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- 저자 : Tingwei Cai (검색결과 2 건)
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Variation of bacterial communities in bumblebees: Transmission and regulation by mating behavior
Sik Lee Kwang,Cai Tingwei,Joo Yoon Hyung,Kyeong Yong Lee,Li Jianhong,Wan Hu,Rae Jin Byung 한국응용곤충학회 2024 Journal of Asia-Pacific Entomology Vol.27 No.3
Bumblebees, as vital pollinators, serve as ideal models for investigating the relationship between hosts and their microbiomes. Mating behavior in bumblebees may influence microbial diversity, either through sexual transmission or immunity activation. Therefore, the study of mating-induced changes in microbiomes is crucial for understanding its biological and evolutionary significance. In this study, we examined microbiomes in a community context within both the gut and reproductive organs of bumblebees, using 16S rRNA sequences. Analysis of alpha and beta diversities revealed that the bacterial microbiome in the gut exhibits lower diversity than reproductive organs, with mating exerting a significant impact on the composition of microbiota in both gut and reproductive organs. By assessing Bray–Curtis dissimilarity at the amplicon sequence variant level, we observed a reduction in the divergence of bacterial communities between queen and drone reproductive organs following mating, a phenomenon not observed in the gut. This convergence is attributed to horizontal transmission and physiological responses post-mating. Notably, one bacterial genus in the gut and 13 genera in the seminal vesicle exhibited potential for horizontal transmission. Furthermore, the core bacterium Lactobacillus is suppressed in both gut and reproductive organs post-mating, while Weissella is increased in spermathecae. Our results reveal horizontal microbiome transfer between queen and drone bumblebees.
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Yunhua Zhang,Tao Tang,Wenhao Li,Tingwei Cai,Jian Hong Li,Hu Wan 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.4
Previous studies have demonstrated that gut symbionts are involved in the detoxification metabolism of insect hosts, but the relationship between gut symbionts and host detoxification metabolism of the brown planthopper (Nilaparvata lugens, BPH) remains unclear. In the present study, an indoor population (NlIP) and a field population (NlFP) of the BPH were used to characterize the functional profiling of the gut microbiome based on 16S rDNA sequencing. The results show that the NlIP and NlFP strains of N. lugens had different symbiont compositions, and Proteobacteria, Actinobacteria, and Firmicutes were the dominate phyla, accounting for > 75% of the total symbiont compositions. Additionally, the NlIP strain had more Pantoea and Stenotrophomonas, while the NlFP strain showed a higher Wolbachia, Actinobacteria, and Herbaspirillum relative abundance. Furthermore, functional content of the metagenome predicted by PICRUSt demonstrated no significant difference in metagenomic function between the NlIP and NlFP strains in the principal component analysis (PCA), and only three types of genes, namely, genes involved with metabolic diseases, poorly characterized genes, and genes involved in circulatory systems, were different between the strains based on KEGG pathway analysis, which also speculated that gut symbionts are not directly involved in the detoxification metabolism for insecticides in the BPH. These results will be helpful for further research into the mechanisms of gut symbionts involved in detoxification metabolism in the BPH.
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