 individuals, and four mtDNA macrohaplogroups were found (H, U5, T, and HV0). The overall haplogroup pattern did not deviate from other post-Linear Pottery populations from central Europe, although a complete lack of N1a and the presence of U5a are noteworthy. Of greatest importance is the observed link between the BKG and the TRB horizon, confirmed by an independent analysis of the craniometric variation of Mesolithic and Neolithic populations inhabiting central Europe. Estimated phylogenetic pattern suggests significant contribution of the post-Linear BKG communities to the origin of the subsequent Middle Neolithic cultures, such as the TRB.


Asunto(s)
Etnicidad/genética , Genética de Población , Cronología como Asunto , ADN Mitocondrial , Etnicidad/historia , Evolución Molecular , Frecuencia de los Genes , Genotipo , Geografía , Haplotipos , Historia Antigua , Humanos , Polonia/etnología , Análisis de Secuencia de ADN
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