Molecular phylogenetic study on the origin and evolution of Mustelidae
Molecular phylogenetic study on the origin and evolution of Mustelidae
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DOI：
10.1016/j.gene.2006.12.040
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发表时间：
2007-07-01
期刊：
影响因子：
3.5
通讯作者：
Hasegawa, Masami
中科院分区：
文献类型：
--
作者：
Yonezawa, Takahiro;Nikaido, Masato;Hasegawa, Masami
Mustelidae科由Mustelinae、Lutrinae、Melinae和Taxdiinae组成，是食肉动物中最大的一科，是一个高度多样化的类群。最近的分子系统发育研究已经澄清了Mustelidae之间的系统发育关系，但仍有一些问题尚未解决，特别是关于深层分支的问题。虽然许多研究支持Musteloidae中Mustelidae+Procyonidae的单一性，但Mustelidae+Procyonidae、Ailuridae和Miphitidae之间的关系尚不清楚。为了解决这些问题，我们使用最大似然法根据线粒体基因组和多个核基因的序列推导出一棵树。我们的结果有力地支持了红豆杉亚科首先分枝，然后黑豆杉亚科分枝的假设。在那之后，Mustelinae多样化，Lutrinae在Mustelinae内部进化。在对数似然得分上，沙鼠总科深部分枝的Ailuridae/Mephitidae单系树和Mephitidae基树是不可区分的，这一问题仍未得到解决。(C)2007 Elsevier B.V.保留所有权利。
The family Mustelidae, which consists of Mustelinae, Lutrinae, Melinae, and Taxidiinae, is the largest family among Carnivora and is a highly diverse group. Recent molecular phylogenetic studies have clarified the phylogenetic relations among Mustelidae, but there remain several unresolved problems, particularly concerning the deep branchings. Whereas many studies support the monophyly of Mustelidae+Procyonidae among Musteloidea, the relations between Mustelidae+Procyonidae, Ailuridae, and Miphitidae are still unclear. To address these problems, we inferred a tree on the basis of the sequences of mitochondrial genomes and of multiple nuclear genes using the maximum likelihood method. Our results strongly support the hypothesis that the Taxidiinae branched at first, followed by the branching of the Melinae. After that, Mustelinae diversified, and Lutrinae evolved within Mustelinae. With respect to the deep branchings in Musteloidea, the Ailuridae/Mephitidae monophyly tree and the Mephitidae-basal tree are indistinguishable in log-likelihood score, and this problem remains unresolved. (c) 2007 Elsevier B.V. All rights reserved.