[Comparison on the diversity of antibiotic resistance genes of three rodent species].

Antibiotic resistance genes (ARGs) have attracted widespread attention as a new global pollutant, mainly due to the abuse of antibiotics. To investigate the diversity of ARGs in three rodent species, we used metagenomic sequencing analysis to analyze the diversity of antibiotic resistance genes of 17 individuals of and 17 individuals of collected from Mudanfeng, and nine individuals of collected from Sandaoguan. A total of 19 types and 248 subclasses of ARGs were detected in the three rodent species. Seven ARGs showed significant difference and five ARGs showed extremely significant difference between and . Seven ARGs showed significant difference and four ARGs showed extremely significant difference between and . Four ARGs showed significant difference and five ARGs showed extremely significant difference between and . ARGs showing high abundance in three rodents were macrolides, lincoamides, tetracyclines, and β-lactams. ARGs were widely distributed in the three rodent species. The significant differences in ARGs among different species might be due to the different distribution areas and their diet differentiation. The study could provide a basis for further studies of ARGs in mice and improve the understanding of the harm of ARGs transmission.