文献类型：期刊文献

英文题名：Diet-induced microbiome shifts of sympatric overwintering birds

作者：Li, Chao[1] Liu, Yan[2] Gong, Minghao[1] Zheng, Changming[2] Zhang, Chenglin[2] Li, Huixin[1] Wen, Wanyu[1] Wang, Yuhang[1] Liu, Gang[1]

通信作者：Liu, G[1]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing 100091, Peoples R China;[2]Beijing Zoo, Beijing Key Lab Capt Wildlife Technol, Beijing 100044, Peoples R China

年份：2021

卷号：105

期号：14-15

起止页码：5993-6005

外文期刊名：APPLIED MICROBIOLOGY AND BIOTECHNOLOGY

收录：;EI(收录号：20213510829036);Scopus(收录号：2-s2.0-85113573090);WOS:【SCI-EXPANDED(收录号:WOS:000673179900002)】；

基金：This study was funded with Fundamental Research Fund of Chinese Academy of Forestry (Grant No. CAFYBB2018QB010), and the Fundamental Research Funds for the Central Non-profit Research Institution of CAF (Grant No. CAFYBB2018GB001). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

外文关键词：Diet; Gut microbiome; Sympatric; Migratory bird; Composition and function

摘要：Gut microbiota have a significant impact on host physiology and health, and host genetics and diet are considered as two important factors, but it is difficult to discriminate the influence of each single factor (host or diet) on gut microbiota under natural conditions. Moreover, current studies of avian microbiota mainly focus on domestic or captive birds, and it is still uncertain how host and diet take part in changing avian gut microbiota composition, diversity, and function in the wild. Here, high-throughput sequencing of 16S rRNA was used to identify the gut microbiota communities for sympatric wintering Great Bustards and Common Cranes at different diets. The results showed that 8.87% operational taxonomic units (OTUs) were shared among all sampling birds; in contrast, 39.43% of Kyoto Encyclopedia of Genes and Genomes (KEGG) functional pathways were common among all individuals, indicating the existence of gut microbiota conservatism both in microbiota structure and function. Microbiota abundance and diversity differed between Great Bustards and Common Cranes in a specific wintering site, and microbiota variation was detected for the same host species under two different sites, suggesting that the change of gut microbiota was induced by both host and diet. Furthermore, we found that changes of both microbial communities and functional pathways were larger between hosts than those between diets, which revealed that host might be the dominant factor determining microbiota characteristics and function, while diet further drove the divergence of gut microbiota. Gut microbiota functions appeared to be more conserved than bacterial community structure, indicating that different bacteria may function in a similar way, while microbiota OTU diversity might not be necessarily associated with functional diversity. With diet shifting, gut microbiota changed both in terms of microbial communities and functional pathways for the sympatric birds, which implies that avian habitats and their physiological microbiota would be influenced by different farmland management regimes.