TY - JOUR A2 - Shi, Pengjun AU - Song, Wei AU - Li, Lingzhi AU - Huang, Hongliang AU - Jiang, Keji AU - Zhang, Fengying AU - Chen, Xuezhong AU - Zhao, Ming AU - Ma, Lingbo PY - 2016 DA - 2016/11/13 TI - The Gut Microbial Community of Antarctic Fish Detected by 16S rRNA Gene Sequence Analysis SP - 3241529 VL - 2016 AB - Intestinal bacterial communities are highly relevant to the digestion, nutrition, growth, reproduction, and a range of fitness in fish, but little is known about the gut microbial community in Antarctic fish. In this study, the composition of intestinal microbial community in four species of Antarctic fish was detected based on 16S rRNA gene sequencing. As a result, 1 004 639 sequences were obtained from 13 samples identified into 36 phyla and 804 genera, in which Proteobacteria, Actinobacteria, Firmicutes, Thermi, and Bacteroidetes were the dominant phyla, and Rhodococcus, Thermus, Acinetobacter, Propionibacterium, Streptococcus, and Mycoplasma were the dominant genera. The number of common OTUs (operational taxonomic units) varied from 346 to 768, while unique OTUs varied from 84 to 694 in the four species of Antarctic fish. Moreover, intestinal bacterial communities in individuals of each species were not really similar, and those in the four species were not absolutely different, suggesting that bacterial communities might influence the physiological characteristics of Antarctic fish, and the common bacterial communities might contribute to the fish survival ability in extreme Antarctic environment, while the different ones were related to the living habits. All of these results could offer certain information for the future study of Antarctic fish physiological characteristics. SN - 2314-6133 UR - https://doi.org/10.1155/2016/3241529 DO - 10.1155/2016/3241529 JF - BioMed Research International PB - Hindawi Publishing Corporation KW - ER -