| 洱海四种鲤鱼线粒体DNA遗传相似性的初步研究 |
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| 引用本文： | 郑冰蓉,张亚平,昝瑞光ZHENG Bing-rong,ZHANG Ya-ping,ZAN Rui-guang. 洱海四种鲤鱼线粒体DNA遗传相似性的初步研究[J]. 遗传, 2001, 23(6): 544-321 |
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| 作者姓名： | 郑冰蓉 张亚平 昝瑞光ZHENG Bing-rong ZHANG Ya-ping ZAN Rui-guang |
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| 作者单位： | 1.云南大学生命科学与化学学院生物技术系,昆明,650091；2.中国科学院昆明动物研究所细胞与分子进化研究开放实验室,昆明,6502231.Department of Biology,School of Life Sciences and Chemistry,Yunan University,Kunming,Yunnan,650091,China;2.Laboratory of Cellular and Molecular Evolution,Kunming Institute of Zoology,The Chinese Academy of Sciences,Kunming,Yunnan,650223,China |
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| 摘 要： | 用6种限制性内切酶对洱海的四种鲤鱼-洱海鲤(C.barbatus)、春鲤(C.longipectoralis)、大眼鲤(C.megalophthalmus)和杞麓鲤(C.carpio chila),其中前三种为洱海特有,进行了线粒体DNA(mtDNA)的限制性片段长度多态(RFLP)分析,构建了它们的mtDNA限制性内切酶图谱.结果表明,这四种鲤鱼在种内和种间均缺乏mtDNA RFLP.这种现象在鱼类种间的mtDNA的RFLP研究中是罕见的.分析这一现象的原因,可能在于这些物种是同域形成物种,并且其分化时间还相当短。Abstract:Restriction fragment length polymorphism(RFLP)analysis of mitochondrial DNA(mtDNA)showed that there is no genetic divergence both intra-and interspecific of 4 species of Cyprinus(C.barbatus,C.longipectoralis,C.megalophthalmus and C.carpio chila)in Erhai lake,Yunnan.Lack of interspecific mtDNA RFLP,namely the close genetic similarity of these four fish species,is possibly resulted from the sympatric speciation and their short divergence time.In addition,the restriction map was made by double digestion.
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| 关 键 词： | 同域分化 RFLP 鲤属 mtDNA 云南洱海 Key words |
A Primary Detection of Close Genetic Similarity of 4 Cyprinus Species in Erhai Lake |
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| ZHENG Bing-rong,ZHANG Ya-ping,ZAN Rui-guang. A Primary Detection of Close Genetic Similarity of 4 Cyprinus Species in Erhai Lake[J]. Hereditas, 2001, 23(6): 544-321 |
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| Authors: | ZHENG Bing-rong ZHANG Ya-ping ZAN Rui-guang |
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