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Comparative analysis of mitochondrial genome of a deep-sea crab Chaceon granulates reveals positive selection and novel genetic features
Zhang, Bo1,2,3; Wu, Yingying1,3,4; Wang, Xin1,2; Jiang, Wei5; Yin, Jianping1,2; Lin, Qiang1,2
2020-03-01
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Volume38Issue:2Pages:427-437
Corresponding AuthorLin, Qiang(linqiang@scsio.ac.cn)
AbstractDeep-sea organisms survive in an extremely harsh environment. There must be some genetic adaptation mechanisms for them. We systematically characterized and compared the complete mitochondrial genome (mitogenome) of a deep-sea crab (Chaceon granulates) with those of shallow crabs. The mitogenome of the crab was 16 126 bp in length, and encoded 37 genes as most of a metazoan mitogenome, including 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA) genes, and 2 ribosomal RNA (rRNA) genes. The gene arrangement and orientation was conserved in the crabs. However, a unique mitogenome element regulator, the origin of light-strand replication (O-L), was firstly predicted in the present crab mitogenome. In addition, further positive selection analysis showed that two residues (33S in ND3 and 502I in ND5) in C. granulates mitogenome were positively selected, indicated the selective evolution of the deep-sea crab. Therefore, the mitogenome of deep-sea C. granulates showed a unique O-L element and positive selection. These special features would influence the mitochondrial energy metabolism, and be involved in the adaptation of deep-sea environment, such as oxygen deficits and low temperatures.
Keyworddeep-sea organisms mitochondrial genome adaptation Chaceon granulates
DOI10.1007/s00343-019-8364-x
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000522834800010
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167515
Collection中国科学院海洋研究所
Corresponding AuthorLin, Qiang
Affiliation1.Chinese Acad Sci, Key Lab Trop Marine Bioresources & Ecol, South China Sea Inst Oceanol, Guangzhou 510275, Peoples R China
2.Chinese Acad Sci, Inst South China Sea Ecol & Environm Engn, Guangzhou 510275, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Beijing Adv Sci & Innovat Ctr, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Bo,Wu, Yingying,Wang, Xin,et al. Comparative analysis of mitochondrial genome of a deep-sea crab Chaceon granulates reveals positive selection and novel genetic features[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2020,38(2):427-437.
APA Zhang, Bo,Wu, Yingying,Wang, Xin,Jiang, Wei,Yin, Jianping,&Lin, Qiang.(2020).Comparative analysis of mitochondrial genome of a deep-sea crab Chaceon granulates reveals positive selection and novel genetic features.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,38(2),427-437.
MLA Zhang, Bo,et al."Comparative analysis of mitochondrial genome of a deep-sea crab Chaceon granulates reveals positive selection and novel genetic features".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 38.2(2020):427-437.
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