A novel model of double replications and random loss accounts for rearrangements in the Mitogenome of Samariscus latus (Teleostei: Pleuronectiformes)
Shi, W; Miao, XG; Kong, XY; xykong@scsio.ac.cn
2014
发表期刊BMC GENOMICS
ISSN1471-2164
卷号15页码:-352
摘要Background: Although more than one thousand complete mitochondrial DNA (mtDNA) sequences have been determined in teleostean fishes, only a few gene rearrangements have been observed, and genome-scale rearrangements are even rarer. However, flatfishes (Pleuronectiformes) have been identified as having diverse types of mitochondrial gene rearrangements. It has been reported that tongue soles and the blue flounder mitogenomes exhibit different types of large-scale gene rearrangements. Results: In the present study, the complete mitochondrial genome of another flatfish, Samariscus latus, was sequenced, and genome-scale rearrangements were observed. The genomic features of this flounder are different from those of any other studied vertebrates, including flatfish species too. The mitogenome of S. latus is characterized by the duplication and translocation of the control region (CR). The genes located between the two CRs are divided into two clusters in which their relative orders are maintained. Conclusions: We propose a "Double Replications and Random Loss" model to explain the rearrangement events in S. latus mitogenome. This model consists of the following steps. First, the CR was duplicated and translocated. Subsequently, double replications of the mitogenome were successively initiated from the two CRs, leading to the duplication of the genes between the two CRs. Finally, one of each pair of duplicated genes was lost in a random event.
部门归属[Shi, Wei ; Miao, Xian-Guang ; Kong, Xiao-Yu] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
关键词Flatfish Flounder Mitochondrial Recombination Gene Order Molecular Rvolution
学科领域Biotechnology & Applied Microbiology ; Genetics & Heredity
资助者Natural Science Foundation of China [30870283, 31071890, 41206134] ; Natural Science Foundation of China [30870283, 31071890, 41206134] ; Natural Science Foundation of China [30870283, 31071890, 41206134] ; Natural Science Foundation of China [30870283, 31071890, 41206134]
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收录类别sci
资助项目LMB
资助者Natural Science Foundation of China [30870283, 31071890, 41206134] ; Natural Science Foundation of China [30870283, 31071890, 41206134] ; Natural Science Foundation of China [30870283, 31071890, 41206134] ; Natural Science Foundation of China [30870283, 31071890, 41206134]
WOS记录号WOS:000336066900002
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被引频次:11[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/344004/10439
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xykong@scsio.ac.cn
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Shi, W,Miao, XG,Kong, XY,et al. A novel model of double replications and random loss accounts for rearrangements in the Mitogenome of Samariscus latus (Teleostei: Pleuronectiformes)[J]. BMC GENOMICS,2014,15:-352.
APA Shi, W,Miao, XG,Kong, XY,&xykong@scsio.ac.cn.(2014).A novel model of double replications and random loss accounts for rearrangements in the Mitogenome of Samariscus latus (Teleostei: Pleuronectiformes).BMC GENOMICS,15,-352.
MLA Shi, W,et al."A novel model of double replications and random loss accounts for rearrangements in the Mitogenome of Samariscus latus (Teleostei: Pleuronectiformes)".BMC GENOMICS 15(2014):-352.
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