Phylogenetic analyses of 41 Y-STRs and machine learning-based haplogroup prediction in the Qingdao Han population from Shandong province, Eastern China.
Ann Hum Biol
; 50(1): 35-41, 2023 Feb.
Article
em En
| MEDLINE
| ID: mdl-36636009
ABSTRACT
BACKGROUND:
Known for its rich history and culture, Qingdao is a typical symbol of Chinese maritime culture. Its unique genetic landscape has aroused interest among geneticists and forensic scientists. However, the genetic landscape of Qingdao has never been uncovered.AIM:
This investigation intends to provide light on Qingdao's paternal genetic diversity and its evolutionary connections to other Han subgroups. SUBJECTS ANDMETHODS:
The genetic polymorphisms of 41 Y-chromosomal short tandem repeat (STR) loci in the Qingdao Han were investigated using SureID® PathFinder Plus Kit. Phylogenetic studies were performed using genotype data from 52 East Asian groups at 23 common Y-STR loci. A multidimensional scaling plot and cladogram were constructed. Linear Discriminant Analysis (LDA) was carried out for predicting categories among the Han people. The k-nearest neighbour (kNN) algorithm was utilised to designate Y-SNP haplogroups for each haplotype.RESULTS:
The Qingdao Han were genetically far from the Tibeto-Burman populations and close with the Han people from northern China. LDA indicated a deep integration among the present-day Han people. By the kNN model, the predicted O2a2 and O2a1 were shown to be the predominant Y-SNP haplogroups.CONCLUSIONS:
This study would be helpful for reconstructing the patrilineal history in China and establishing a more comprehensive Y-STR database.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Etnicidade
/
Genética Populacional
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article