Complete mitogenome sequences of four flatfishes (Pleuronectiformes) reveal a novel gene arrangement of L-strand coding genes

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	Complete mitogenome sequences of four flatfishes (Pleuronectiformes) reveal a novel gene arrangement of L-strand coding genes
	[Shi, Wei ; Wang, Zhong-Ming ; Miao, Xian-Guang ; Wang, Shu-Ying ; Kong, Xiao-Yu] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China ; [Dong, Xiao-Li] Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Peoples R China ; [Wang, Zhong-Ming] Marine Fisheries Res Inst Zhejiang, Key Lab Sustainable Utilizat Technol Res Fishery, Zhoushan 316100, Peoples R China
刊名	BMC EVOLUTIONARY BIOLOGY
	2013
卷号	13 页码:-173
ISSN号	1471-2148
通讯作者	xykong@scsio.ac.cn
中文摘要	Background: Few mitochondrial gene rearrangements are found in vertebrates and large-scale changes in these genomes occur even less frequently. It is difficult, therefore, to propose a mechanism to account for observed changes in mitogenome structure. Mitochondrial gene rearrangements are usually explained by the recombination model or tandem duplication and random loss model. Results: In this study, the complete mitochondrial genomes of four flatfishes, Crossorhombus azureus (blue flounder), Grammatobothus krempfi, Pleuronichthys cornutus, and Platichthys stellatus were determined. A striking finding is that eight genes in the C. azureus mitogenome are located in a novel position, differing from that of available vertebrate mitogenomes. Specifically, the ND6 and seven tRNA genes (the Q, A, C, Y, S1, E, P genes) encoded by the L-strand have been translocated to a position between tRNA-T and tRNA-F though the original order of the genes is maintained. Conclusions: These special features are used to suggest a mechanism for C. azureus mitogenome rearrangement. First, a dimeric molecule was formed by two monomers linked head-to-tail, then one of the two sets of promoters lost function and the genes controlled by the disabled promoters became pseudogenes, non-coding sequences, and even were lost from the genome. This study provides a new gene-rearrangement model that accounts for the events of gene-rearrangement in a vertebrate mitogenome.
学科主题	Evolutionary Biology ; Genetics & Heredity
资助信息	This work was supported by the Natural Science Foundation of China (30870283, 31071890 and 41206134). We thank Prof. Elizabeth A. De Stasio for English editorial assistance and Dr. Xiangyun Wu for his suggestions and comments.
原文出处	BIOMED CENTRAL LTD
语种	英语
WOS记录号	WOS:000323370800001
公开日期	2015-01-22
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10995]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	[Shi, Wei,Wang, Zhong-Ming,Miao, Xian-Guang,et al. Complete mitogenome sequences of four flatfishes (Pleuronectiformes) reveal a novel gene arrangement of L-strand coding genes[J]. BMC EVOLUTIONARY BIOLOGY,2013,13:-173.
APA	[Shi, Wei.,Wang, Zhong-Ming.,Miao, Xian-Guang.,Wang, Shu-Ying.,Kong, Xiao-Yu] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China.,...&[Wang, Zhong-Ming] Marine Fisheries Res Inst Zhejiang, Key Lab Sustainable Utilizat Technol Res Fishery, Zhoushan 316100, Peoples R China.(2013).Complete mitogenome sequences of four flatfishes (Pleuronectiformes) reveal a novel gene arrangement of L-strand coding genes.BMC EVOLUTIONARY BIOLOGY,13,-173.
MLA	[Shi, Wei,et al."Complete mitogenome sequences of four flatfishes (Pleuronectiformes) reveal a novel gene arrangement of L-strand coding genes".BMC EVOLUTIONARY BIOLOGY 13(2013):-173.