Comparison of microbial communities in Colorado Potato Beetles (Leptinotarsa decemlineata Say)collected from different regions of China

The Colorado potato beetle (Leptinotarsa decemlineata) (CPB) is a potato pest that causes serious economic losses in Xinjiang Uygur Autonomous Region and Heilongjiang Province, China. Little is known about the influence of microorganisms in the invasion and dispersion of CPB. Microbial communities of CPB collected from nine geographic locations in China were studied by Illumina sequencing technology. A total of 383 genera were identified, including Pantoea, Lelliottia, and Enterobacter. Bacterial community diversity in CPB from Urumqi, Jimunai, and Wenquan was higher than diversity in other regions. Tsne analysis indicated that order and genus were appropriate taxonomic levels to distinguish geographical locations of CPB. These findings are helpful for understanding the roles of microorganisms in the adaptation of CBPs to newly invaded areas.