How reliable are human phylogenetic hypotheses?
How reliable are human phylogenetic hypotheses?
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DOI：
10.1073/pnas.97.9.5003
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发表时间：
2000-04-25
影响因子：
11.1
通讯作者：
Wood, B
中科院分区：
文献类型：
--
作者：
Collard, M;Wood, B
对颅骨和牙齿证据的分支分析已被广泛用于产生关于人类及其化石亲属的系统发育假说。然而.这些假设的可靠性从未受到外部验证。为了纠正这一点，我们采用了相同的方法，从两组现存的高等灵长类动物中获得了相同的证据，这两组灵长类动物是原始人和papionins，它们的分子遗传学是可靠的。我们发现，基于颅齿数据的系统发育假说与这些群体的分子系统发育是不相容的。考虑到分子生物学的鲁棒性。这些结果表明，仅从高等灵长类动物颅齿证据中得出的遗传学结论几乎没有可信度。由此推论，现有的关于人类进化的系统发育假说不太可能是可靠的。因此，需要新的方法来解决人类生殖的问题。
Cladistic analysis of cranial and dental evidence has been widely used to generate phylogenetic hypotheses about humans and their fossil relatives. However. the reliability of these hypotheses has never been subjected to external validation. To rectify this, we applied identical methods to equivalent evidence from two groups of extant higher primates for whom reliable molecular phylogenies are available, the hominoids and papionins. We found that the phylogenetic hypotheses based on the craniodental data were incompatible with the molecular phylogenies for the groups. Given the robustness of the molecular phylogenies. these results indicate that little confidence can be placed in phylogenies generated solely from higher primate craniodental evidence. The corollary of this is that existing phylogenetic hypotheses about human evolution are unlikely to be reliable. Accordingly, new approaches are required to address the problem of hominin phylogeny.