Characterization of the mitochondrial genome of an ancient amphipod Halice sp. MT-2017 (Pardaliscidae) from 10,908 m in the Mariana Trench
Li, Jun-yuan1,2; Zeng, Cong1,3; Yan, Guo-yong1,2; He, Li-sheng1
2019-02-22
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume9Pages:15
AbstractSmall amphipods (Halice sp. MT-2017) with body length <1 cm were collected from the Challenger Deep (similar to 10,920 m below sea level). The divergence time of their lineage was approximately 109 Mya, making this group ancient compared to others under study. The mitochondria! genome of Halice sp. shared the usual gene components of metazoans, comprising 13 protein coding genes (PCGs), 22 transfer RNAs (tRNAs), and 2 ribosomal RNAs (rRNAs). The arrangement of these genes, however, differed greatly from that of other amphipods. Of the 15 genes that were rearranged with respect to the pancrustacean gene pattern, 12 genes (2 PCGs, 2 rRNAs, and 8 tRNAs) were both translocated and strand-reversed. In contrast, the mitochondrial genomes in other amphipods never show so many reordered genes, and in most instances, only tRNAs were involved in strand-reversion-coupled translocation. Other characteristics, including reversed strand nucleotide composition bias, relatively higher composition of non-polar amino acids, and lower evolutionary rate, were also identified. Interestingly, the latter two features were shared with another hadal amphipod, Hirondellea gigas, suggesting their possible associations with the adaptation to deep-sea extreme habitats. Overall, our data provided a useful resource for future studies on the evolutionary and adaptive mechanisms of hadal faunas.
DOI10.1038/s41598-019-38735-z
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Science ; Key Research and Development Project of Hainan Province ; Key R&D Program of China ; Hundred Talent Program of the Chinese Academy of Sciences
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Science[XDB06010103] ; Key Research and Development Project of Hainan Province[ZDYF2017169] ; Key R&D Program of China[2018YFC0309804] ; Hundred Talent Program of the Chinese Academy of Sciences[SIDSSE-BR-201302]
WOS KeywordSYNONYMOUS CODON USAGE ; TRANSFER-RNA GENES ; SCAVENGING AMPHIPODS ; SEQUENCE EVOLUTION ; DNA SEQUENCE ; CRUSTACEA ; PROTEIN ; ORDER ; PATTERNS ; REARRANGEMENT
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000459399400079
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/6548
Collection深海科学研究部_深海生物学研究室_深海生物蛋白质组学及分子生物学研究组
深海科学研究部
Corresponding AuthorHe, Li-sheng
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Hunan Agr Univ, Changsha, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Li, Jun-yuan,Zeng, Cong,Yan, Guo-yong,et al. Characterization of the mitochondrial genome of an ancient amphipod Halice sp. MT-2017 (Pardaliscidae) from 10,908 m in the Mariana Trench[J]. SCIENTIFIC REPORTS,2019,9:15.
APA Li, Jun-yuan,Zeng, Cong,Yan, Guo-yong,&He, Li-sheng.(2019).Characterization of the mitochondrial genome of an ancient amphipod Halice sp. MT-2017 (Pardaliscidae) from 10,908 m in the Mariana Trench.SCIENTIFIC REPORTS,9,15.
MLA Li, Jun-yuan,et al."Characterization of the mitochondrial genome of an ancient amphipod Halice sp. MT-2017 (Pardaliscidae) from 10,908 m in the Mariana Trench".SCIENTIFIC REPORTS 9(2019):15.
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