Positive selection analysis reveals the deep-sea adaptation of a hadal sea cucumber (Paelopatides sp.) to the Mariana Trench
文献类型：期刊论文
| 作者 | Liu, Ruoyu1,2 ; Liu, Jun1; Zhang, Haibin1
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| 刊名 | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 39期号:1页码:266-281 |
| ISSN号 | 2096-5508 |
| 关键词 | sea cucumber Mariana Trench deep-sea adaptation positive selection analysis translucent white body ossicle degeneration |
| DOI | 10.1007/s00343-020-0241-0 |
| 英文摘要 | The Mariana Trench, the deepest trench on the earth, is ideal for deep-sea adaptation research due to its unique characters, such as the highest hydrostatic pressure on the Earth, constant ice-cold temperature, and eternal darkness. In this study, tissues of a the hadal holothurian (Paelopatides sp.) were fixed with RNA later in situ at ~6 501-m depth in the Mariana Trench, which, to our knowledge, is the deepest in-situ fixed animal sample. A high-quality transcript was obtained by de-novo transcriptome assembly. A maximum likelihood tree was constructed based on the single copy orthologs across nine species with their available omics data. To investigate deep-sea adaptation, 113 positively selected genes (PSGs) were identified in Paelopatides sp. Some PSGs such as microphthalmia-associated transcription factor (MITF) may contribute to the distinct phenotype of Paelopatides sp., including its translucent white body and degenerated ossicles. At least eight PSGs (transcription factor 7-like 2 [TCF7L2], ETS-related transcription factor Elf-2-like [ELF2], PERQ amino acid-rich with GYF domain-containing protein [GIGYF], cytochrome c oxidase subunit 7a, [COX7A], type I thyroxine 5 '-deiodinase [DIO1], translation factor GUF1 [GUF1], SWI/SNF related-matrix-associated actin-dependent regulator of chromatin subfamily C and subfamily E, member 1 [SMARCC] and [SMARCE1]) might be related to cold adaptation. In addition, at least nine PSGs (cell cycle checkpoint control protein [RAD9A], replication factor A3 [RPA3], DNA-directed RNA polymerases I/II/III subunit RPABC1 [POLR2E], putative TAR DNA-binding protein 43 isoform X2 [TARDBP], ribonucleoside-diphosphate reductase subunit M1 [RRM1], putative serine/threonine-protein kinase [SMG1], transcriptional regulator [ATRX], alkylated DNA repair protein alkB homolog 6 [ALKBH6], and PLAC8 motif-containing protein [PLAC8]) may facilitate the repair of DNA damage induced by the high hydrostatic pressure, coldness, and high concentration of cadmium in the upper Mariana Trench. |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000627817300021 |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/8572]  |
| 专题 | 研究生部 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 |
| 通讯作者 | Zhang, Haibin |
| 作者单位 | 1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Ruoyu,Liu, Jun,Zhang, Haibin. Positive selection analysis reveals the deep-sea adaptation of a hadal sea cucumber (Paelopatides sp.) to the Mariana Trench[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021,39(1):266-281. |
| APA | Liu, Ruoyu,Liu, Jun,&Zhang, Haibin.(2021).Positive selection analysis reveals the deep-sea adaptation of a hadal sea cucumber (Paelopatides sp.) to the Mariana Trench.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,39(1),266-281. |
| MLA | Liu, Ruoyu,et al."Positive selection analysis reveals the deep-sea adaptation of a hadal sea cucumber (Paelopatides sp.) to the Mariana Trench".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 39.1(2021):266-281. |
入库方式： OAI收割
来源：深海科学与工程研究所
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