Phylogenetic relationships and divergence dates of the whole mitochondrial genome sequences among three gibbon genera
Phylogenetic relationships and divergence dates of the whole mitochondrial genome sequences among three gibbon genera
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DOI：
10.1016/j.ympev.2010.01.032
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发表时间：
2010-05-01
影响因子：
4.1
通讯作者：
Ishida, Takafumi
中科院分区：
文献类型：
--
作者：
Matsudaira, Kazunari;Ishida, Takafumi
利用线粒体DNA短序列或部分序列对长臂猿4属12种的系统发育关系进行分析，结果显示，系统发育关系分辨率低，且不一致。它们在短时间内的发散可能需要更长的序列以获得更高的分辨率。为了解决这一问题，我们对敏捷长臂猿、毛长臂猿、诺姆长臂猿和并指合趾猿的线粒体基因组进行了全序列测定。通过邻接分析、最大简约分析和最大似然分析，获得了线粒体基因组的高分辨率系统发育树。用贝叶斯方法估算了线粒体基因组的分化时间，Nomenclus等2属为800万年前，Symphalangus和Hylobates为700万年前，Hylobates pileatus等2属为390万年前，Hylobates lar和Hylobates agilis为330万年前。我们的研究结果支持了长臂猿、合趾长臂猿和长臂猿的属级划分，并提出了长臂猿在上新世分化的新观点。这项研究显示了线粒体全基因组分析的潜力，以揭示详细的长臂猿的分歧历史。(C)2010年爱思唯尔公司All rights reserved.
Phylogenetic relationships of gibbons (4 genera, 12 species) deduced from short/partial mitochondrial DNA sequences were with low resolution and inconsistent. Their divergence over the short period of time may require longer sequences for the higher resolution. To solve the problems, we newly sequenced the whole mitochondrial genome of Hylobates agilis, Hylobates pileatus, Nomascus sp. and Symphalangus syndactylus. A highly resolved phylogenetic tree was obtained for the mitochondrial genome in the neighbor-joining, maximum-parsimony and maximum-likelihood analyses. The divergence dates of mitochondrial genome were estimated by Bayesian method; Nomascus and the other two genera to 8.0 million years ago (MYA), Symphalangus and Hylobates to 7.0 MYA, Hylobates pileatus and the other two Hylobates species to 3.9 MYA and Hylobates lar and Hylobates agilis to 3.3 MYA. Our results support the generic rank of Nomascus, Symphalangus and Hylobates, and proposed a new scenario that the Hylobates gibbons diverged in the Pliocene. This study shows the potential of the whole mitochondrial genome analyses to reveal detailed divergence history of gibbons. (C) 2010 Elsevier Inc. All rights reserved.