First Glimpse of Gut Microbiota of Quarantine Insects in China |
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Institution: | 1. Institute of Plant Quarantine, Chinese Academy of Inspection and Quarantine, Beijing 100176, China;2. Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, China;3. Computational Virology Group, Center for Bacteria and Virus Resources and Bioinformation, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China;4. CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China;5. Computational Genomics Lab, Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing 102206, China;6. University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract: | Quarantine insects are economically important pests that frequently invade new habitats. A rapid and accurate monitoring method to trace the geographical sources of invaders is required for their prevention, detection, and eradication. Current methods based on genetics are typically time-consuming. Here, we developed a novel tracing method based on insect gut microbiota. The source location of the insect gut microbiota can be used to rapidly determine the geographical origin of the insect. We analyzed 179 gut microbiota samples from 591 individuals of 22 quarantine insect species collected from 36 regions in China. The gut microbiota of these insects primarily included Actinobacteria, Bacteroidetes, Cyanobacteria, Firmicutes, Proteobacteria, and Tenericutes. The diversity of the insect gut microbiota was closely associated with geographical and environmental factors. Different insect species could be distinguished based on the composition of gut microbiota at the phylum level. Populations of individual insect species from different regions could be distinguished based on the composition of gut microbiota at the phylum, class, and order levels. A method for determining the geographical origins of invasive insect species has been established; however, its practical application requires further investigations before implementation. |
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Keywords: | Quarantine insect Geographical origin 16S rRNA Gut microbiota Genus level |
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