Diversity and Genomic Characterization of a Novel Parvarchaeota Family in Acid Mine Drainage Sediments.
Diversity and Genomic Characterization of a Novel Parvarchaeota Family in Acid Mine Drainage Sediments.
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酸性矿山排水沉积物中新型短毛菌家族的多样性和基因组特征
DOI：
10.3389/fmicb.2020.612257
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发表时间：
2020
影响因子：
5.2
通讯作者：
Huang LN
中科院分区：
文献类型：
--
作者：
Luo ZH;Li Q;Lai Y;Chen H;Liao B;Huang LN
最近对来自不同环境的微生物群落进行的基因组解析的元基因组分析导致了许多新的谱系的发现，这些谱系显着扩大了古生界的系统发育广度。在这里，我们报告了一个新的古生菌家族的基因组特征，该家族基于从酸性矿山废水沉积物中提取的五个元基因组组装的基因组。系统基因组学分析将这些未开垦的古菌置于候选门Parvarchaeota的根部，该门将这个鲜为人知的门扩展为两个科。在超小基因组(估计大小为0.53-0.76Mb)中发现了与环境适应以及碳水化合物和蛋白质利用有关的基因，表明了它们在这种恶劣环境(低pH和高重金属含量)中的生存策略。检测到与硫氰酸同源的基因表明可能参与了铁循环。然而，缺乏合成氨基酸和核苷酸的能力意味着这些古菌可能从环境或其他群落成员那里获得这些生物分子。对Parvarchaeota的进化史分析表明，这两个家族的成员可以通过获得利用不同底物的潜力来扩大他们的生态位。这项研究扩大了我们对Parvarchaeota的多样性、代谢能力和进化史的了解。
Recent genome-resolved metagenomic analyses of microbial communities from diverse environments have led to the discovery of many novel lineages that significantly expand the phylogenetic breadth of Archaea. Here, we report the genomic characterization of a new archaeal family based on five metagenome-assembled genomes retrieved from acid mine drainage sediments. Phylogenomic analyses placed these uncultivated archaea at the root of the candidate phylum Parvarchaeota, which expand this lesser-known phylum into two family levels. Genes involved in environmental adaptation and carbohydrate and protein utilization were identified in the ultra-small genomes (estimated size 0.53–0.76 Mb), indicating a survival strategy in this harsh environment (low pH and high heavy metal content). The detection of genes with homology to sulfocyanin suggested a potential involvement in iron cycling. Nevertheless, the absence of the ability to synthesize amino acids and nucleotides implies that these archaea may acquire these biomolecules from the environment or other community members. Applying evolutionary history analysis to Parvarchaeota suggested that members of the two families could broaden their niches by acquiring the potentials of utilizing different substrates. This study expands our knowledge of the diversity, metabolic capacity, and evolutionary history of the Parvarchaeota.
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影响因子：
4.3
作者：
Castelle, Cindy J.;Roger, Magali;Guiral, Marianne
通讯作者：
Guiral, Marianne
影响因子：
2.8
作者：
Dopson, M;Baker-Austin, C;Bond, PL
通讯作者：
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影响因子：
15.5
作者：
Gao, Shao-Ming;Schippers, Axel;Huang, Li-Nan
通讯作者：
Huang, Li-Nan
影响因子：
64.5
作者：
Boshoff, HIM;Reed, MB;Mizrahi, V
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Mizrahi, V
小古菌 Micrarchaeota 和 Parvarchaeota 的代谢多样性
影响因子：
11
作者：
Chen, Lin-Xing;Mendez-Garcia, Celia;Shu, Wen-Sheng
通讯作者：
Shu, Wen-Sheng