Evolution of the tRNA gene family in mitochondrial genomes of five Meretrix clams (Bivalvia, Veneridae)
Wu, XY; Xiao, S; Li, XL; Li, L; Shi, W; Yu, ZN; carlzyu@scsio.ac.cn
2014
发表期刊GENE
ISSN0378-1119
卷号533期号:1页码:439-446
摘要In contrast to the extreme conservation of nuclear-encoded tRNAs, organization of the mitochondrial (mt) tRNA gene family in invertebrates is highly dynamic and rapidly evolving. While gene duplication and loss, gene isomerism, recruitment, and rearrangements have occurred sporadically in several invertebrate lineages, little is known regarding the pattern of their evolution. Comparisons of invertebrate mt genomes at a generic level can be extremely helpful in investigating evolutionary patterns of variation, as intermediate stages of the process may be identified. Variation of mitochondrial tRNA organization among Meretrix clams provides good materials to investigate mt tRNA evolution. We characterized the complete mt genome of the lyrate Asiatic hard clam Meretrix lyrata, re-annotated tRNAs of four previously sequenced Meretrix clams, and undertook an intensive comparison of tRNA gene families in these clams. Our results 1 provide evidence that the commonly observed duplication of trnM may have occurred independently in different bivalve lineages and, based on the higher degree of trnM gene similarity, may have occurred more recently than expected; 2) suggest that "horizontal" evolution may have played an important role in tRNA gene family evolution based on frequent gene duplications and gene recruitment events; and 3) reveal the first case of isoacceptor "vertical" tRNA gene recruitment (VTGR) and present the first clear evidence that VTGR allows rapid evolution of tRNAs. We identify the trnS(-UCR) gene in Meretrix clams, previously considered missing in this lineage, and speculate that trnS(-UCR) lacking the D-arm in both M. lyrata and Meretrix lamarckii may represent the ancestral status. Phylogenetic analysis based on 13 concatenate protein-coding genes provided opportunities to detect rapidly evolved tRNA genes via VTGR and gene isomerism processes. This study suggests that evolution of the mt tRNA gene family in bivalves is more complex than previously thought and that comparison of several congeneric species is a useful strategy in investigating evolutionary patterns and dynamics of mt tRNA genes. (C) 2013 Elsevier B.V. All rights reserved.
部门归属[Wu, Xiangyun ; Xiao, Shu ; Li, Xiaoling ; Li, Lu ; Shi, Wei ; Yu, Ziniu] Chinese Acad Sci, South China Sea Inst Oceanol, Guangdong Key Lab Appl Marine Biol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China ; [Li, Xiaoling] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词Mitochondrial Genome Gene Duplication Gene Recruitment Meretrix Lyrata Trna Isomerism
学科领域Genetics & Heredity
资助者National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System ; National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System ; National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System ; National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System
URL查看原文
收录类别sci
资助项目LMB
资助者National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System ; National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System ; National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System ; National Science Foundation of China [40906077]; Knowledge Innovation Program of the Chinese Academy of Sciences [SQ200804]; earmarked fund for Modern Agro-industry Technology Research System
WOS记录号WOS:000327562700057
引用统计
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10500
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
Wu, XY,Xiao, S,Li, XL,et al. Evolution of the tRNA gene family in mitochondrial genomes of five Meretrix clams (Bivalvia, Veneridae)[J]. GENE,2014,533(1):439-446.
APA Wu, XY.,Xiao, S.,Li, XL.,Li, L.,Shi, W.,...&carlzyu@scsio.ac.cn.(2014).Evolution of the tRNA gene family in mitochondrial genomes of five Meretrix clams (Bivalvia, Veneridae).GENE,533(1),439-446.
MLA Wu, XY,et al."Evolution of the tRNA gene family in mitochondrial genomes of five Meretrix clams (Bivalvia, Veneridae)".GENE 533.1(2014):439-446.
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
Evolution of the tRN(1848KB) 开放获取CC BY-NC-SA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。