Insights into the ecology, evolution, and metabolism of the widespread Woesearchaeotal lineages.
Insights into the ecology, evolution, and metabolism of the widespread Woesearchaeotal lineages.
复制标题
深入了解广泛分布的 Woesearchaetal 谱系的生态学、进化和新陈代谢
DOI：
10.1186/s40168-018-0488-2
复制
发表时间：
2018-06-08
期刊：
影响因子：
15.5
通讯作者：
Gu JD
中科院分区：
文献类型：
--
作者：
Liu X;Li M;Castelle CJ;Probst AJ;Zhou Z;Pan J;Liu Y;Banfield JF;Gu JD
BackgroundAs最近发现的DPANN超门的成员，Woesearchaeota帐户的16 S rRNA基因序列的多样性，但他们的生态，进化和代谢仍然在很大程度上unknown.ResultsHere，我们组装了133个全球克隆库/研究和19个公开可用的基因组来配置这些模式Woesearchaeota。系统发育分析表明，这个最近发现的古菌门，这是广泛分布在不同的生境，但主要是在内陆缺氧环境中的26个亚群的高度多样性。生态格局分析和特定亚群的祖先状态重建表明，环境的富氧状态是驱动Woesearchaeota分布和进化多样性的关键因素。一个选择性分布到不同的生境和适应性殖民从缺氧到好氧的环境可以提出和支持的证据存在的铁氧还蛋白依赖的途径在基因组中只有从缺氧生境，但不是从好氧生境。代谢重建支持厌氧异养的生活方式与明显的代谢缺陷，这表明需要与其他微生物的代谢互补。不同生境的谱系丰度分布和共生网络分析证实了代谢互补，并揭示了Woesearchaeota和产甲烷菌之间潜在的互养关系，这是支持代谢建模。如果正确的话，Woesearchaeota可能会影响甲烷在内陆ecosystems.ConclusionsThe研究结果提供了一个生态和进化框架Woesearchaeota在全球范围内，并表明其潜在的生态作用，特别是在甲烷。
BackgroundAs a recently discovered member of the DPANN superphylum, Woesearchaeota account for a wide diversity of 16S rRNA gene sequences, but their ecology, evolution, and metabolism remain largely unknown.ResultsHere, we assembled 133 global clone libraries/studies and 19 publicly available genomes to profile these patterns for Woesearchaeota. Phylogenetic analysis shows a high diversity with 26 proposed subgroups for this recently discovered archaeal phylum, which are widely distributed in different biotopes but primarily in inland anoxic environments. Ecological patterns analysis and ancestor state reconstruction for specific subgroups reveal that oxic status of the environments is the key factor driving the distribution and evolutionary diversity of Woesearchaeota. A selective distribution to different biotopes and an adaptive colonization from anoxic to oxic environments can be proposed and supported by evidence of the presence of ferredoxin-dependent pathways in the genomes only from anoxic biotopes but not from oxic biotopes. Metabolic reconstructions support an anaerobic heterotrophic lifestyle with conspicuous metabolic deficiencies, suggesting the requirement for metabolic complementarity with other microbes. Both lineage abundance distribution and co-occurrence network analyses across diverse biotopes confirmed metabolic complementation and revealed a potential syntrophic relationship between Woesearchaeota and methanogens, which is supported by metabolic modeling. If correct, Woesearchaeota may impact methanogenesis in inland ecosystems.ConclusionsThe findings provide an ecological and evolutionary framework for Woesearchaeota at a global scale and indicate their potential ecological roles, especially in methanogenesis.
登录
查看更多内容
影响因子：
4.8
作者：
De'Ath, G
通讯作者：
De'Ath, G
高盐科科盐湖环境中微生物群落结构和多样性
影响因子：
2.8
作者：
Han, Rui;Zhang, Xin;Zhu, Derui
通讯作者：
Zhu, Derui
影响因子：
11
作者：
Auguet, Jean-Christophe;Barberan, Albert;Casamayor, Emilio O.
通讯作者：
Casamayor, Emilio O.
影响因子：
5.8
作者：
Kembel, Steven W.;Cowan, Peter D.;Webb, Campbell O.
通讯作者：
Webb, Campbell O.
影响因子：
5.9
作者：
FAITH, DP
通讯作者：
FAITH, DP