The geographic apportionment of mitochondrial genetic diversity in East African chimpanzees, Pan troglodytes schweinfurthii

被引:79
作者
Goldberg, TL [1 ]
Ruvolo, M [1 ]
机构
[1] HARVARD UNIV, DEPT ANTHROPOL, CAMBRIDGE, MA 02138 USA
关键词
chimpanzees; Pan troglodytes schweinfurthii; mitochondrial DNA; genetic diversity; biogeography;
D O I
10.1093/oxfordjournals.molbev.a025841
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
This study is a geographically systematic genetic survey of the easternmost subspecies of chimpanzee, Pan troglodytes schweinfurthii. DNA was noninvasively collected in the form of shed hair from chimpanzees of known origin in Uganda, Rwanda, Tanzania, and Zaire. Two hundred sixty-two DNA sequences from hypervariable region 1 of the mitochondrial control region were generated. Eastern chimpanzees display levels of mitochondrial genetic variation which are low and which an similar to levels observed in humans (Homo sapiens). Also like humans, between 80% and 90% of the genetic variability within the eastern chimpanzees is apportioned within populations. Spatial autocorrelation analysis shows that genetic similarity between eastern chimpanzees decreases clinally with distance, in a pattern remarkably similar to one seen for humans separated by equivalent geographic distances. Eastern chimpanzee mismatch distributions !frequency distributions of pairwise genetic differences between individuals) are similar in shape to those for humans, implying similar population histories of recent demographic expansion. The overall pattern of genetic variability in eastern chimpanzees is consistent with the hypothesis that the subspecies has responded demographically to paleoclimatically driven changes in the distribution of eastern African forests during the recent Pleistocene.
引用
收藏
页码:976 / 984
页数:9
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