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利用ND1、ITS1序列研究三种背角无齿蚌(Anodontawoodiana)分类学问题
引用本文:赵 颖,陈修报,杨 健,刘洪波.利用ND1、ITS1序列研究三种背角无齿蚌(Anodontawoodiana)分类学问题[J].海洋与湖沼,2011,42(4):619-624.
作者姓名:赵 颖  陈修报  杨 健  刘洪波
作者单位:南京农业大学无锡渔业学院;中国水产科学研究院淡水渔业研究中心 中国水产科学研究院内陆渔业生态环境与资源重点开放实验室;南京农业大学无锡渔业学院;中国水产科学研究院淡水渔业研究中心 中国水产科学研究院内陆渔业生态环境与资源重点开放实验室;南京农业大学无锡渔业学院;中国水产科学研究院淡水渔业研究中心 中国水产科学研究院内陆渔业生态环境与资源重点开放实验室;中国水产科学研究院淡水渔业研究中心 中国水产科学研究院内陆渔业生态环境与资源重点开放实验室
基金项目:江苏省自然科学基金项目, BK2006030 号; 人力资源和社会保障部留学人才项目, 2-115084 号; 中国水产科学研究院内陆渔业生态环境和资源重点开放实验室开放基金课题, YZ2009-02 号; 国家自然科学基金项目, 31072214 号
摘    要:利用ND1、ITS1序列差异对采自太湖、在形态上被认为是背角无齿蚌、圆背角无齿蚌、椭圆背角无齿蚌的三种个体进行鉴定,并与从NCBI中下载到的同属不同种褶纹冠蚌的ND1、ITS1序列进行对比,分析了基于Kimura2-parameter模型参数得到的遗传距离,并构建了NJ树。结果表明,本研究中所有背角无齿蚌种间遗传距离变...

关 键 词:ND1  ITS1  背角无齿蚌  圆背角无齿蚌  椭圆背角无齿蚌  物种鉴定
收稿时间:9/7/2010 12:00:00 AM
修稿时间:2011/1/21 0:00:00

THE SPECIES IDENTIFICATION OF THREE ANODONTA WOODIANA SPECIES BASED ON SEQUENCE DIFFERENCES OF ND1 AND ITS1 GENES
ZHAO Ying,CHEN Xiu-Bao,YANG Jian and LIU Hong-Bo.THE SPECIES IDENTIFICATION OF THREE ANODONTA WOODIANA SPECIES BASED ON SEQUENCE DIFFERENCES OF ND1 AND ITS1 GENES[J].Oceanologia Et Limnologia Sinica,2011,42(4):619-624.
Authors:ZHAO Ying  CHEN Xiu-Bao  YANG Jian and LIU Hong-Bo
Institution:Wuxi Fisheries College, Nanjing Agriculture University;Key Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences;Wuxi Fisheries College, Nanjing Agriculture University;Key Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences;Wuxi Fisheries College, Nanjing Agriculture University;Key Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences;Key Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences
Abstract:Anodonta woodiana (Mollusca, Lamellibranchia, Eulamellibranchia, Unionidae, Anodontinae, Anodonta) is currently used as a sentinel species to monitor environmental contamination for the Freshwater Mussel Watch program (FMWp) in our laboratory. This unionid mussel is broadly distributed in freshwater environment of China and is traditionally divided into 3 species, A. woodiana elliptica, A. woodiana pacifica, and A. woodiana woodiana, based on the differences in shell morphology. However, the morphological features are greatly variable under different environmental conditions and hence taxonomic confusion usually exists when we use this mussel in FMWp. Trying to clarify this problem, we employed the molecular approaches, using the mitochondrial NADH dehydrogenase subunit 1 (ND1) gene and the ribosomal DNA internal transcribed spacer 1 (ITS1), to re-identify the possible taxonomic characteristics of the mussel individuals that were believed to be different species of A. woodiana, A. pacifica or A. elliptica according to morphological features. Genetic distances were calculated based on the Kimura 2-parameter model, and in turn the neighbor-joining (NJ) phylogenetic tree was constructed. For purpose of comparison, the ND1 and ITS1 sequences of Cristaria plicata from NCBI GeneBank were co-analyzed with those of the mussels in this study. The largest intraspecific genetic distances among all studied mussels were 0.087 by the ITS1 gene and 0.0082 by the ND1 gene, which were much lower than those of the interspecific distances. The phylogenetic analysis results of our study suggest that A. woodiana, A. pacifica, and A. elliptica are likely to be the same species.
Keywords:ND1    ITS1    Anodonta woodiana    Anodonta pacifica    Anodonta elliptica    Species identification
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