南海冷泉768个微生物基因组序列分析

本研究对南海冷泉采集的23个样品开展了宏基因组分析，获得768个宏基因组组装基因组(MAGs)，估计完成度>60%。在MAGs中，估计有61个完成度>90%，而另外105个完成度>80%。系统基因组分析发现597个细菌MAG和171个古细菌MAG，其中几乎所有的MAG都与已知的培养菌株有远亲关系。在768个MAGs中，门水平上丰度的细菌包括Proteobacteria、Desulfobacterota、Bacteroidota、Patescibacteria和Chlorofexota，门水平上丰度的古细菌包括Asgardarchaeota、Thermoplasmatota和Thermoproteota。这些结果为进一步研究深海微生物生态学提供了一个数据集。

This study conducted metagenomic analysis on 23 samples collected from cold seeps in the South China Sea, yielding 768 metagenome-assembled genomes (MAGs) with an estimated completeness greater than 60%. Of these MAGs, 61 were estimated to exhibit a completeness >90%, while another 105 had a completeness >80%. Phylogenomic analysis identified 597 bacterial MAGs and 171 archaeal MAGs, nearly all of which are distantly related to known cultivated strains. At the phylum level, the most abundant bacterial taxa within the 768 MAGs include Proteobacteria, Desulfobacterota, Bacteroidota, Patescibacteria, and Chlorofexota, whereas the most abundant archaeal phyla are Asgardarchaeota, Thermoplasmatota, and Thermoproteota. These results provide a valuable dataset for further research on deep-sea microbial ecology.