Insight into different host range of three planthoppers by transcriptomic and microbiomic analysis

Brown planthopper (BPH), white‐backed planthopper (WBPH) and small brown planthopper (SBPH), are the closely related rice pests that perform differentially on wheat plants. Using fecundity as a fitness measure, we found that SBPH well‐adapted on wheat plants, followed by WBPH, while BPH had the wors...

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Bibliographic Details
Published in:Insect molecular biology 2021-06, Vol.30 (3), p.287-296
Main Authors: Yan, X.‐T., Ye, Z.‐X., Wang, X., Zhang, C.‐X., Chen, J.‐P., Li, J.‐M., Huang, H.‐J.
Format: Article
Language:English
Subjects:
Bacteria
Comparative analysis
Detoxification
Fecundity
Fitness
Fulgoroidea
Genes
host fitness
Host plants
Host range
Laodelphax striatellus
microbiome
Nilaparvata lugens
Pests
Plant diversity
planthoppers
Proteasomes
Relative abundance
Sogatella furcifera
transcriptome
Wheat
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Summary:Brown planthopper (BPH), white‐backed planthopper (WBPH) and small brown planthopper (SBPH), are the closely related rice pests that perform differentially on wheat plants. Using fecundity as a fitness measure, we found that SBPH well‐adapted on wheat plants, followed by WBPH, while BPH had the worst performance. The transcriptomic responses of SBPH and BPH to wheat plants have been compared previously. To understand the different fitness mechanisms of three planthoppers, this study first investigated the transcriptomic responses of WBPH to rice and wheat plants. Genes involved in detoxification, transportation and proteasome were significantly enriched in WBPH in response to different diets. Moreover, comparative analysis demonstrated that most co‐regulated genes in BPH and SBPH showed different expression changes; whereas most co‐regulated genes in BPH and WBPH exhibited similar expression changes. Subsequently, this study also investigated the influences of host plants on the bacterial community of three planthoppers. The three planthoppers harboured distant diversity of bacterial communities. However, there was no dramatic change in bacterial diversity or relative abundance in planthoppers colonized on different hosts. This study illustrates generic and species‐specific changes of three rice planthoppers in response to different plants, which deepen our understanding towards the host fitness for planthopper species. The majority of co‐regulated genes changed similarly between BPH and WBPH, but reciprocally between SBPH and WBPH. No dramatic change in bacterial community when planthoppers colonized on different hosts. Host transfer frequency may account for the easier adaptation of SBPH to wheat plants than that of WBPH and BPH
ISSN:0962-1075
1365-2583
DOI:10.1111/imb.12695