| 两种泥鳅不同群体遗传变异的RAPD分析 |
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| 引用本文： | 常重杰,周荣家,余其兴.两种泥鳅不同群体遗传变异的RAPD分析[J].动物学报,2001,47(1):89-93. |
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| 作者姓名： | 常重杰 周荣家 余其兴 |
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| 作者单位： | 武汉大学生命科学学院, |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目，39770407，，， |
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| 摘 要： | 应用RAPD技术，分析了采自于我国黄河、长江和珠江三大水系中游的大鳞副泥鳅和泥鳅不同群体间的遗传变异。结果表明：种内不同群体间带纹相似度在0．730－0．938之间；遗传距离为0．089－0．245；种间不同群体间的带纹相似度为0．392－0．505，遗传距离为0．620－0．800。两种泥鳞采自武汉的群体，其不同个体间的相似度较之其它群体为低，表明其群体内遗传变异程度较高。
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| 关 键 词： | 泥鳅 大鳞副泥鳅 群体遗传变异 RAPD |
GENETIC VARIATION OF TWO LOACH SPECIES REVEALED BY RAPD ANALYSIS |
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| CHANG Zhong-jie,ZHOU Rong-jia,YU Qi-xing.GENETIC VARIATION OF TWO LOACH SPECIES REVEALED BY RAPD ANALYSIS[J].Acta Zoologica Sinica,2001,47(1):89-93. |
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| Authors: | CHANG Zhong-jie ZHOU Rong-jia YU Qi-xing |
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| Abstract: | Inter- and intra-population genetic variation of Misgurnus anguillicaudatus and Paramisgurnus dabrganus, from middle reaches of Huanghe, Changjiang and Zhujiang rivers, were analyzed using RAPD makers. The results showed that: the average band sharing coefficient of conspecific populations is 0.730～0.938, the corresponding genetic distance is 0.089～0.245; the average band sharing coefficient of interspecies populations is 0.392～0.505, the corresponding genetic distance is 0.620～0.800. The average band sharing coefficient of Wuhan samples is lower than the that of other populations. It indicated that the genetic distance among individuals of Wuhan population is higher. No sex-specific fragments were found in the two loaches. |
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| Keywords: | Misgurnus anguillicaudatus Paramisgurnus dabrganus Population genetic variation RAPD |
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