Recent infection by Wolbachia alters microbial communities in wild Laodelphax striatellus populations
Posted on 2020-07-03 - 04:36
Abstract Background Host-associated microbial communities play an important role in the fitness of insect hosts. However, the factors shaping microbial communities in wild populations, including genetic background, ecological factors, and interactions among microbial species, remain largely unknown. Results Here, we surveyed microbial communities of the small brown planthopper (SBPH, Laodelphax striatellus) across 17 geographical populations in China and Japan by using 16S rRNA amplicon sequencing. Using structural equation models (SEM) and Mantel analyses, we show that variation in microbial community structure is likely associated with longitude, annual mean precipitation (Bio12), and mitochondrial DNA variation. However, a Wolbachia infection, which is spreading to northern populations of SBPH, seems to have a relatively greater role than abiotic factors in shaping microbial community structure, leading to sharp decreases in bacterial taxon diversity and abundance in host-associated microbial communities. Comparative RNA-Seq analyses between Wolbachia-infected and -uninfected strains indicate that the Wolbachia do not seem to alter the immune reaction of SBPH, although Wolbachia affected expression of metabolism genes. Conclusion Together, our results identify potential factors and interactions among different microbial species in the microbial communities of SBPH, which can have effects on insect physiology, ecology, and evolution. Video Abstract
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Duan, Xing-Zhi; Sun, Jing-Tao; Wang, Lin-Ting; Shu, Xiao-Han; Guo, Yan; Keiichiro, Matsukura; et al. (2020). Recent infection by Wolbachia alters microbial communities in wild Laodelphax striatellus populations. figshare. Collection. https://doi.org/10.6084/m9.figshare.c.5048594.v1
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AUTHORS (10)
XD
Xing-Zhi Duan
JS
Jing-Tao Sun
LW
Lin-Ting Wang
XS
Xiao-Han Shu
YG
Yan Guo
MK
Matsukura Keiichiro
YZ
Yu-Xi Zhu
XB
Xiao-Li Bing
AH
Ary A. Hoffmann
XH
Xiao-Yue Hong