New genetic evidence on the evolution of chimpanzee populations and implications for taxonomy
New genetic evidence on the evolution of chimpanzee populations and implications for taxonomy
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DOI：
10.1007/s10764-006-9063-y
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发表时间：
2006-08-01
影响因子：
2.5
通讯作者：
Oates, John F.
中科院分区：
文献类型：
--
作者：
Gonder, Mary Katherine;Disotell, Todd R.;Oates, John F.
灵长类动物学家普遍认为黑猩猩属于一个单一的物种，黑猩猩，他们传统上进一步分为3个亚种：西非黑猩猩。verus，central African P. t. troglodytes和东非P.t.施魏因富尔氏菌。以前，我们认为黑猩猩的地理分布历史可能与广泛使用的物种分类学所暗示的不同。我们的建议仅基于有限的样本的单倍型从线粒体（mt）DNA的第一高变区（HVRI）在尼日利亚的黑猩猩。我们现在已经编制了一个地理上更全面的黑猩猩基因数据库，包括在尼日尔河和萨纳加河附近获得的样本。我们的数据库是由254 HVRI单倍型从黑猩猩已知的地理来源，包括79个独特的HVRI单倍型从黑猩猩生活在尼日利亚和喀麦隆。遗传数据提供了明确的证据，证明喀麦隆中部的Sanaga河附近发生了黑猩猩谱系之间的重大地理断裂，并建议有必要对黑猩猩进行重新分类。
Primatologists widely recognize chimpanzees as belonging to a single species, Pan troglodytes, which they traditionally have further divided into 3 subspecies: west African P. t. verus, central African P. t. troglodytes, and east African P. t. schweinfurthii. Previously, we suggested that the phylogeographic history of chimpanzees may be different from that implied by the widely used taxonomy of the species. We based the suggestion on only a limited sample of haplotypes from the first hypervariable region (HVRI) of mitochondrial (mt)DNA from chimpanzees in Nigeria. We have now compiled a more geographically comprehensive genetic database for chimpanzees, including samples obtained near the Niger and Sanaga Rivers. Our database is composed of 254 HVRI haplotypes from chimpanzees of known geographic origin, including 79 unique HVRI haplotypes from chimpanzees living in Nigeria and Cameroon. The genetic data provide clear evidence that a major phylogeographic break between chimpanzee lineages occurs near the Sanaga River in central Cameroon and suggest the need for a reclassification of chimpanzees.