Journal
MOLECULAR GENETICS AND GENOMICS
Volume 292, Issue 2, Pages 407-414Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00438-016-1282-0
Keywords
Gut microbiota; Asiatic black bear; Microbial diversity; High-throughput sequencing
Funding
- National Science and Technology Major Projects for Major New Drugs Innovation and Development [2014ZX09301306-007]
- Natural Science Foundation Project of CQ CSTC [cstc2015jcyjA10094]
- Visiting Scholar Foundation of the Key Laboratory of Biorheological Science and Technology (Chongqing University)
- Ministry of Education [CQKLBST-2012-007]
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The Asiatic black bear (Ursus thibetanus) is a protected species from eastern Asia. In China, the Asiatic black bear occurs in 17 provinces from northeast to southwest regions. To date, information on microbial diversity in the gut of the Asiatic black bears from different populations remains limited. To determine the species composition and community structure of the gut microbiota in the Asiatic black bear, we characterized 36 fecal samples from Sichuan, Yunnan, and Heilongjiang provinces, China, by pyrosequencing the 16S V3-V4 hypervariable regions using the Illumina Miseq platform. Results showed that Firmicutes and Proteobacteria were the predominant phyla in the samples, which were largely comprised Escherichia-Shigella, Peptostreptococcaceae_incertae_sedis, Turicibacter, Streptococcus, and Clostridium. By analyzing the community structure from these 36 samples, we found that there were significant differences in the species diversity and richness between Sichuan, Yunnan, and Heilongjiang populations. In conclusion, our results reveal the species composition and structure of the gut microbiota in captive black bears in China, and suggest that biogeography could affect the black bear' gut microbiota.
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