Complete mitochondrial genome of Benthodytes marianensis (Holothuroidea: Elasipodida: Psychropotidae): Insight into deep sea adaptation in the sea cucumber
Mu, Wendan1,2; Liu, Jun1; Zhang, Haibin1
2018-11-30
Source PublicationPLOS ONE
ISSN1932-6203
Volume13Issue:11Pages:17
AbstractComplete mitochondrial genomes play important roles in studying genome evolution, phylogenetic relationships, and species identification. Sea cucumbers (Holothuroidea) are ecologically important and diverse members, living from the shallow waters to the hadal trench. In this study, we present the mitochondrial genome sequence of the sea cucumber Bentho-dytes marianensis collected from the Mariana Trench. To our knowledge, this is the first reported mitochondrial genome from the genus Benthodytes. This complete mitochondrial genome is 17567 bp in length and consists of 13 protein-coding genes, two ribosomal RNA genes and 22 transfer RNA genes (duplication of two tRNAs: trnL and trnS). Most of these genes are coded on the positive strand except for one protein-coding gene (nad6) and five tRNA genes which are coded on the negative strand. Two putative control regions (CRs) have been found in the B. marianensis mitogenome. We compared the order of genes from the 10 available holothurian mitogenomes and found a novel gene arrangement in B. marianensis. Phylogenetic analysis revealed that B. marianensis clustered with Peniagone sp. YYH-2013, forming the deep-sea Elasipodida clade. Positive selection analysis showed that eleven residues (24 S, 45 S, 185 S, 201 G, 211 F and 313 N in nad2; 108 S, 114 S, 322 C, 400 T and 427 S in nad4) were positively selected sites with high posterior probabilities. We predict that nad2 and nad4 may be the important candidate genes for the further investigation of the adaptation of B. marianensis to the deep-sea environment.
DOI10.1371/journal.pone.0208051
Funding OrganizationNational Key Research and Development Program of China ; Sanya Key Laboratory Program ; National Natural Science Foundation of China ; Hundred Talents Program of CAS
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFC0306600] ; Sanya Key Laboratory Program[L1501] ; National Natural Science Foundation of China[41576127] ; Hundred Talents Program of CAS[SIDSSE-BR-201401]
WOS KeywordCOMPLETE NUCLEOTIDE-SEQUENCE ; HIGH-ALTITUDE ADAPTATION ; CYTOCHROME-C-OXIDASE ; DNA-SEQUENCE ; PHYLOGENETIC-RELATIONSHIPS ; CONCERTED EVOLUTION ; GENE ORGANIZATION ; CONTROL REGIONS ; ARRANGEMENT ; SELECTION
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000451883700020
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/6400
Collection深海科学研究部_深海生物学研究室_海洋生物生态与进化研究组
Corresponding AuthorZhang, Haibin
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
First Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Corresponding Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Recommended Citation
GB/T 7714
Mu, Wendan,Liu, Jun,Zhang, Haibin. Complete mitochondrial genome of Benthodytes marianensis (Holothuroidea: Elasipodida: Psychropotidae): Insight into deep sea adaptation in the sea cucumber[J]. PLOS ONE,2018,13(11):17.
APA Mu, Wendan,Liu, Jun,&Zhang, Haibin.(2018).Complete mitochondrial genome of Benthodytes marianensis (Holothuroidea: Elasipodida: Psychropotidae): Insight into deep sea adaptation in the sea cucumber.PLOS ONE,13(11),17.
MLA Mu, Wendan,et al."Complete mitochondrial genome of Benthodytes marianensis (Holothuroidea: Elasipodida: Psychropotidae): Insight into deep sea adaptation in the sea cucumber".PLOS ONE 13.11(2018):17.
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