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Clinical Trial
. 2013 Dec 12;8(12):e83570.
doi: 10.1371/journal.pone.0083570. eCollection 2013.

Investigating the prehistory of Tungusic peoples of Siberia and the Amur-Ussuri region with complete mtDNA genome sequences and Y-chromosomal markers

Affiliations
Clinical Trial

Investigating the prehistory of Tungusic peoples of Siberia and the Amur-Ussuri region with complete mtDNA genome sequences and Y-chromosomal markers

Ana T Duggan et al. PLoS One. .

Abstract

Evenks and Evens, Tungusic-speaking reindeer herders and hunter-gatherers, are spread over a wide area of northern Asia, whereas their linguistic relatives the Udegey, sedentary fishermen and hunter-gatherers, are settled to the south of the lower Amur River. The prehistory and relationships of these Tungusic peoples are as yet poorly investigated, especially with respect to their interactions with neighbouring populations. In this study, we analyse over 500 complete mtDNA genome sequences from nine different Evenk and even subgroups as well as their geographic neighbours from Siberia and their linguistic relatives the Udegey from the Amur-Ussuri region in order to investigate the prehistory of the Tungusic populations. These data are supplemented with analyses of Y-chromosomal haplogroups and STR haplotypes in the Evenks, Evens, and neighbouring Siberian populations. We demonstrate that whereas the North Tungusic Evenks and Evens show evidence of shared ancestry both in the maternal and in the paternal line, this signal has been attenuated by genetic drift and differential gene flow with neighbouring populations, with isolation by distance further shaping the maternal genepool of the Evens. The Udegey, in contrast, appear quite divergent from their linguistic relatives in the maternal line, with a mtDNA haplogroup composition characteristic of populations of the Amur-Ussuri region. Nevertheless, they show affinities with the Evenks, indicating that they might be the result of admixture between local Amur-Ussuri populations and Tungusic populations from the north.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Map of Siberia showing approximate locations of sampled populations and their basic haplogroup composition.
(Sub)population abbreviations as in Table 1.
Figure 2
Figure 2. MJ-network of mtDNA haplogroup C4a.
The North Tungusic haplotypes are coloured by population (Evenks and Evens) rather than subgroup. The size of the nodes is proportional to the number of individuals carrying that node, and the number of mutations is indicated along the branches. The labelled subhaplogroups are discussed in the text.
Figure 3
Figure 3. MJ-network of mtDNA haplogroup C4b.
The North Tungusic haplotypes are coloured by population (Evenks and Evens) rather than subgroup. The size of the nodes is proportional to the number of individuals carrying that node, and the number of mutations is indicated along the branches. The haplotypes marked by arrows and asterisks are discussed in the text.
Figure 4
Figure 4. MJ-network of various mtDNA M and N subhaplogroups.
The North Tungusic haplotypes are coloured by population (Evenks and Evens) rather than subgroup. The size of the nodes is proportional to the number of individuals carrying that node, and the number of mutations is indicated along the branches. Subhaplogroups discussed in the text are labelled.
Figure 5
Figure 5. Dimensions 1 vs. 2 of a three-dimensional MDS analysis.
Based on pairwise ΦST values between populations; stress = 0.06. (Sub)population abbreviations as in Table 1, with colours distinguishing the different populations: green = Evenks, red = Evens, pink = Udegey, blue = Yakuts, olive = Yukaghirs, orange = Koryaks, black = Nivkh.
Figure 6
Figure 6. CA plot.
Based on mtDNA haplogroup frequencies at the level of resolution depicted in Figure 1, excluding Nivkh and Udegey. (Sub)population abbreviations as in Table 1, with colours distinguishing the different populations: green = Evenks, red = Evens, blue = Yakuts, olive = Yukaghirs, orange = Koryaks; haplogroups in grey.
Figure 7
Figure 7. Bayesian Skyline Analysis plots.
Based on complete mtDNA genome sequences and a strict clock model. A: All Yakuts; B: All Evens; C: Udegey.
Figure 8
Figure 8. MJ-network of Y-chromosomal haplogroup C3c.
Based on nine Y-STRs. The North Tungusic haplotypes are coloured by subgroup. The size of the nodes is proportional to the number of individuals carrying that node, and the number of mutations is indicated along the branches. The haplotype marked by an arrow is discussed in the text. Note that the placement of the Taimyr Evenk haplotype #8 as undertaken by Network is erroneous; as evident from Table S3, this haplotype is only two mutational steps distant from haplotype #10, also labelled in the figure.
Figure 9
Figure 9. MJ-network of Y-chromosomal haplogroup N1b.
Based on nine Y-STRs. The North Tungusic haplotypes are coloured by subgroup. The size of the nodes is proportional to the number of individuals carrying that node, and the number of mutations is indicated along the branches.
Figure 10
Figure 10. RM-MJ network of Y-chromosomal haplogroup N1c.
Based on nine Y-STRs. The North Tungusic haplotypes are coloured by subgroup. The size of the nodes is proportional to the number of individuals carrying that node, and the number of mutations is indicated along the branches.

References

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