Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 5 de 5
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
2.
Sci Rep ; 10(1): 1001, 2020 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-31969593

RESUMO

While classic models for the emergence of pastoral groups in Inner Asia describe mounted, horse-borne herders sweeping across the Eurasian Steppes during the Early or Middle Bronze Age (ca. 3000-1500 BCE), the actual economic basis of many early pastoral societies in the region is poorly characterized. In this paper, we use collagen mass fingerprinting and ancient DNA analysis of some of the first stratified and directly dated archaeofaunal assemblages from Mongolia's early pastoral cultures to undertake species identifications of this rare and highly fragmented material. Our results provide evidence for livestock-based, herding subsistence in Mongolia during the late 3rd and early 2nd millennia BCE. We observe no evidence for dietary exploitation of horses prior to the late Bronze Age, ca. 1200 BCE - at which point horses come to dominate ritual assemblages, play a key role in pastoral diets, and greatly influence pastoral mobility. In combination with the broader archaeofaunal record of Inner Asia, our analysis supports models for widespread changes in herding ecology linked to the innovation of horseback riding in Central Asia in the final 2nd millennium BCE. Such a framework can explain key broad-scale patterns in the movement of people, ideas, and material culture in Eurasian prehistory.

3.
PLoS One ; 13(4): e0195481, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29694397

RESUMO

High-resolution insight into parasitic infections and diet of past populations in Northern Europe and the Middle East (500 BC- 1700 AD) was obtained by pre-concentration of parasite eggs from ancient latrines and deposits followed by shotgun sequencing of DNA. Complementary profiling of parasite, vertebrate and plant DNA proved highly informative in the study of ancient health, human-animal interactions as well as animal and plant dietary components. Most prominent were finding of soil-borne parasites transmitted directly between humans, but also meat-borne parasites that require consumption of raw or undercooked fish and pork. The detection of parasites for which sheep, horse, dog, pig, and rodents serves as definitive hosts are clear markers of domestic and synanthropic animals living in closer proximity of the respective sites. Finally, the reconstruction of full mitochondrial parasite genomes from whipworm (Ascaris lumbricoides) and roundworm species (Trichuris trichiura and Trichuris muris) and estimates of haplotype frequencies elucidates the genetic diversity and provides insights into epidemiology and parasite biology.


Assuntos
DNA Antigo , Dieta , Fezes/química , Fezes/parasitologia , Banheiros , Agricultura , Animais , Arqueologia/métodos , Biodiversidade , DNA Mitocondrial , DNA de Plantas , Ovos , Europa (Continente) , História Antiga , Humanos , Metagenoma , Oriente Médio , Parasitos/genética , Doenças Parasitárias/epidemiologia , Doenças Parasitárias/história , Filogenia , Análise de Sequência de DNA
4.
Nat Commun ; 7: 13389, 2016 11 08.
Artigo em Inglês | MEDLINE | ID: mdl-27824339

RESUMO

The demographic history of Greenland is characterized by recurrent migrations and extinctions since the first humans arrived 4,500 years ago. Our current understanding of these extinct cultures relies primarily on preserved fossils found in their archaeological deposits, which hold valuable information on past subsistence practices. However, some exploited taxa, though economically important, comprise only a small fraction of these sub-fossil assemblages. Here we reconstruct a comprehensive record of past subsistence economies in Greenland by sequencing ancient DNA from four well-described midden deposits. Our results confirm that the species found in the fossil record, like harp seal and ringed seal, were a vital part of Inuit subsistence, but also add a new dimension with evidence that caribou, walrus and whale species played a more prominent role for the survival of Paleo-Inuit cultures than previously reported. Most notably, we report evidence of bowhead whale exploitation by the Saqqaq culture 4,000 years ago.


Assuntos
Baleia Franca/genética , DNA/genética , Inuíte , Animais , Arqueologia , Biodiversidade , Dano ao DNA , DNA de Plantas/genética , Fósseis , Geografia , Sedimentos Geológicos , Groenlândia , Helmintos/classificação , Humanos , Análise de Sequência de DNA , Fatores de Tempo
5.
Genome Announc ; 3(3)2015 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-26089408

RESUMO

Mycoplasma capricolum subsp. capricolum is a well-known pathogen of small ruminants. A recent human case of septicemia involving this agent raised the question of its potential pathogenicity to humans. We present the first draft genome sequence of a human Mycoplasma capricolum subsp. capricolum isolate.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...