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The intestinal microbiome of an Indo-Pacific humpback dolphin (Sousa chinensis) stranded near the Pearl River Estuary, China

文献类型： 外文期刊

作者： Wan, Xiaoling 1 ; Li, Jia 1 ; Cheng, Zhaolong 1 ; Ao, Mengxue 1 ; Tian, Renmao 4 ; Mclaughlin, Richard William 1 ; Zhe 1 ;

作者机构： 1.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan, Peoples R China

2.Univ Chinese Acad Sci, Beijing, Peoples R China

3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China

4.Univ Oklahoma, Sch Civil Engn & Environm Sci, Inst Environm Genom, Dept Microbiol & Plant Biol, Norman, OK 73019 USA

5.IIT, Inst Food Safety & Hlth, Bedford Pk, IL USA

6.Gateway Tech Coll, Gen Studies, Kenosha, WI USA

关键词： 16S rRNA gene high-throughput sequencing; anthropogenic impact; cetacean; indo-pacific humpback dolphin; intestinal microbiota

期刊名称：INTEGRATIVE ZOOLOGY （ 影响因子：2.654； 五年影响因子：2.525 ）

ISSN： 1749-4877

年卷期：

页码：

收录情况： SCI

摘要： The mammalian intestinal microbiome is critical for host health and disease resistance. However, the cetacean intestinal microbiota remains relatively unexplored. By using high-throughput 16S rRNA gene sequencing, we analyzed intestinal bacterial samples from an Indo-pacific humpback dolphin (Sousa chinensis) stranded near the Pearl River Estuary in China. The samples included 3 anatomical regions (foregut, midgut, and rectum) and 2 anatomical locations (content and mucus). Our analyses revealed that the dolphin intestinal bacteria contained 139 operational taxonomic units (OTUs), dominated at the phyla level byFirmicutes(47.05% in the content; 94.77% in the mucus), followed byBacteroidetes(23.63% in the content; 1.58% in the mucus) andGammaproteobacteria(14.82% in the content; 2.05% in the mucus). The intestinal bacteria had a small core community (15 OTUs, accounting for 99.74% of the reads), some of which could be potentially pathogenic to both human and dolphins. As an alternative to sampling the dolphin intestinal bacteria, fecal sampling could be used. Additionally, function potentials such as, xenobiotics biodegradation, beta-lactam resistance, and human disease-related pathways, were detected in the dolphin intestinal bacteria. These findings provide the first baseline knowledge of the intestinal microbiome of the Indo-Pacific humpback dolphin, which may offer new insights into cetacean conservation by using microbial surveillance.

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