Gonadal bacterial community composition is associated with sex-specific differences in swamp eels (Monopterus albus)

• DOI: 10.3389/fimmu.2022.938326
• Publication Date: 2022-08-24T09:45:07Z
• Authors: Kaifeng Meng; Xing Lin; Hairong Liu; Huijie Chen; Fei Liu; Zhen Xu; Yonghua Sun; Daji Luo
• Keywords: Male; Mammals; 0301 basic medicine; Bacteria; Microbiota; Immunology; Ovary; RC581-607; bacterial community; Smegmamorpha; 03 medical and health sciences; RNA, Ribosomal, 16S; Animals; gonads; Female; sex-specific differences; 14. Life underwater; Immunologic diseases. Allergy; swamp eel (monopterus albus); 16S rRNA gene sequences

Organisms are colonized by microorganism communities and play a pivotal role in host function influencing physiology development. In mammals, bacterial community may alter gonadal maturation drive sex-specific differences gene expression metabolism. However, microbiota diversity the gonads of early vertebrates has not been fully elucidated. Here, we focused on swamp eel ( Monopterus albus ), which naturally undergoes sex reversal, systematically analyzed profiles between females males using 16S rRNA sequences. Specifically, microbial abundance were higher than females. Although Proteobacteria, Firmicutes, Bacteroidetes, Actinobacteria characterized as dominating phyla ovary testis, relative Firmicutes was significantly Detailed analysis revealed that Bacilli dominant bacteria ovaries Clostridium testes M. . More importantly, proposed composition distribution be linked to functional categories , especially These findings represent unique resource facilitate future research about mechanism how influence reversal vertebrates.