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Alternative strategies of nutrient acquisition and energy conservation map to the biogeography of marine ammonia-oxidizing archaea.
The ISME Journal ( IF 11.0 ) Pub Date : 2020-07-07 , DOI: 10.1038/s41396-020-0710-7
Wei Qin 1 , Yue Zheng 2, 3 , Feng Zhao 2, 3 , Yulin Wang 4 , Hidetoshi Urakawa 5 , Willm Martens-Habbena 6 , Haodong Liu 7 , Xiaowu Huang 8 , Xinxu Zhang 9 , Tatsunori Nakagawa 10 , Daniel R Mende 11 , Annette Bollmann 12 , Baozhan Wang 13 , Yao Zhang 14 , Shady A Amin 15 , Jeppe L Nielsen 16 , Koji Mori 17 , Reiji Takahashi 10 , E Virginia Armbrust 1 , Mari-K H Winkler 18 , Edward F DeLong 11 , Meng Li 9 , Po-Heng Lee 8, 19 , Jizhong Zhou 20, 21, 22 , Chuanlun Zhang 7 , Tong Zhang 4 , David A Stahl 18 , Anitra E Ingalls 1
Affiliation  

Ammonia-oxidizing archaea (AOA) are among the most abundant and ubiquitous microorganisms in the ocean, exerting primary control on nitrification and nitrogen oxides emission. Although united by a common physiology of chemoautotrophic growth on ammonia, a corresponding high genomic and habitat variability suggests tremendous adaptive capacity. Here, we compared 44 diverse AOA genomes, 37 from species cultivated from samples collected across diverse geographic locations and seven assembled from metagenomic sequences from the mesopelagic to hadopelagic zones of the deep ocean. Comparative analysis identified seven major marine AOA genotypic groups having gene content correlated with their distinctive biogeographies. Phosphorus and ammonia availabilities as well as hydrostatic pressure were identified as selective forces driving marine AOA genotypic and gene content variability in different oceanic regions. Notably, AOA methylphosphonate biosynthetic genes span diverse oceanic provinces, reinforcing their importance for methane production in the ocean. Together, our combined comparative physiological, genomic, and metagenomic analyses provide a comprehensive view of the biogeography of globally abundant AOA and their adaptive radiation into a vast range of marine and terrestrial habitats.



中文翻译:

养分获取和节能的替代策略可映射到海洋氨氧化古细菌的生物地理学。

氨氧化古细菌(AOA)是海洋中最丰富和普遍存在的微生物之一,主要控制硝化和氮氧化物的排放。尽管由氨的化学自养生长的共同生理学结合在一起,但相应的高基因组和生境变异性表明其巨大的适应能力。在这里,我们比较了44种不同的AOA基因组,其中37种来自于从不同地理位置收集的样本中培育的物种,还有7种是由深海的中古生代到古生代的宏基因组序列组装而成的。比较分析确定了七个主要的海洋AOA基因型群体,这些群体的基因含量与其独特的生物地理学相关。磷和氨的利用率以及静水压力被确定为驱动不同海洋区域海洋AOA基因型和基因含量变异的选择力。值得注意的是,AOA甲基膦酸甲酯的生物合成基因跨越不同的海洋省份,从而增强了它们在海洋甲烷生产中的重要性。我们共同进行的比较性生理,基因组和宏基因组分析相结合,提供了全球丰富的AOA及其向广阔的海洋和陆地生境的适应性辐射的生物地理的全面视图。

更新日期:2020-07-07
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