The functional evolution of termite gut microbiota.
The functional evolution of termite gut microbiota.
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DOI：
10.1186/s40168-022-01258-3
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发表时间：
2022-05-27
期刊：
影响因子：
15.5
通讯作者：
Bourguignon, Thomas
中科院分区：
文献类型：
--
作者：
Arora, Jigyasa;Kinjo, Yukihiro;Sobotnik, Jan;Bucek, Ales;Clitheroe, Crystal;Stiblik, Petr;Roisin, Yves;Zifcakova, Lucia;Park, Yung Chul;Kim, Ki Yoon;Sillam-Dusses, David;Herve, Vincent;Lo, Nathan;Tokuda, Gaku;Brune, Andreas;Bourguignon, Thomas
白蚁主要以木质纤维素或与特定肠道微生物相关的土壤为食。白蚁肠道微生物群的功能在少数几种食木害虫中得到了部分理解，但在其他分类群中仍基本未知。我们打算填补这一空白，并提供白蚁肠道微生物群的功能进化的全球了解。我们对代表白蚁多样性的145个样本的肠道宏基因组进行了测序。我们发现，所有白蚁的肠道菌群的原核部分具有相似的碳水化合物和氮代谢的基因，白蚁的系统发育位置和饮食的比例不同。肠道原核基因组的保守存在意味着现代白蚁的祖先具有必要的营养功能。此外，这些基因的丰度在很大程度上与宿主的生殖发育相关。最后，我们发现，一些白蚁谱系的饮食土壤的适应是伴随着重要的营养功能，而不是收购新的基因和途径的基因的化学计量的变化。我们的研究结果表明，白蚁肠道原核生物群落的组成和功能已经显着保守，因为白蚁第一次出现~ 1.5亿年前。因此，“世界上最小的生物反应器”自成立以来一直作为由白蚁，古生菌，细菌和纤维素分解鞭毛组成的多方共生体运行。视频摘要在线版本包含补充材料，可通过10. 1186/s40168-022-01258-3获取。
Termites primarily feed on lignocellulose or soil in association with specific gut microbes. The functioning of the termite gut microbiota is partly understood in a handful of wood-feeding pest species but remains largely unknown in other taxa. We intend to fill this gap and provide a global understanding of the functional evolution of termite gut microbiota. We sequenced the gut metagenomes of 145 samples representative of the termite diversity. We show that the prokaryotic fraction of the gut microbiota of all termites possesses similar genes for carbohydrate and nitrogen metabolisms, in proportions varying with termite phylogenetic position and diet. The presence of a conserved set of gut prokaryotic genes implies that essential nutritional functions were present in the ancestor of modern termites. Furthermore, the abundance of these genes largely correlated with the host phylogeny. Finally, we found that the adaptation to a diet of soil by some termite lineages was accompanied by a change in the stoichiometry of genes involved in important nutritional functions rather than by the acquisition of new genes and pathways. Our results reveal that the composition and function of termite gut prokaryotic communities have been remarkably conserved since termites first appeared ~ 150 million years ago. Therefore, the “world’s smallest bioreactor” has been operating as a multipartite symbiosis composed of termites, archaea, bacteria, and cellulolytic flagellates since its inception. Video Abstract The online version contains supplementary material available at 10.1186/s40168-022-01258-3.
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影响因子：
1.4
作者：
Apprill, Amy;McNally, Sean;Weber, Laura
通讯作者：
Weber, Laura
影响因子：
5.9
作者：
Calusinska, Magdalena;Marynowska, Martyna;Delfosse, Philippe
通讯作者：
Delfosse, Philippe
影响因子：
1.3
作者：
BIGNELL, DE;EGGLETON, P
通讯作者：
EGGLETON, P
DOI：
10.1007/978-3-319-28068-4_6
发表时间：
2016-01-01
期刊：
MECHANISTIC BENEFITS OF MICROBIAL SYMBIONTS
影响因子：
--
作者：
Bignell, David E.
通讯作者：
Bignell, David E.
影响因子：
9.2
作者：
Bourguignon, Thomas;Lo, Nathan;Evans, Theodore A.
通讯作者：
Evans, Theodore A.