Chemical polymorphism regulates the attractiveness to nymphs in the bean bug Riptortus pedestris

Xu, Hao; Zhao, Jiajia; Li, Faqian; Yan, Qi; Ling, Meng; Li, Baoping

doi:10.1007/s10340-020-01268-w

Cited by 11 publications

(19 citation statements)

References 49 publications

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“…Therefore, to find better target genes to control Hemiptera pests, it is necessary to understand the mechanisms underlying the interaction between Hemiptera OBPs and host volatiles in more depth. R. pedestris is a notorious soybean pest in Asia and has now become an important destructive agent in the soybean industry in China (Li et al, 2019; Xu et al, 2021). However, the olfactory mechanism that enables recognition of soybean volatiles by this insect is still unclear.…”

Section: Discussionmentioning

confidence: 99%

Binding properties of odorant‐binding protein 4 from bean bug Riptortus pedestris to soybean volatiles

Zhu

Liu

et al. 2022

Insect Molecular Biology

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The bean bug Riptortus pedestris is a notorious insect pest that can damage various crops, especially soybean, in East Asia. In insects, the olfactory system plays a crucial role in host finding and feeding behaviour in which the odorant‐binding proteins (OBPs) are believed to be involved in initial step in this system. In this study, we produced the R. pedestris adult antennae‐expressed RpedOBP4 protein using a recombinant expression system in E. coli. Fluorescence competitive binding confirmed that RpedOBP4 has binding affinities to 7 of 20 soybean volatiles (ligands), and that a neutral condition is the best environment for it. The binding property of RpedOBP4 to these ligands was further revealed by integrating data from molecular docking, site‐directed mutagenesis and ligand binding assays. This demonstrated that five amino acid residues (I30, L33, Y47, I57 and Y121) are involved in the binding process of RpedOBP4 to corresponding ligands. These findings will not only help us to more thoroughly explore the olfactory mechanism of R. pedestris during feeding on soybean, but also lead to the identification of key candidate targets for developing environmental and efficient behaviour inhibitors to prevent population expansion of R. pedestris in the future.

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Section: Discussionmentioning

confidence: 99%

Binding properties of odorant‐binding protein 4 from bean bug Riptortus pedestris to soybean volatiles

Zhu

Liu

et al. 2022

Insect Molecular Biology

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“…Male R. pedestris migrate to soybean fields earlier than females during the flowering period, and then they will release pheromone and possibly induce plants to release volatiles for attracting females and nymphs (Endo et al, 2011;Xu et al, 2021). The release of male pheromone is stimulated by feeding (Morishima et al, 2005).…”

Section: Different Number Of Salivary Proteins Found In Males Females and Nymphsmentioning

confidence: 99%

“…Very recently, the genome of R. pedestris was assembled (Huang et al, 2021b), which provides an important dataset in analyzing the functions of their genes. The pest invades soybean fields during flowering period and causes severe damage to soybeans by sucking pods (Endo et al, 2011;Xu et al, 2021). Severely damaged plants stay green in the stem and leaf in late autumn (Li et al, 2019), indicating that the salivary proteins of R. pedestris have possibly changed the plant development.…”

Section: Introductionmentioning

confidence: 99%

Screening Candidate Effectors of the Bean Bug Riptortus pedestris by Proteomic and Transcriptomic Analyses

Liu

Rao

et al. 2021

Front. Ecol. Evol.

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The damage of Riptortus pedestris is exceptional by leading soybean plants to keep green in late autumn. Identification of the salivary proteins is essential to understand how the pest-plant interaction occurs. Here, we have tried to identify them by a combination of proteomic and transcriptomic analyses. The transcriptomes of salivary glands from R. pedestris males, females and nymphs showed about 28,000 unigenes, in which about 40% had open reading frames (ORFs). Therefore, the predicted proteins in the transcriptomes with secretion signals were obtained. Many of the top 1,000 expressed transcripts were involved in protein biosynthesis and transport, suggesting that the salivary glands produce a rich repertoire of proteins. In addition, saliva of R. pedestris males, females and nymphs was collected and proteins inside were identified. In total, 155, 20, and 11 proteins were, respectively, found in their saliva. We have tested the tissue-specific expression of 68 genes that are likely to be effectors, either because they are homologs of reported effectors of other sap-feeding arthropods, or because they are within the top 1,000 expressed genes or found in the salivary proteomes. Their potential functions in regulating plant defenses were discussed. The datasets reported here represent the first step in identifying effectors of R. pedestris.

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“…[20][21][22][23][24] Assessing the distribution pattern of suitable habitats of potential and known pests can provide vital references for policymaking to manage and control them, and in this field, SDM has been widely applied to predict the potential distribution of pest species and to identify factors shaping their distribution pattern. [25][26][27] Although intense attention has been given to R. pedestris in recent years, most studies on this pest have focused on population dynamics and damage to soybean, 9,28,29 chemical ecology, 11,29,30 genomics and molecular biology, 8,31,32 and insecticide resistance and gut symbionts. 33,34 No investigation on the potential distribution of R. pedestris has been conducted to date, and the effects of ecological and anthropogenic factors on the distribution pattern of this important pest remain unknown, which greatly impedes the prevention and control of this pest.…”

Section: Introductionmentioning

confidence: 99%

Modelling the current and future potential distribution of the bean bug Riptortus pedestris with increasingly serious damage to soybean

Zhang

Wang

et al. 2022

Pest Management Science

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BACKGROUND: The bean bug, Riptortus pedestris, has received intense attention in recent years because of its involvement in increasing outbreaks of staygreen syndrome in soybean (Glycine max (L.)), often causing almost 100% loss of soybean yield in China. However, for this pest of great economic importance, potential current and future distribution patterns and their underlying driving factors remain unclear.RESULTS: Maxent modelling under climate, elevation and land-use (including the distribution information of G. max) variables showed that the current potential distribution covered a vast geographic range, primarily including most parts of south, South East and east Asia. Under future environmental scenarios, suitable habitat expanded markedly. Areas that would become highly suitable for R. pedestris were primarily located in north-east China and west India. Five bioclimatic (BIO13, BIO08, BIO18, BIO02 and BIO07) and one land-use (C3 annual crops) predictors contributed approximately 95% to the modelling, and analyses of curve responses showed that to a certain extent, R. pedestris preferred relatively high temperature and precipitation. Our results indicate that a high risk of R. pedestris outbreaks is present in parts of Asia, especially in the soybeangrowing regions of China, and this risk will continue in the future.CONCLUSION: The predicted distribution pattern and key regulating factors identified herein could provide a vital reference for developing pest management policies and further alleviate the incidence of staygreen syndrome in soybean.

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Chemical polymorphism regulates the attractiveness to nymphs in the bean bug Riptortus pedestris

Cited by 11 publications

References 49 publications

Binding properties of odorant‐binding protein 4 from bean bug Riptortus pedestris to soybean volatiles

Binding properties of odorant‐binding protein 4 from bean bug Riptortus pedestris to soybean volatiles

Screening Candidate Effectors of the Bean Bug Riptortus pedestris by Proteomic and Transcriptomic Analyses

Modelling the current and future potential distribution of the bean bug Riptortus pedestris with increasingly serious damage to soybean

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