Food provisioning results in functional, but not compositional, convergence of the gut microbiomes of two wild Rhinopithecus species: Evidence of functional redundancy in the gut microbiome

文献类型： 外文期刊

第一作者： Li, Hong

作者： Li, Hong;Xia, Wancai;Liu, Xingyu;Wang, Xueyu;Li, Dayong;Li, Hong;Liu, Guoqi;Chen, Hua;Zhu, Lifeng

作者机构： China West Normal Univ, Key Lab Southwest China Wildlife Resources Conser, Minist Educ, Nanchong, Sichuan, Peoples R China;Sichuan Acad Agr Sci, Hort Res Inst, Chengdu, Sichuan, Peoples R China;Mingke Biotechnol, Hangzhou, Peoples R China;Nanjing Univ Chinese Med, Sch Med & Holist Integrat Med, Nanjing 210023, Peoples R China

关键词： Convergence; Gut microbial composition and function; Functional redundancy; Artificial food provisioning; Wild Rhinopithecus population; Animal conservation

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 2022影响因子：9.8； 五年影响因子：9.6 ）

ISSN： 0048-9697

年卷期： 2023 年 858 卷

页码：

收录情况： SCI

摘要： The consumption of similar diets has led to the convergence of gut microbial compositions and functions across phylogenetically distinct animals. However, given the functional redundancy in gut microbiomes, it remains unclear whether synchrony occurs in their functions only and not in their composition, even within phylogenetically close animals consuming a similar diet. In this study, we collected fresh fecal samples from a Rhinopithecus roxellana population in April 2021 (before food provisioning) and June and December 2021 (after food provisioning) and used high-throughput sequencing methods (full-length 16S rRNA gene sequencing and metagenomes) to investigate changes in the gut microbiome due to food provisioning. Combining the results from our previous studies on a wild Rhinopithecus bieti population, we found that the artificial food provisions (e.g., apples, carrots, and peanuts) affected the gut microbiome, and synchrony occurred only in its functions and antibiotic resistance gene community in both Rhinopithecus species, reflecting its ecological functional redundancy. Given the current findings (e.g., depletion in probiotic microbes, dysbiosis in the gut microbial community, and changes in the antibiotic resistance gene profile), anthropogenic disturbances (e.g., food provisioning) would have potential negative effects on host health. Therefore, human activity in animal conservation should be rethought from the standpoint of gut microbial diversity.

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