The phylogeny of cobras inferred from mitochondrial DNA sequences: evolution of venom spitting and the phylogeography of the African spitting cobras (Serpentes: Elapidae: Naja nigricollis complex).

The phylogeny of cobras inferred from mitochondrial DNA sequences: evolution of venom spitting and the phylogeography of the African spitting cobras (Serpentes: Elapidae: Naja nigricollis complex).
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从线粒体 DNA 序列推断眼镜蛇的系统发育:吐毒眼镜蛇的进化和非洲吐毒眼镜蛇的系统发育地理学(蛇类:眼镜蛇科:Naja nigricollis 复合体)。

DOI:
10.1016/j.ympev.2007.07.021
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发表时间:
2007
影响因子:
4.1
通讯作者:
D. Broadley
D. Broadley
中科院分区:
生物学1区
文献类型:
--
作者:
W. Wüster;S. Crookes;I. Ineich;Y. Mané;C. Pook;J. Trape;D. Broadley

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我们使用1333bp的线粒体DNA序列的系统发育分析,调查的眼镜蛇一样的眼镜蛇,特别提到的进化吐和非洲吐眼镜蛇,在整个撒哈拉以南非洲地区的开放的植被形成的辐射广泛的地理学的进化和历史的sputtering。我们的研究结果表明,吐适应似乎已经演变了三次眼镜蛇,但替代方案不能被拒绝。亚洲眼镜蛇是单系的,起源于亚洲的单一殖民地。辐射的非洲吐眼镜蛇似乎可以追溯到中新世早期和许多物种形成的事件,在该组早于上新世的草原扩张和辐射的大型放牧哺乳动物在非洲。在这个复杂的分支事件似乎已经触发了生态变化和构造事件与非洲裂谷的形成和扩张。在分类学上,我们的数据证实包括Boulengerina和Paranaja在眼镜蛇,并揭示了一个分支的非洲雨林眼镜蛇,包括N。melanoleuca、Paranaja multifasciata和Boulengerina,它们构成了非洲开放式非吐息眼镜蛇的姐妹分支。黑颈眼镜蛇(Naja nigricollis)是多系的,因此我们认为N. nigricincta为一独立种,与N. ashei和灰绿拟单胞菌N. mossambica比N.黑颈
We use phylogenetic analysis of 1333bp of mitochondrial DNA sequence to investigate the phylogeny and historical biogeography of the cobra-like elapid snakes, with special reference to the evolution of spitting and the phylogeography of the African spitting cobras, a radiation widespread in open vegetational formations throughout sub-Saharan Africa. Our results suggest that spitting adaptations appear to have evolved three times in cobras, but alternative scenarios cannot be rejected. The Asiatic Naja are monophyletic and originate from a single colonization of Asia from Africa. The radiation of the African spitting Naja appears to date back to the early Miocene and many speciation events in the group predate the Pliocene expansion of grasslands and the radiation of large grazing mammals in Africa. The cladogenic events in this complex appear to have been triggered by both ecological changes and tectonic events associated with the formation and expansion of the African Rift Valley. Taxonomically, our data confirm the inclusion of Boulengerina and Paranaja within Naja, and reveal a clade of African rainforest cobras including N. melanoleuca, Paranaja multifasciata and Boulengerina that constitutes the sister clade of the African open-formation non-spitting cobras. Naja nigricollis is polyphyletic, and we therefore recognize N. nigricincta as a separate species, more closely related to N. ashei and N. mossambica than to N. nigricollis.
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发表时间: 1992-10
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影响因子: 3.3
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期刊: Somatic cell and molecular genetics
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期刊: Genetics
影响因子: 3.3
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发表时间: 1993
期刊: Genetics
影响因子: 3.3
作者:
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