Complete mitochondrial genome of the freshwater fish Acrossocheilus longipinnis (Teleostei: Cyprinidae): genome characterization and phylogenetic analysis
Complete mitochondrial genome of the freshwater fish Acrossocheilus longipinnis (Teleostei: Cyprinidae): genome characterization and phylogenetic analysis
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淡水鱼 Acrossocheilus longipinnis（Teleostei：鲤科）的完整线粒体基因组：基因组特征和系统发育分析
DOI：
10.2478/s11756-020-00440-y
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发表时间：
2020-02-10
期刊：
影响因子：
1.5
通讯作者：
Yang, Jin-Quan
中科院分区：
文献类型：
--
作者：
Hou, Xiao-Jing;Lin, Hung-Du;Yang, Jin-Quan
为了验证跨界鱼属的分子系统发育，我们报道了一个新的长尾亚种有丝分裂全基因组，这为更好地了解跨界鱼属的分类地位提供了新的见解。系统发育树根据16个跨猴种的全有丝分裂基因组数据显示出两个主要分支。演化支I为古始群，包括云南古始群和monticola古始群。剩下的种形成II支系，可分为两个亚支系（A亚支系和B亚支系），有较强的支系支持。亚支系B簇表明，长尾刺蒿与虹彩刺蒿和巴波刺蒿是一个单系类群。景观演变对淡水鱼的进化多样化具有重要影响。南岭和武夷山、台湾海峡和琼州海峡对跨鱼多样化的地理障碍起关键作用。本研究结果有助于进一步了解跨猴有丝分裂基因组的结构和进化，为系统发育分析和物种鉴定提供依据。
The genus Acrossocheilus is composed of small- to medium-sized barbine species and is distributed in Laos, Vietnam, Hainan, Taiwan and mainland China. To verify the molecular phylogeny of the genus Acrossocheilus, we report a new whole mitogenome of A. longipinnis, which provides new insights to better understand the taxonomic status of Acrossocheilus fishes. Phylogenetic trees presented two major clades based on whole mitogenomic data from sixteen Acrossocheilus species. Clade I is the ancestral group, including A. monticola and A. yunnanensis. The remaining species form clade II, which can be separated into two subclades (subclades A and B) with strong support. Subclade B clusters indicate that A. longipinnis forms a monophyletic group with A. iridescens and A. barbodon. Landscape evolution can strongly affect the evolutionary diversification of freshwater fishes. The Nanling and Wuyi Mountains, Taiwan Strait and Qiongzhou Strait played a key role in the geographical barriers for Acrossocheilus diversification. Our results improve our understanding of Acrossocheilus mitogenome structure and evolution, which will be useful for phylogenetic analysis and species identification.