| 基于Cyt b 标记研究尖鳍鲤在鲤形目
鱼类中的系统发育地位 |
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| 引用本文： | 姚东林,王超,周爱国,谢少林,邹记兴.基于Cyt b 标记研究尖鳍鲤在鲤形目
鱼类中的系统发育地位[J].广东农业科学,2014,41(12):114-118. |
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| 作者姓名： | 姚东林 王超 周爱国 谢少林 邹记兴 |
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| 作者单位： | 1.华南农业大学动物科学学院，广东广州510642；2.清远市北江水产科学研究所，广东清远511510 |
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| 基金项目： | 国家科技支撑计划项目(2013BAD10B04-1）；广
东省海洋渔业科技推广专项(A201301F03） |
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| 摘 要： | 基于线粒体Cyt b 标记分析尖鳍鲤及其他28 种鲤形目鱼类之间的遗传距离，并且通过邻接法构建系统
进化树。结果显示，这29 种鱼类的遗传距离范围在0.003~0.304 之间，平均遗传距离为0.227，尖鳍鲤和三角鲤的遗
传距离最小、为0.003，几乎接近种内遗传距离的差异水平，显示两者在遗传上高度接近。从进化上看，尖鳍鲤位于鲤
科的分支之中，与三角鲤有较近的亲缘关系，两者以很高的支持率聚成姐妹分支(bp=95），然后再与锦鲤聚在一起
(bp=100）。研究初步确定了尖鳍鲤在鲤形目中的分类地位。
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| 关 键 词： | 细胞色素b 分子系统学 尖鳍鲤 鲤科 |
Phylogenetic analysis of Cyprinus Acutidorsalis Wang
in Cypriniformes based on the Cyt b Marker |
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| Abstract: | The genetic distances among Cyprinus acutidorsalis Wang and other 28 fish species in Cypriniformes were
analyzed based on the mitochondrial Cyt b gene, and the phylogenetic tree was further constructed through neighborjoining
method. The results revealed that the genetic distance ranged from 0.003 to 0.304 among the 29 species and the
average interspecific genetic distance was 0.227. C. acutidorsalis Wang and C. multitaeniata showed the least genetic
distance of 0.003, close to the difference levels of the intraspecific genetic distance, which indicated that both of them were
genetically close. From an evolutionary point of view, C. acutidorsalis Wang was located in the branch of Cyprinidae, and
had close genetic relationship with C. multitaeniata, both of which clustering as sister branches (bp=95) got together with C.
carpio (bp=100). This study initially identified the taxonomic status of C. acutidorsalis Wang in Cypriniformes. |
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| Keywords: | Cyt b molecular systematics Cyprinus acutidorsalis Wang Cyprinidae |
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