| Autor: |
Chen Gao, Yantao Liang, Yong Jiang, David Paez-Espino, Meiaoxue Han, Chengxiang Gu, Meiwen Wang, Yumei Yang, Fengjiao Liu, Qingwei Yang, Zheng Gong, Xinran Zhang, Zhixiang Luo, Hui He, Cui Guo, Hongbing Shao, Chun Zhou, Yang Shi, Yu Xin, Jinyan Xing, Xuexi Tang, Qilong Qin, Yu-Zhong Zhang, Jianfeng He, Nianzhi Jiao, Andrew McMinn, Jiwei Tian, Curtis A. Suttle, Min Wang |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
iScience, Vol 25, Iss 8, Pp 104680- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2589-0042 |
| DOI: |
10.1016/j.isci.2022.104680 |
| Popis: |
Summary: Hadal ocean biosphere, that is, the deepest part of the world’s oceans, harbors a unique microbial community, suggesting a potential uncovered co-occurring virioplankton assemblage. Herein, we reveal the unique virioplankton assemblages of the Challenger Deep, comprising 95,813 non-redundant viral contigs from the surface to the hadal zone. Almost all of the dominant viral contigs in the hadal zone were unclassified, potentially related to Alteromonadales and Oceanospirillales. 2,586 viral auxiliary metabolic genes from 132 different KEGG orthologous groups were mainly related to the carbon, nitrogen, sulfur, and arsenic metabolism. Lysogenic viral production and integrase genes were augmented in the hadal zone, suggesting the prevalence of viral lysogenic life strategy. Abundant rve genes in the hadal zone, which function as transposase in the caudoviruses, further suggest the prevalence of viral-mediated horizontal gene transfer. This study provides fundamental insights into the virioplankton assemblages of the hadal zone, reinforcing the necessity of incorporating virioplankton into the hadal biogeochemical cycles. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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