| 福建近海蓝圆鲹种群遗传多样性的AFLP分析 |
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| 引用本文： | 张丽艳,苏永全,丁少雄,牛素芳,刘东腾,王军.福建近海蓝圆鲹种群遗传多样性的AFLP分析[J].水产学报,2010,34(5):680-687. |
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| 作者姓名： | 张丽艳 苏永全 丁少雄 牛素芳 刘东腾 王军 |
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| 作者单位： | 厦门大学海洋与环境学院,福建,厦门,361005 |
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| 基金项目： | 福建省科技计划项目(2007I0005) |
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| 摘 要： | 以往研究表明,福建近海的蓝圆鲹分属2个地理种群,即东海西部种群和闽南—粤东近海地方种群。为研究这两个群系的遗传结构,对蓝圆鲹闽东(30尾)和闽南(32尾)种群进行了AFLP分析,8对选择性引物在2个种群62个个体中,共扩增出563个位点,其中多态位点364个。闽东和闽南种群的多态位点比例、Nei遗传多样性指数和Shannon遗传多样性指数分别为62.70%、58.97%,0.1875、0.1809和0.2878、0.2763。与其他鱼类对比显示,福建近海蓝圆鲹种群的遗传多样性水平高,说明种群遗传结构尚未遭到明显破坏;基因分化系数GST、Shannon遗传多样性指数和AMOVA分析均显示蓝圆鲹的遗传变异主要来源于种群内,而种群间无明显的遗传分化。Nm显示2个种群间基因交流频繁。种群的显性基因型频率分布和位点差异数分布显示2个种群有基本相同的群体遗传结构。结果表明,蓝圆鲹闽东和闽南种群间无明显的遗传差异,因此可将福建海域的蓝圆鲹划归同一个管理保护单元。较强的扩散能力及海洋环流可能是造成福建近海蓝圆鲹种群间遗传同质性较高的原因。
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| 关 键 词： | 蓝圆鲹 遗传多样性 扩增酶切片段多态性 |
| 收稿时间： | 2009/12/7 0:00:00 |
| 修稿时间： | 2010/2/22 0:00:00 |
Analysis of genetic diversity of Decapterus maruadsi in the coastal waters of Fujian Province |
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| SU Yongquan,DING Shaoxiong,NIU Sufang,LIU Dongteng and WANG Jun.Analysis of genetic diversity of Decapterus maruadsi in the coastal waters of Fujian Province[J].Journal of Fisheries of China,2010,34(5):680-687. |
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| Authors: | SU Yongquan DING Shaoxiong NIU Sufang LIU Dongteng and WANG Jun |
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| Affiliation: | ZHANG Li-yan,SU Yong-quan,DING Shao-xiong,NIU Su-fang,LIU Dong-teng,WANG Jun* (College of Oceanography , Environmental Science,Xiamen University,Xiamen 361005,China) |
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| Abstract: | Decapterus maruadsi in Fujian coastal waters has been facing considerable fishing pressure because the resources of main economic demersal fishes have been exhausted. The information of stock structure of different populations will give us theoretical guidance in planning management and conservation of natural resources and in genetic improvement programs. In this study,amplified fragment length polymorphism (AFLP) was used to analyze the genetic diversity and variation of two populations of D. maruadsi fro... |
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| Keywords: | Decapterus maruadsi genetic diversity amplified fragment length polymorphism(AFLP) |
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