Comparative studies of the complete mitochondrial genomes of four Paphia clams and reconsideration of subgenus Neotapes (Bivalvia: Veneridae)
Xu, XD; Wu, XY; Yu, ZN; carlzyu@scsio.ac.cn
2012
发表期刊GENE
ISSN0378-1119
卷号494期号:1页码:17-23
摘要The extreme variability of the mitochondrial (mito) genomes of bivalves makes it difficult to understand their evolutionary dynamics, given that species from different families do not share comparable features. We compared the mitogenomes from four Paphia clams (three of them were firstly sequenced) and found that mitogenome reorganization among the four congeneric species is not random but follows phylogenetic trends. Start/stop codon variations are species-correlated rather than gene-correlated, and bear useful phylogenetic information. Unique start/stop codon usage in P. euglypta and A+T content in P. amabilis indicates that these mitogenome-level characters, usually considered to be conservative features in other lineages, may not be phylogenetically evolved, but may have evolved via species-specific mitogenomic maintenance mechanisms. Variable divergence of two trnM genes in different lineages may demonstrate differences in mechanisms by which paralogous trnM genes are maintained. Sequence alignment analysis indicates that the VNTRs in the four mitogenomes have a common origin. The rationale of the subgenus Neotapes Kuroda and Habe, 1971 was supported by evidence from morphological characters, mitogenomic features, as well as phylogenetic analyses using cox1 and rrnS genes. The data suggest that the taxonomic basis of the subgenus should be "smooth surface" but not "undulated lines," and P. textile should be classified to the Neotapes subgenus. (C) 2011 Elsevier B.V. All rights reserved.
部门归属[Xu, Xiaodong; Wu, Xiangyun; Yu, Ziniu] Chinese Acad Sci, Key Lab Marine Bioresource Sustainable Utilizat, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
关键词Paphia Mitochondrial Genome Clam Neotapes
学科领域Genetics & Heredity
语种英语
资助项目LMB
WOS记录号WOS:000300542800003
引用统计
被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/9976
专题中科院海洋生物资源可持续利用重点实验室
通讯作者carlzyu@scsio.ac.cn
推荐引用方式
GB/T 7714
Xu, XD,Wu, XY,Yu, ZN,et al. Comparative studies of the complete mitochondrial genomes of four Paphia clams and reconsideration of subgenus Neotapes (Bivalvia: Veneridae)[J]. GENE,2012,494(1):17-23.
APA Xu, XD,Wu, XY,Yu, ZN,&carlzyu@scsio.ac.cn.(2012).Comparative studies of the complete mitochondrial genomes of four Paphia clams and reconsideration of subgenus Neotapes (Bivalvia: Veneridae).GENE,494(1),17-23.
MLA Xu, XD,et al."Comparative studies of the complete mitochondrial genomes of four Paphia clams and reconsideration of subgenus Neotapes (Bivalvia: Veneridae)".GENE 494.1(2012):17-23.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Comparative studies (1210KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。