A molecular phylogeny of anseriformes based on mitochondrial DNA analysis
A molecular phylogeny of anseriformes based on mitochondrial DNA analysis
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DOI：
10.1016/s1055-7903(02)00019-2
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发表时间：
2002-06-01
影响因子：
4.1
通讯作者：
Hänni, C
中科院分区：
文献类型：
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作者：
Donne-Goussé, C;Laudet, V;Hänni, C
为了研究雁形目鸟类的系统发育关系，测定了24属45种水禽的线粒体控制区（CR）全序列，现有的一半。为了确认基于CR分析的结果，我们还基于两个线粒体蛋白编码基因细胞色素B（cytB）和NADH脱氢酶亚基2（ND 2）分析了代表性物种。这些数据使我们能够构建一个强大的雁形目的进化史，并将其与现有的基于形态学或分子数据的进化史进行比较。Chauna和Dendrocygna被鉴定为雁形目的早期分支。所有其余的类群落入两个分支，对应于两个亚科Anatinae和雁亚科。在雁亚科内，Branta和Anser聚在一起，而Coscoroba，Cygnus和Cereopsis形成一个相对较弱的分支，Cygnus首先发散。五个分支是明确可识别的Anatinae：（一）Anatini与Anas和Lophonetta;（二）Aythyini与Aythya和Netta;（三）Cairinini与Cairina和Aix;（四）Mergini与Mergus，Bucephala，Melanitta，Callonetta，Somateria和Clangula，以及（五）Tadornini与Tadorna，Chloephaga和Alopochen。塔多尔尼族很早就从阿纳蒂尼族分化出来;然后梅尔吉尼族和一个大的类群，包括阿纳蒂尼族、Aythyini族、Cairinini族，以及两个孤立的属，Chenonetta和Marmaronetta，分化出来。用控制区获得的同源性似乎比用线粒体蛋白质编码基因如ND 2和cytb获得的同源性更强。这表明CR是鸟类繁殖的有力工具，不仅在小规模上（即，物种之间的关系，但也在家庭层面。虽然形态学分析有效地解决了鸭亚科和雁亚科之间的分裂和一些分支的存在，但当形态学和分子数据进行比较时，分支的精确组成是不同的。(C)2002 Elsevier Science（美国）。All rights reserved.
To study the phylogenetic relationships among Anseriformes, sequences for the complete mitochondrial control region (CR) were determined from 45 waterfowl representing 24 genera, i.e., half of the existing genera. To confirm the results based on CR analysis we also analyzed representative species based on two mitochondrial protein-coding genes, cytochrome b (cytb) and NADH dehydrogenase subunit 2 (ND2). These data allowed us to construct a robust phylogeny of the Anseriformes and to compare it with existing phylogenies based on morphological or molecular data. Chauna and Dendrocygna were identified as early offshoots of the Anseriformes. All the remaining taxa fell into two clades that correspond to the two subfamilies Anatinae and Anserinae. Within Anserinae Branta and Anser cluster together, whereas Coscoroba, Cygnus, and Cereopsis form a relatively weak clade with Cygnus diverging first. Five clades are clearly recognizable among Anatinae: (i) the Anatini with Anas and Lophonetta; (ii) the Aythyini with Aythya and Netta; (iii) the Cairinini with Cairina and Aix; (iv) the Mergini with Mergus, Bucephala, Melanitta, Callonetta, Somateria, and Clangula, and (v) the Tadornini with Tadorna, Chloephaga, and Alopochen. The Tadornini diverged early on from the Anatinae; then the Mergini and a large group that comprises the Anatini, Aythyini, Cairinini, and two isolated genera, Chenonetta and Marmaronetta, diverged. The phylogeny obtained with the control region appears more robust than the one obtained with mitochondrial protein-coding genes such as ND2 and cytb. This suggests that the CR is a powerful tool for bird phylogeny, not only at a small scale (i.e., relationships between species) but also at the family level. Whereas morphological analysis effectively resolved the split between Anatinae and Anserinae and the existence of some of the clades, the precise composition of the clades are different when morphological and molecular data are compared. (C) 2002 Elsevier Science (USA). All rights reserved.