华北农学报 ›› 2007, Vol. 22 ›› Issue (1): 78-82. doi: 10.3321/j.issn:1000-7091.2007.01.018

所属专题: 水产 生物技术

• 论文 • 上一篇    下一篇

不同水系中华绒螯蟹线粒体COⅠ基因片段的RFLP分析

王晓梅1, 邢克智1, 戴伟1, 王茜1, 曹维维1, 李晓东2   

  1. 1. 天津农学院水产科学系天津市水产生态及养殖重点实验室, 天津 300384;
    2. 盘锦光和水产有限公司, 辽宁 盘锦 124200
  • 收稿日期:2006-04-20 出版日期:2007-02-28
  • 作者简介:王晓梅(1962-),女,天津市人,教授,主要从事水产动物分子系统学和遗传育种的研究。
  • 基金资助:
    天津市应用基础研究重点基金及国际合作基金项目(033803511033803511G);天津市高等教育科技发展基金项目(2004BA31)

RFLP Analysis on Mitochondrial Cytochrome Oxidase I Gene of Chinese Mitten Crab (E. sinensis)

WANG Xiao-mei1, XING Ke-zhi1, DAI Wei1, WANG Qian1, CAO Wei-wei1, LI Xiao-dong2   

  1. 1. Tianjin Key laboratory of Aqua-Ecology and Aquaculture, Department of Fisheries Science, Tianjin Agricultural University, Tianjin 300384, China;
    2. Panjin Guanghe Fisheries Company of Limited, Panjin 124200, China
  • Received:2006-04-20 Published:2007-02-28

摘要: 应用PCR-RFLP技术分析了长江、瓯江和辽河3个水系中华绒螯蟹的线粒体COⅠ的基因片段遗传多样性,应用11种限制性内切酶对COⅠ基因片段进行限制性片段长度多态分析,共检测出6种复合单倍型,其中瓯江群体检测出5种复合单倍型,长江和辽河均有2种复合单倍型。经数理统计分析,3个群体内线粒体DNA的核苷酸多样性指数分别为0.0067(长江)、0.0167(瓯江)和0.0003(辽河),瓯江群体的遗传多态度最高,其次为长江群体,而辽河群体在3个群体中遗传多态度最低。结果说明,中华绒螯蟹具有一定群体内遗传多样性:瓯江群体>长江群体>辽河群体。在群体间,辽河与瓯江群体的净遗传距离最大为0.0237,长江与瓯江群体间的净遗传距离次之为0.0207,而长江与辽河群体间的净遗传距离最小为0.0043,说明3个种群中长江与瓯江种群间的亲缘关系最近,而辽河与瓯江种群间的亲缘关系最远。

关键词: 中华绒螯蟹, 线粒体细胞色素氧化酶亚单位Ⅰ基因, 限制性片段长度多态性, 遗传多样性

Abstract: The fragments of mitochondrial cytochrome oxidase I of Eriocheir sinensis from Changjiang, Oujiang and Liaohe were amplified by using PCR-RFLP technique. 11 restriction endonucleases were used to digest the PCR products. In this study there were 6 composite haplotypes in the 3 populations, there were 5 composite haplotypes in Oujiang population and 2 ones in population of Liaohe and Changjiang. The index of nucleotide diversity (π value) were 0.0167 (Oujiang), 0.0067 (Changjiang) and 0.0003 (Liaohe) respectively, indicating that the genetic diversity of Oujiang population was highest among the 3 populations, the genetic diversity of Changjiang population was higher than that of Liaohe population. Interpopulational net genetic distance was the highest (0.0237) between Liaohe and Oujiang, while it was 0.0207 between Changjiang and Oujiang and was 0.0043 between Chanjiang and Liaohe samples. The results indicated that the relationship between the populations from Changjiang and Oujiang was the closest, and that of Liaohe and Oujiang populations was the most distant.

Key words: E. sinensis, Mitochondrial cytochrome oxidase I, RFLP, Genetic diversity

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引用本文

王晓梅, 邢克智, 戴伟, 王茜, 曹维维, 李晓东. 不同水系中华绒螯蟹线粒体COⅠ基因片段的RFLP分析[J]. 华北农学报, 2007, 22(1): 78-82. doi: 10.3321/j.issn:1000-7091.2007.01.018.

WANG Xiao-mei, XING Ke-zhi, DAI Wei, WANG Qian, CAO Wei-wei, LI Xiao-dong. RFLP Analysis on Mitochondrial Cytochrome Oxidase I Gene of Chinese Mitten Crab (E. sinensis)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(1): 78-82. doi: 10.3321/j.issn:1000-7091.2007.01.018.

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