| 基于18S rDNA序列对单尾虫属（粘体门，双壳目）的系统学研究 |
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| 引用本文： | 李楠楠,赵元莙,唐发辉,索栋,邱烈.基于18S rDNA序列对单尾虫属（粘体门，双壳目）的系统学研究[J].内江师范学院学报,2012,27(12):38-42,69. |
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| 作者姓名： | 李楠楠 赵元莙 唐发辉 索栋 邱烈 |
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| 作者单位： | 1. 动物生物学重庆市市级重点实验室,重庆师范大学,重庆400047
2. 重庆医药高等专科学校,重庆,400047 |
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| 基金项目： | 国家自然科学基金项目，重庆市科技创新建设项目，重庆市教委项目，重庆师范大学博士启动基金 |
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| 摘 要： | 采用18S rDNA序列为基础的系统分析方法，对采自嘉陵江磁器口江段的黄颡单尾虫Unicauda pelteobagrus Ma，1998进行了分子系统学研究，首次给出了黄颡单尾虫的SSU rDNA序列信息．同时基于18S rDNA数据、遗传距离和系统树特征讨论了尾单尾虫Unicauda caudatus和黄颡单尾虫的系统关系．结果表明，尾单尾虫与尾碘泡虫的系统关系较近，而与黄颡单尾虫系统关系较远，不支持将尾单尾孢虫和黄颡单尾虫同置于单尾虫属中，并对单尾虫属的有效性提出质疑．
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| 关 键 词： | 黄颡单尾虫 尾单尾虫 粘孢子虫 18S rDNA |
Phylogenetic Study on Genus Unicauda (Myxozoa, Bivalvulida) based on 18S rDNA sequences |
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| LI Nan-nan,ZHAO Yuan-jun,TANG Fa-hui,SUO Dong,QIU Lie.Phylogenetic Study on Genus Unicauda (Myxozoa, Bivalvulida) based on 18S rDNA sequences[J].Journal of Neijiang Teachers College,2012,27(12):38-42,69. |
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| Authors: | LI Nan-nan ZHAO Yuan-jun TANG Fa-hui SUO Dong QIU Lie |
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| Institution: | 1.Chongqing Key Laboratory of Animal Biology,Chongqing Normal University,Chongqing 400047,China;2.Chongqing medical and pharmaceutical college,Chongqing 401331,China) |
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| Abstract: | The molecular phylogeny for Unicauda pelteobagrus Ma, 1998, isolated from Pelteobagrus fulvidraco in Ciqikou area of Jialing River, Chongqing China, was studied based on 18S rDNA sequences. The present work also first supplied the 18S rDNA sequences information of Unicauda pelteobagrus Ma, 1998. At the same time, the phylogenic relationship between U. pelteobagrus and U. caudatus was discussed inferred from the 18S rDNA sequences, genetic distance and the characteristics of the phylogenetic tree. The result indicates that U. caudatus has much closer phylogenetic relationship with Myxobolus caudatus and far away from U. pelteobagrus, which did not support the viewpoint that putting U. caudatus and U. pelteobagrus into the same genus Unicauda. The present study also revealed that the validity of genus Unicauda was questionable. |
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| Keywords: | Unicauda pelteobagrus Unicauda caudatus 18S rDNA |
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