Insights into Cold-Season Adaptation of Mongolian Wild Asses Revealed by Gut Microbiome Metagenomics
文献类型：期刊论文
| 作者 | Wang, Jianeng; Gu, Haifeng; Gao, Hongmei; Zhang, Tongzuo; Jiang, Feng; Song, Pengfei; Liu, Yan; Fan, Qing; Xu, Youjie; Zhang, Ruidong |
| 刊名 | MICROORGANISMS
 |
| 出版日期 | 2025 |
| 卷号 | 13期号:10 |
| 关键词 | Mongolian wild ass seasonal adaptation cold-season survival gut microbiota metagenomics trnL-based plant composition |
| 英文摘要 | The Mongolian wild ass (Equus hemionus hemionus) is a flagship species of the desert-steppe ecosystem in Asia, and understanding its strategies for coping with cold environments is vital for both revealing its survival mechanisms and informing conservation efforts. In this study, we employed metagenomic sequencing to characterize the composition and functional potential of the gut microbiota, and applied DNA metabarcoding of the chloroplast trnL (UAA) g-h fragment to analyze dietary composition, aiming to reveal seasonal variations and the interplay between dietary plant composition and gut microbial communities. In the cold season, Bacteroidota and Euryarchaeota were significantly enriched, suggesting enhanced fiber degradation and energy extraction from low-quality forage. Moreover, genera such as Bacteroides and Alistipes were also significantly enriched and associated with short-chain fatty acid (SCFA) metabolism, bile acid tolerance, and immune modulation. In the cold season, higher Simpson index values and tighter principal coordinates analysis (PCoA) clustering indicated a more diverse and stable microbiota under harsh environmental conditions, which may represent an important microecological strategy for the host to cope with extreme environments. Functional predictions based on the Kyoto Encyclopedia of Genes and Genomes (KEGG) further indicated upregulation of metabolic and signaling pathways, including ABC transporters, two-component systems, and quorum sensing, suggesting multi-level microbial responses to low temperatures and nutritional stress. trnL-based plant composition analysis indicated seasonal shifts, with Tamaricaceae detected more in the warm season and Poaceae, Chenopodiaceae, and Amaryllidaceae detected more in the cold season. Correlation analyses revealed that dominant microbial phyla were associated with the degradation of fiber, polysaccharides, and plant secondary metabolites, which may help maintain host energy and metabolic homeostasis. Despite the limited sample size and cross-sectional design, our findings highlight that gut microbial composition and structure may be important for host adaptation to cold environments and may also serve as a useful reference for future studies on the adaptive mechanisms and conservation strategies of endangered herbivores, including the Mongolian wild ass. |
| 源URL | [http://210.75.249.4/handle/363003/62347]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Jianeng,Gu, Haifeng,Gao, Hongmei,et al. Insights into Cold-Season Adaptation of Mongolian Wild Asses Revealed by Gut Microbiome Metagenomics[J]. MICROORGANISMS,2025,13(10). |
| APA | Wang, Jianeng.,Gu, Haifeng.,Gao, Hongmei.,Zhang, Tongzuo.,Jiang, Feng.,...&Zhang, Ruidong.(2025).Insights into Cold-Season Adaptation of Mongolian Wild Asses Revealed by Gut Microbiome Metagenomics.MICROORGANISMS,13(10). |
| MLA | Wang, Jianeng,et al."Insights into Cold-Season Adaptation of Mongolian Wild Asses Revealed by Gut Microbiome Metagenomics".MICROORGANISMS 13.10(2025). |
入库方式： OAI收割
来源：西北高原生物研究所
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