Symbiotic Bacteria in Gills and Guts of Chinese Mitten Crab (Eriocheir sinensis) Differ from the Free-Living Bacteria in Water

• DOI: 10.1371/journal.pone.0148135
• Publication Date: 2016-01-28T18:37:05Z
• Authors: Meiling Zhang; Yuhong Sun; Liqiao Chen; Chunfang Cai; Fang Qiao; Zhenyu Du; Erchao Li
• Keywords: Chinese mitten crab; Symbiotic bacteria

Aquatic animals have a close relationship with water, but differences in their symbiotic bacteria and the bacterial composition water remains unclear. Wild or domestic Chinese mitten crabs (Eriocheir sinensis) which they live were collected from four sampling sites Jiangsu Shanghai, China. Bacterial gills guts of E. sinensis, compared by high-throughput sequencing using 16S rRNA genes. Analysis >660,000 sequences indicated that diversity was higher than guts. Tenericutes Proteobacteria dominant phyla guts, while Actinobacteria, Bacteroidetes water. Non-metric multidimensional scaling analysis microbiota gills, clearly separated into three groups, suggesting harbor more specific microbial community live. The OTUs crab gut related to Mycoplasmataceae, low abundance showing that, like mammals, body-site microbiota. Ilumatobacter Albimonas, are commonly present sediment seawater, almost absent sampled Considering sinensis bottom-dwelling crustacean mate saline behavior life cycle may play an important role shaping pattern. This study revealed between habitat, affording information on assembly factors commensal aquatic animals.