Journal
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
Volume 100, Issue 8, Pages 3577-3586Publisher
SPRINGER
DOI: 10.1007/s00253-015-7257-y
Keywords
Dhole (Cuon alpinus); Fecalmicrobes; 16S rRNA; Illumina MiSeq sequencing
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Funding
- Special Fund for Forest Scientific Research in the Public Welfare [201404420]
- National Natural Science Fund of China [31372220, 31172119]
- Natural Science Fund of Shandong Province of China [ZR2011CM009]
- Ph.D. Programs Foundation of Ministry of Education of China [20113705110001]
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Intestinal microbes are part of a complex ecosystem. They have a mutual relationship with the host and play an essential role in maintaining the host's health. To optimize the feeding strategies and improve the health status of the dhole, which is an endangered species, we analyzed the structure of fecal microbes in four captive dholes using high-throughput Illumina sequencing targeting the V3-V4 region of the 16S rRNA gene. The diversity indexes and rarefaction curves indicated high microbial diversity in the intestines of the four dholes. The average number of operational taxonomical units (OTUs) in the four samples was 1196, but the number of OTUs common to all libraries was 126, suggesting only a few dominant species. Phylogenetic analysis identified 19 prokaryotic phyla from the 16S rRNA gene sequences, of which only 5 phyla were core microbiota: Bacteroidetes (21.63-38.97 %), Firmicutes (20.97-44.01 %), Proteobacteria (9.33-17.60 %), Fusobacteria (9.11-17.90 %), and Actinobacteria (1.22-2.87 %). These five phyla accounted for 97 % of the bacteria in all the dholes apart from one, in which 78% of the bacteria were from these phyla. The results of our study provide an effective theoretical basis from which to reach an understanding of the biological mechanisms relevant to the protection of this endangered species.
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