Early genome erosion and internal phage-symbiont-host interaction in the endosymbionts of a cold-seep tubeworm | |
Zhao-Ming Gao5,6; Ting Xu1,4; Hua-Guan Chen6,7; Rui Lu6,7; Jun Tao8; Hong-Bin Wang8; Jian-Wen Qiu1,2; Yong Wang3,5,6 | |
刊名 | iScience |
2023-06 | |
卷号 | 26期号:7页码:107033 |
DOI | 10.1016/j.isci.2023.107033 |
通讯作者 | Jian-Wen Qiu ; Yong Wang |
英文摘要 | Endosymbiosis with chemosynthetic Gammaproteobacteria is widely recognized as an adaptive mechanism of siboglinid tubeworms, yet evolution of these endosymbionts and their driving forces remain elusive. Here, we report a finished endosymbiont genome (HMS1) of the cold-seep tubeworm Sclerolinum annulatum. The HMS1 genome is small in size, with abundant prophages and transposable elements but lacking gene sets coding for denitrification, hydrogen oxidization, oxidative phosphorylation, vitamin biosynthesis, cell pH and/or sodium homeostasis, environmental sensing, and motility, indicative of early genome erosion and adaptive evolution toward obligate endosymbiosis. Unexpectedly, a prophage embedded in the HMS1 genome undergoes lytic cycle. Highly expressed ROS scavenger and LexA repressor genes indicate that the tubeworm host likely activates the lysogenic phage into lytic cycle through the SOS response to regulate endosymbiont population and harvest nutrients. Our findings indicate progressive evolution of Sclerolinum endosymbionts toward obligate endosymbiosis and expand the knowledge about phage-symbiont-host interaction in deep-sea tubeworms. |
语种 | 英语 |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.idsse.ac.cn/handle/183446/10275] |
专题 | 深海科学研究部_深海生物学研究室_海洋微生物宏基因组与分子进化研究组 |
通讯作者 | Jian-Wen Qiu; Yong Wang |
作者单位 | 1.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 2.Department of Biology, Hong Kong Baptist University 3.Institute for Marine Engineering, Shenzhen International Graduate School, Tsinghua University 4.Department of Ocean Science, The Hong Kong University of Science and Technology 5.HKUST-CAS Sanya Joint Laboratory of Marine Science Research, Chinese Academy of Sciences 6.Institute of Deep Sea Science and Engineering, Chinese Academy of Sciences 7.University of Chinese Academy of Sciences 8.MLR Key Laboratory of Marine Mineral Resources, Guangzhou Marine Geological Survey, China Geological Survey |
推荐引用方式 GB/T 7714 | Zhao-Ming Gao,Ting Xu,Hua-Guan Chen,et al. Early genome erosion and internal phage-symbiont-host interaction in the endosymbionts of a cold-seep tubeworm[J]. iScience,2023,26(7):107033. |
APA | Zhao-Ming Gao.,Ting Xu.,Hua-Guan Chen.,Rui Lu.,Jun Tao.,...&Yong Wang.(2023).Early genome erosion and internal phage-symbiont-host interaction in the endosymbionts of a cold-seep tubeworm.iScience,26(7),107033. |
MLA | Zhao-Ming Gao,et al."Early genome erosion and internal phage-symbiont-host interaction in the endosymbionts of a cold-seep tubeworm".iScience 26.7(2023):107033. |
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