MtDNA Diversity in Indigenous Populations of Siberia

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出版者:Russian Academy of Sciences
作者:Elena B. Starikovskaya
出品人:
页数:50
译者:
出版时间:2005-1
价格:0
装帧:Paperback
isbn号码:9780401111611
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图书标签:
  • 民族志 
  • 分子生物学 
  • 世界史前史 
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In search of the ancestors of Native American mitochondrial DNA (mtDNA) haplogroups, we

analyzed the mtDNA of 531 individuals from nine indigenous populations in Siberia. All mtDNAs

were subjected to high-resolution RFLP analysis, sequencing of the control-region hypervariable

segment I (HVS-I), and surveyed for additional polymorphic markers in the coding region.

Furthermore, the mtDNAs selected according to haplogroup/subhaplogroup status were

completely sequenced. Phylogenetic analyses of the resulting data, combined with those from

previously published Siberian arctic and sub-arctic populations, revealed that remnants of the

ancient Siberian gene pool are still evident in Siberian populations, suggesting that the founding

haplotypes of the Native American A–D branches originated in different parts of Siberia. Thus,

lineage A complete sequences revealed in the Mansi of the Lower Ob and the Ket of the Lower

Yenisei belong to A1, suggesting that A1 mtDNAs occasionally found in the remnants of huntinggathering

populations of northwestern and northern Siberia belonged to a common gene pool of

the Siberian progenitors of Paleoindians. Moreover, lineage B1, which is the most closely related

to the American B2, occurred in the Tubalar and Tuvan inhabiting the territory between the upper

reaches of the Ob River in the west, to the Upper Yenisei region in the east. Finally, the sequence

variants of haplogroups C and D, which are most similar to Native American C1 and D1, were

detected in the Ulchi of the Lower Amur. Overall, our data suggest that the immediate ancestors of

the Siberian/Beringian migrants who gave rise to ancient (pre-Clovis) Paleoindians have a

common origin with aboriginal people of the area now designated the Altai-Sayan Upland, as well

as the Lower Amur/Sea of Okhotsk region

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