挖掘元基因组数据,以获得对胎盘哺乳动物肠道微生物生物合成潜力的新见解
Dini Hu1, Tongzuo Zhang2, Shunfu He3
1Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Microbiology spectrum
|August 20, 2024
概括
哺乳动物的肠道微生物含有大量的生物合成基因集群 (BGCs),产生重要的化合物. 一个新的计算工具,TaxiBGC,分析了元基因组数据,揭示了BGC及其在各种哺乳动物宿主健康中的作用.
科学领域:
- 微生物学 微生物学
- 转基因组学是指转基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 哺乳动物的肠道微生物含着具有显著代谢潜力的多种微生物.
- 这些微生物中的生物合成基因集群 (BGC) 产生了对宿主相互作用至关重要的生物活性化合物.
- 之前的研究受限于对可培养微生物的依赖,阻碍了对肠道微生物代谢的全面理解.
研究的目的:
- 在广泛的哺乳动物肠道转基因组中计算识别和表征BGC.
- 探索BGC在不同哺乳动物物种和养协会中的多样性和功能性作用.
- 为了利用TaxiBGC管道对BGC发现的元基因组数据进行公正的挖掘.
主要方法:
- 利用生物合成基因集群 (TaxiBGC) 管道的分类学引导识别.
- 分析了来自7个类别的53种哺乳动物的373个元基因组.
- 识别和分类BGC,重点是多基基 (PKs) 和非核糖体 (NRPs).
主要成果:
- 鉴定出具有代表性的BGCs,包括多基基和非核糖体,与细胞间通信和抗炎功能有关.
- 与小型哺乳动物相比,在大型食肉动物和食草动物中观察到更高的BGC的丰富性和多样性.
- 发现大型哺乳动物共享更多的BGC,而小型哺乳动物则表现出特定物种的BGC概况.
结论:
- TaxiBGC工具可以直接从元基因组数据中有效和公正地发现BGC.
- 哺乳动物肠道微生物组拥有丰富的BCCs谱,对宿主生理学有影响.
- 饮食习惯和体型影响哺乳动物肠道微生物群落内的BGC的组成和多样性.
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