Molecular adaptation in the world's deepest-living animal: Insights from transcriptome sequencing of the hadal amphipod Hirondellea gigas
Lan, Yi1; Sun, Jin1; Tian, Renmao1; Bartlett, Douglas H.2; Li, Runsheng3; Wong, Yue Him1; Zhang, Weipeng1; Qiu, Jian-Wen3; Xu, Ting3; He, Li-Sheng4; Tabata, Harry G.1; Qian, Pei-Yuan1; Qian, Pei-Yuan(Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China)
2017-07-01
发表期刊MOLECULAR ECOLOGY
卷号26期号:14页码:3732-3743
产权排序第1完成单位 ; 第2完成单位 ; 第3完成单位 ; 第4完成单位
摘要The Challenger Deep in the Mariana Trench is the deepest point in the oceans of our planet. Understanding how animals adapt to this harsh environment characterized by high hydrostatic pressure, food limitation, dark and cold is of great scientific interest. Of the animals dwelling in the Challenger Deep, amphipods have been captured using baited traps. In this study, we sequenced the transcriptome of the amphipod Hirondellea gigas collected at a depth of 10,929 m from the East Pond of the Challenger Deep. Assembly of these sequences resulted in 133,041 contigs and 22,046 translated proteins. Functional annotation of these contigs was made using the GO and KEGG databases. Comparison of these translated proteins with those of four shallow-water amphipods revealed 10,731 gene families, of which 5659 were single-copy orthologs. Base substitution analysis on these single-copy orthologs showed that 62 genes are positively selected in H. gigas, including genes related to beta-alanine biosynthesis, energy metabolism and genetic information processing. For multiple-copy orthologous genes, gene family expansion analysis revealed that cold-inducible proteins (i.e., transcription factors II A and transcription elongation factor 1) as well as zinc finger domains are expanded in H. gigas. Overall, our results indicate that genetic adaptation to the hadal environment by H. gigas may be mediated by both gene family expansion and amino acid substitutions of specific proteins.
文章类型Article
关键词Challenger Deep Deep Sea Hydrostatic Pressure Mariana Trench Positive Selection
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1111/mec.14149
URL查看原文
收录类别SCI
语种英语
关键词[WOS]HELICASE-II GU ; HYDROSTATIC-PRESSURE ; POSITIVE SELECTION ; RNA HELICASE ; MAXIMUM-LIKELIHOOD ; HIGH-THROUGHPUT ; MARIANA TRENCH ; PROTEIN ; GENOME ; ANNOTATION
WOS类目Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号WOS:000404618000013
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/3962
专题深海科学研究部_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
通讯作者Qian, Pei-Yuan; Qian, Pei-Yuan(Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China)
作者单位1.Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China
2.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
3.Hong Kong Baptist Univ, Dept Biol, Hong Kong, Hong Kong, Peoples R China
4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China
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Lan, Yi,Sun, Jin,Tian, Renmao,et al. Molecular adaptation in the world's deepest-living animal: Insights from transcriptome sequencing of the hadal amphipod Hirondellea gigas[J]. MOLECULAR ECOLOGY,2017,26(14):3732-3743.
APA Lan, Yi.,Sun, Jin.,Tian, Renmao.,Bartlett, Douglas H..,Li, Runsheng.,...&Qian, Pei-Yuan.(2017).Molecular adaptation in the world's deepest-living animal: Insights from transcriptome sequencing of the hadal amphipod Hirondellea gigas.MOLECULAR ECOLOGY,26(14),3732-3743.
MLA Lan, Yi,et al."Molecular adaptation in the world's deepest-living animal: Insights from transcriptome sequencing of the hadal amphipod Hirondellea gigas".MOLECULAR ECOLOGY 26.14(2017):3732-3743.
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