| 宫井洋大黄鱼遗传多样性的RAPD分析 |
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| 引用本文： | 王军,全成干,苏永全,丁少雄,张纹.宫井洋大黄鱼遗传多样性的RAPD分析[J].海洋学报,2001,23(3):87-91. |
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| 作者姓名： | 王军 全成干 苏永全 丁少雄 张纹 |
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| 作者单位： | 厦门大学海洋学系亚热带海洋研究所, 福建厦门361005 |
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| 基金项目： | 国家教育部博士点基金资助项目(97038409). |
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| 摘 要： | 采用随机扩增多态性DNA(RAPD)技术对取自宁德官井洋闽—粤东族大黄鱼的野生种群和养殖群体进行遗传多样性分析.结果表明,野生种群的平均多态性为18.9%,平均遗传差异度为0.0960;养殖群体的分别为16.7%和0.0747;野生种群与养殖群体之间的相似系数为0.9959,遗传距离为0.0041.分析结果表明官井洋大黄鱼野生种群和养殖群体遗传多样性水平较低的主要原因在于过度捕捞、有效繁育群体数量偏少及值得探讨的人工放流等.提出官井洋大黄鱼仍具有一定的变异潜力,尽快采取有效的管理保护措施,可以保持乃至提高大黄鱼现有的遗传多样性水平.
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| 关 键 词： | 大黄鱼 遗传多样性 PAPD |
| 文章编号： | 0253-4193(2001)03-0087-05 |
| 收稿时间： | 1999/12/6 0:00:00 |
| 修稿时间： | 1999年12月6日 |
RAPD analysis of the reared and wild Pseudosciaena crocea |
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| WANG Jun,QUAN Cheng-gan,SU Yong-quan,DING Shao-xiong and ZHANG Wen.RAPD analysis of the reared and wild Pseudosciaena crocea[J].Acta Oceanologica Sinica (in Chinese),2001,23(3):87-91. |
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| Authors: | WANG Jun QUAN Cheng-gan SU Yong-quan DING Shao-xiong and ZHANG Wen |
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| Institution: | Department of Oceanography & Institute of Subtropical Oceanography, Xiamen University, Xiamen 361005, China |
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| Abstract: | Genetic diversity of DNA in both reared and wild large yellow croaker P. crocea (Richardson) stocks collected from Bay Sandu'ao in Ningde on May 29, 1999 is analyzed by RAPD. The DNA genetic diversity of wild population is relatively low, with 18 98% of the polymorphism and 0 096 0 of the mean difference. However, the genetic diversity of reared stock is lower than that of the wild one with just 16 7% of the polymorphism and 0 074 7 of the mean difference. The results from the practical fish culture and the this study reveal that genetic diversity of both P. crocea stocks has seriously been lost since the 1990 s. In order to protect and use the good genetic characteristics of P. crocea continuously, some suggestions are conducted. |
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| Keywords: | Pseudosciaena crocea cenetic diversity RAPD |
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