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基于rRNA基因ITS-1序列探讨扭蚌和反扭蚌的分类地位
Phylogenetic Relationship between Arconaia lanceolata and A.mutica Inferred from ITS-1 Sequences
【摘要】 测定并比较了扭蚌和反扭蚌的ITS-1序列,以三角帆蚌为外类群,利用M ega 2.0软件中的最大简约法(MP法)和邻接法(NJ法)构建它们的系统发育树,试验结果表明,扭蚌和反扭蚌聚在一起形成一分支,三角帆蚌形成另一独立的分支;由此推断,扭蚌和反扭蚌属同物异名。
【Abstract】 The phylogenetic relationship between Arconaia lanceolata and A.mutica was investigated using sequences of the first internal transcribed spacer region(ITS-1) of ribosomal DNA(rDNA).The phylogenetic tree was assessed using Neighbor-joining(NJ) and maximum parsimony(MP) analyses.No variations were found in the phylogenies created by the two methods.The results suggest that Arconaia lanceolata and A.mutica are probably the same species.
【关键词】 扭蚌;
反扭蚌;
ITS-1;
系统发育树;
【Key words】 Arconaia lanceolata; A.mutica; ITS-1 region; phylogeny tree;
【Key words】 Arconaia lanceolata; A.mutica; ITS-1 region; phylogeny tree;
【基金】 江西省学科学术带头人计划项目(2003-154);江西省自然科学基金资助项目(0030026);南昌大学校基金资助项目(Z-02931)
- 【文献出处】 水产科学 ,Fisheries Science , 编辑部邮箱 ,2007年06期
- 【分类号】Q959
- 【被引频次】5
- 【下载频次】162