| 基于线粒体Cyt b基因的黄海南部和东海银鲳群体遗传结构分析 |
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| 引用本文： | 赵峰,庄平,章龙珍,施兆鸿.基于线粒体Cyt b基因的黄海南部和东海银鲳群体遗传结构分析[J].水生生物学报,2011,35(5):745-752. |
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| 作者姓名： | 赵峰 庄平 章龙珍 施兆鸿 |
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| 作者单位： | 中国水产科学研究院东海水产研究所,农业部海洋与河口渔业资源与生态重点开放实验室,上海200090 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金(东海水产研究所2007Z02)资助 |
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| 摘 要： | 采用线粒体DNA细胞色素b基因片段为遗传标记,对黄海南部和东海银鲳(Pampus argenteus)群体的遗传结构进行了分析。在所分析的6个采样点116个个体中,共检测到40种单倍型。6个群体均呈现出高单倍性多样性(0.647—0.895)和低核苷酸多样性(0.0008—0.0026)的特点。单倍型邻接关系树的拓扑结构简单,未呈现明显的地理谱系结构。分子方差分析和Fst显示银鲳的遗传变异来自群体内个体间,而群体间无显著遗传分化。Exact检验表明单倍型在两两群体间分布频率的差异不显著。研究结果表明,黄海南部、东海银鲳群体间具有高度的基因交流,是一个随机交配群体。较强的扩散能力,黄海、东海的海洋环流以及近期的群体扩张可能是造成黄海南部、东海银鲳群体间遗传同质性较高的原因。
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| 关 键 词： | 银鲳 细胞色素b 野生群体 遗传多样性 |
POPULATION GENETIC STRUCTURE OF PAMPUS ARGENTEUS IN THE SOUTH YELLOW SEA AND EAST CHINA SEA BASED ON THE MITOCHONDRIAL CYT B SEQUENCE |
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| ZHAO Feng,ZHUANG Ping,ZHANG Long-Zhen,SHI Zhao-Hong.POPULATION GENETIC STRUCTURE OF PAMPUS ARGENTEUS IN THE SOUTH YELLOW SEA AND EAST CHINA SEA BASED ON THE MITOCHONDRIAL CYT B SEQUENCE[J].Acta Hydrobiologica Sinica,2011,35(5):745-752. |
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| Authors: | ZHAO Feng ZHUANG Ping ZHANG Long-Zhen SHI Zhao-Hong |
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| Institution: | ZHAO Feng,ZHUANG Ping,ZHANG Long-Zhen and SHI Zhao-Hong(Key and Open Laboratory of Maine and Estuary Fisheries Resource and Ecology,Ministry of Agriculture,East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China) |
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| Abstract: | Silver pomfret(Pampus argenteus) is an important fisheries resource in China,and distributes along the coast from the Bohai Sea to the South China Sea.The fish population has been greatly decreased these years due to over ex-ploitation and the lack of the long-run and effective administer.In order to protect the fish population,it is necessary to study genetic structure of the fish population,which is very important for harvest management and stock conservation.Fish specimens(totally 116 individuals) used i... |
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| Keywords: | Pampus argenteus Cytochrome b(Cyt b) Wild population Genetic diversity |
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