排便后的暴露会改变森林香鹿的肠道微生物群,这对保护的转基因组学有影响
Feng Jiang1,2, Haifeng Gu1,2, Pengfei Song1,2
1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, Qinghai, China.
Applied microbiology and biotechnology
|February 2, 2026
概括
便微生物群的多样性和稳定性在临灭绝的森林香鹿下降随着长时间的储存. 储存时间显著改变微生物组成,需要严格控制准确的微生物组研究.
科学领域:
- 保护生物学 保护生物学
- 微生物组研究的研究.
- 野生动物生态学野生动物生态学
背景情况:
- 便微生物群分析对于危物种的保护至关重要.
- 便样本存储时间对微生物数据完整性的影响尚不清楚.
- 这限制了在野生动物中进行的非侵入性微生物组研究的可靠性.
研究的目的:
- 研究存储时间对临灭绝的森林香鹿 (Moschus berezovskii) 的肠道微生物群的影响.
- 评估储存时间如何影响微生物组成,多样性和功能潜力.
- 在保护研究中建立便微生物组分析的方法标准.
主要方法:
- 来自森林香鹿的非侵入性便样本被收集并存储长达8天.
- 在Illumina MiSeq平台上的16S rRNA基因测序被用于分析肠道微生物群.
- 生物信息分析包括多样性指标,肠型确定和社区集会分析.
主要成果:
- 随着储存时间的推移,微生物组成发生了显著的转变,α-多样性和社区稳定性下降.
- 蛋白质细菌,特别是Acinetobacter,随着时间的推移而增加,而Firmicutes则随着时间的推移而减少.
- 社区组装过程从确定性转向随机性,表明环境干扰增加.
结论:
- 便储存时间是一个关键变量,它对危物种的肠道微生物群数据产生重大影响.
- 严格控制样本保存对于准确可靠的微生物组研究在保护中至关重要.
- 这项研究为危野生动物的非侵入性便转基因组学提供了关键的方法指导.
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