Multi-locus phylogeny using topotype specimens sheds light on the systematics of Niviventer (Rodentia, Muridae) in China.
Multi-locus phylogeny using topotype specimens sheds light on the systematics of Niviventer (Rodentia, Muridae) in China.
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使用拓扑型标本的多位点系统发育揭示了中国啮齿类动物（啮齿目，鼠科）的系统学
DOI：
10.1186/s12862-016-0832-8
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发表时间：
2016-12-01
影响因子：
3.4
通讯作者：
Jiang X
中科院分区：
文献类型：
--
作者：
Zhang B;He K;Wan T;Chen P;Sun G;Liu S;Nguyen TS;Lin L;Jiang X
背景：白腹鼠是印度-巽他地区最常见的啮齿动物之一。该属的分类经历了广泛的修订，仍然存在争议。目前的系统发育尚未得到解决，主要是在线粒体基因的基础上发展起来的。鉴定是极其困难的，大量的基因库序列似乎是有问题的。我们在中国和邻近的北方越南广泛采集了白腹鼠的标本，包括最多报道的种（n = 6），亚种（n = 8）和同义词（n = 4）的拓扑型。我们估计的基础上的一个线粒体和三个核基因的系统发育关系，使用串联和聚结为基础的方法。我们还采用了分子物种划分方法来检验是否存在潜在的和假定的新物种。类似孔子的物种。我们的数据为N. brahma和N. EHA作为姐妹种，这一分配与它们的形态相似性一致。物种定界分析为物种多样性和系统学提供了新的视角。N. confucianus和N. fulvescens在我们的物种划分分析中被支持为遗传上不同的，而三个公认的物种（N. coninga，N. huang，和N.结论：我们的研究结果表明，几个遗传上不同的物种可能包含在目前被称为N。confucianus和N. fulvescens此外，贝叶斯系统发生学和系统地理学（BPP）的结果，N。coninga，N. huang，和N. lotipes表明种间基因流已经发生或存在不完善的分类。形态学检查和形态计量学分析是必要的，以检查分子结果。
Background:Niviventer is a genus of white-bellied rats that are among the most common rodents in the Indo-Sundaic region. The taxonomy of the genus has undergone extensive revisions and remains controversial. The current phylogeny is unresolved and was developed primarily on the basis of mitochondrial genes. Identification is extremely difficult, and a large number of GenBank sequences seem to be problematic. We extensively sampled specimens of Niviventer in China and neighboring northern Vietnam, including topotypes of the most reported species (n = 6), subspecies (n = 8), and synonyms (n = 4). We estimated phylogenetic relationships on the basis of one mitochondrial and three nuclear genes, using concatenation and coalescent-based approaches. We also employed molecular species delimitation approaches to test the existence of cryptic and putative new species.Results:Our phylogeny was finely resolved, especially for the N. confucianus-like species. Our data provided the first support for N. brahma and N. eha as sister species, an assignment that is congruent with their morphological similarities. Species delimitation analyses provided new insight into species diversity and systematics. Three geographic populations of N. confucianus and one of N. fulvescens were supported as genetically distinct in our species delimitation analyses, while three recognized species (N. coninga, N. huang, and N. lotipes) were not strongly supported as distinct.Conclusions:Our results suggested that several genetically distinct species may be contained within the species currently known as N. confucianus and N. fulvescens. In addition, the results of Bayesian Phylogenetics and Phylogeography (BPP) for N. coninga, N. huang, and N. lotipes indicated that either inter-specific gene flow had occurred or imperfect taxonomy was present. Morphological examinations and morphometric analyses are warranted to examine the molecular results.
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影响因子：
6.5
作者：
Huelsenbeck, JP;Rannala, B
通讯作者：
Rannala, B
影响因子：
4.1
作者：
Jing, Meidong;Yu, Hon-Tsen;Zheng, Xiaoguang
通讯作者：
Zheng, Xiaoguang
影响因子：
10.7
作者：
Kumar, Sudhir;Stecher, Glen;Tamura, Koichiro
通讯作者：
Tamura, Koichiro
影响因子：
6.5
作者：
Fujisawa T;Barraclough TG
通讯作者：
Barraclough TG
鼹鼠（Talpini、Talpidae、Eulipotyphla）的多位点系统发育及其对系统学的影响
影响因子：
4.1
作者：
He, Kai;Shinohara, Akio;Campbell, Kevin L.
通讯作者：
Campbell, Kevin L.