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| Insights into deep-sea adaptations and host-symbiont interactions: A comparative transcriptome study on Bathymodiolus mussels and their coastal relatives | |
Zheng, Ping1,2; Wang, Minxiao1,3; Li, Chaolun1,2,3,4 ; Sun, Xiaoqing5; Wang, Xiaocheng1,2; Sun, Yan1; Sun, Song1,2,4,6
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| 2017-10-01 | |
| 发表期刊 | MOLECULAR ECOLOGY
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| 卷号 | 26期号:19页码:5133-5148 |
| 文章类型 | Article |
| 摘要 | Mussels (Bivalve: Mytilidae) have adapted to various habitats, from fresh water to the deep sea. To understand their adaptive characteristics in different habitats, particularly in the bathymodiolin mussels in deep-sea chemosynthetic ecosystems, we conducted a comparative transcriptomic analysis between deep-sea bathymodiolin mussels and their shallow-water relatives. A number of gene families related to stress responses were shared across all mussels, without specific or significantly expanded families in deep-sea species, indicating that all mussels are capable of adapting to diverse harsh environments, but that different members of the same gene family may be preferentially utilized by different species. One of the most extraordinary trait of bathymodiolin mussels is their endosymbiosis. Lineage-specific and positively selected TLRs and highly expressed C1QDC proteins were identified in the gills of the bathymodiolins, suggesting their possible functions in symbiont recognition. However, pattern recognition receptors of the bathymodiolins were globally reduced, facilitating the invasion and maintenance of the symbionts obtained by either endocytosis or phagocytosis. Additionally, various transporters were positively selected or more highly expressed in the deep-sea mussels, indicating a means by which necessary materials could be provided for the symbionts. Key genes supporting lysosomal activity were also positively selected or more highly expressed in the deep-sea mussels, suggesting that nutrition fixed by the symbionts can be absorbed in a farming way wherein the symbionts are digested by lysosomes. Regulation of key physiological processes including lysosome activity, apoptosis and immune reactions is needed to maintain a stable host-symbiont relationship, but the mechanisms are still unclear. |
| 关键词 | Bathymodiolin Deep-sea Adaptation Immune Lysosome Symbiosis Transcriptome |
| DOI | 10.1111/mec.14160 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000413375500021 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/143240 |
| 专题 | 海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Deep Sea Res Ctr, Qingdao, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 5.Novogene Biotechnol, Qingdao, Peoples R China 6.Chinese Acad Sci, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Zheng, Ping,Wang, Minxiao,Li, Chaolun,et al. Insights into deep-sea adaptations and host-symbiont interactions: A comparative transcriptome study on Bathymodiolus mussels and their coastal relatives[J]. MOLECULAR ECOLOGY,2017,26(19):5133-5148. |
| APA | Zheng, Ping.,Wang, Minxiao.,Li, Chaolun.,Sun, Xiaoqing.,Wang, Xiaocheng.,...&Sun, Song.(2017).Insights into deep-sea adaptations and host-symbiont interactions: A comparative transcriptome study on Bathymodiolus mussels and their coastal relatives.MOLECULAR ECOLOGY,26(19),5133-5148. |
| MLA | Zheng, Ping,et al."Insights into deep-sea adaptations and host-symbiont interactions: A comparative transcriptome study on Bathymodiolus mussels and their coastal relatives".MOLECULAR ECOLOGY 26.19(2017):5133-5148. |
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| Insights into deep-s（1098KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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