Population structure and genetic diversity of Sinibrama macrops from Ou River and Ling River based on mtDNA D-loop region analysis, China

IF 1.1 4区生物学 Q4 GENETICS & HEREDITY

Mitochondrial Dna Part a Pub Date : 2018-02-17 DOI:10.1080/24701394.2016.1278533

Liangjie Zhao, Erica Chenoweth, Qigen Liu

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引用次数: 4

Abstract

Abstract In order to understand the influence of human activities such as habitat fragmentation on freshwater fish population evolution, we investigated and compared the genetic diversity and phylogeography of Sinibrama macrops populations in the Oujiang River and Ling River. Mitochondrial control region sequences (D-loop region) of 131 specimens from six populations were obtained and analyzed. The diversity of main stream in the Ou River was lower than that in Ling River. Changtan population showed the lowest diversity (H = 0.646 ± 0.077; π = 0.00060 ± 0.00820). Pairwise FST, gene flow (Nm), and genetic distance (Da) indicated that Longquan and Changtan significantly differentiate from other populations. Nested clade phylogeographical analysis (NCPA) showed some clades and total cladogram experienced isolation by distance. In conclusion, the populations from severely fragmented Ou River have the lower diversity and more intense differentiation than that from the mainstream of Ling River, Changtan population present the lowest diversity and were isolated by the dam construction.

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基于mtDNA D-loop区分析的瓯江和陵江大麻种群结构与遗传多样性

摘要为了解生境破碎化等人类活动对淡水鱼种群进化的影响，研究了瓯江和陵江两河流域大鳞sininibrama macrops种群的遗传多样性和系统地理特征。对来自6个种群的131份标本的线粒体控制区(d环区)序列进行了分析。瓯江干流生物多样性低于陵江干流。长滩种群多样性最低(H = 0.646±0.077;π = 0.00060±0.00820)。FST、基因流量(Nm)和遗传距离(Da)的成对分析表明，龙泉和长滩与其他种群存在显著差异。巢状进化枝系统地理分析(NCPA)显示，部分进化枝和总进化枝存在距离隔离。综上所示，瓯江重度破碎化区种群多样性低于陵江干流区种群多样性，且分化程度较强，长滩区种群多样性最低，且因大坝建设而被隔离。

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来源期刊

Mitochondrial Dna Part a Biochemistry, Genetics and Molecular Biology-Genetics

CiteScore

3.00

自引率

0.00%

发文量

期刊介绍： Mitochondrial DNA Part A publishes original high-quality manuscripts on physical, chemical, and biochemical aspects of mtDNA and proteins involved in mtDNA metabolism, and/or interactions. Manuscripts on cytosolic and extracellular mtDNA, and on dysfunction caused by alterations in mtDNA integrity as well as methodological papers detailing novel approaches for mtDNA manipulation in vitro and in vivo are welcome. Descriptive papers on DNA sequences from mitochondrial genomes, and also analytical papers in the areas of population genetics, phylogenetics and human evolution that use mitochondrial DNA as a source of evidence for studies will be considered for publication. The Journal also considers manuscripts that examine population genetic and systematic theory that specifically address the use of mitochondrial DNA sequences, as well as papers that discuss the utility of mitochondrial DNA information in medical studies and in human evolutionary biology.

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