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A novel rearrangement in the mitochondrial genome of tongue sole, Cynoglossus semilaevis: control region translocation and a tRNA gene inversion
Kong, XY; Dong, XL; Zhang, YC; Shi, W; Wang, ZM; Yu, ZN; xykong@scsio.ac.cn
2009
Source PublicationGENOME
ISSN0831-2796
Volume52Issue:12Pages:975-984
AbstractThe organization of fish mitochondrial genomes (mitogenomes) is quite conserved, usually with the heavy strand encoding 12 of 13 protein-coding genes and 14 of 22 tRNA genes, and the light strand encoding ND6 and the remaining 8 tRNA genes. Currently, there arc only a few reports on gene reorganization of fish mitogenomes, with only two types of rearrangements (shuffling and translocation) observed. No gene inversion has been detected in approximately 420 complete fish mitogenomes available so far. Here we report a novel rearrangement in the mitogenome of Cynoglossus semilaevis (Cynoglossinae, Cynoglossidae, Pleuronectiformes). The genome is 16371 bp in length and contains 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and 2 main noncoding regions, the putative control region and the light-strand replication origin. A striking finding of this study is that the tRNA(Gln) gene is translocated from the light to the heavy strand (Q inversion). This is accompanied by shuffling of the tRNA(Ile) gene and long-range translocation of the putative control region downstream to a site between NDI and the tRNA(Gln) gene. The remaining gene order is identical to that of typical Fish mitogenomes. Additionally, unique characters of this mitogenome, including a high A+T content and length variations of 8 protein-coding genes, were found through comparison of the mitogenome sequence with those from other flatfishes. All the features detected and their relationships with the rearrangements, as well as a possible rearrangement pathway, are discussed. These data provide interesting information for better understanding the molecular mechanisms of gene reorganization in fish mitogenomes.
Department[Kong, Xiaoyu; Wang, Zhongming; Yu, Ziniu] Chinese Acad Sci, S China Sea Inst Oceanol, Lab Marine Bioresource Sustainable Utilizat, Guangzhou, Guangdong, Peoples R China; [Dong, Xiaoli; Zhang, Yanchun; Shi, Wei] Ocean Univ China, Coll Fisheries, Lab Mariculture Res, Qingdao, Peoples R China
KeywordCynoglossus Semilaevis Mitogenome Sequence Trna Gene Inversion Translocation Of Control Region Gene Reorganization Flatfish
Subject AreaBiotechnology & Applied Microbiology ; Genetics & Heredity
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Indexed Bysci
Funding ProjectLMB
WOS IDWOS:000273721400001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/5028
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorxykong@scsio.ac.cn
Recommended Citation
GB/T 7714
Kong, XY,Dong, XL,Zhang, YC,et al. A novel rearrangement in the mitochondrial genome of tongue sole, Cynoglossus semilaevis: control region translocation and a tRNA gene inversion[J]. GENOME,2009,52(12):975-984.
APA Kong, XY.,Dong, XL.,Zhang, YC.,Shi, W.,Wang, ZM.,...&xykong@scsio.ac.cn.(2009).A novel rearrangement in the mitochondrial genome of tongue sole, Cynoglossus semilaevis: control region translocation and a tRNA gene inversion.GENOME,52(12),975-984.
MLA Kong, XY,et al."A novel rearrangement in the mitochondrial genome of tongue sole, Cynoglossus semilaevis: control region translocation and a tRNA gene inversion".GENOME 52.12(2009):975-984.
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