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Risk assessment, fitness cost and transcriptome analysis of cyantraniliprole resistance in Spodoptera frugiperda.

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Bibliographic Details
Title:	Risk assessment, fitness cost and transcriptome analysis of cyantraniliprole resistance in Spodoptera frugiperda.
Authors:	Wei, Jiaping¹ (AUTHOR), Lv, Shushu¹ (AUTHOR), Guan, Daojie¹ (AUTHOR), Ge, Huichen¹ (AUTHOR), Zhou, Xiaoyang¹ (AUTHOR), Zheng, Yang¹ (AUTHOR), Qian, Kun¹ (AUTHOR), Wang, Jianjun^1,2 (AUTHOR) wangjj@yzu.edu.cn
Source:	Pesticide Biochemistry & Physiology. Aug2024, Vol. 203, pN.PAG-N.PAG. 1p.
Subject Terms:	Crop losses, Crop yields, Fall armyworm, Gene expression, Cost analysis
Abstract:	Spodoptera frugiperda is a notorious invasive pest causing substantial yield losses of crops and has developed resistance to various types of insecticides. In this study, a cyantraniliprole-resistant strain, SfCYAN-R, was obtained from a susceptible strain, SfCYAN-S, after 13 generations of selection with cyantraniliprole. The fitness cost in SfCYAN-R strain was evaluated, and the putative resistance-related genes were explored by RNA-seq analysis. The results showed that SfCYAN-R strain developed 23.97-fold resistance to cyantraniliprole with the realistic heritability of 0.127. The development time of eggs, larvae, prepupae and pupae in SfCYAN-R strain was significantly prolonged than that in SfCYAN-S strain, but no difference in pupation rate, emergence rate and female fecundity was observed between SfCYAN-R and SfCYAN-S strains. Comparative gene expression analysis between SfCYAN-R and SfCYAN-S strains identified 776 significant differentially expressed genes (DEGs), among which several DEGs associated with xenobiotic metabolism were upregulated in SfCYAN-R strain. These results provide insights into the resistance mechanisms of cyantraniliprole and would be helpful for resistance management of S. frugiperda. [Display omitted] • Continuous selection of S. frugiperda with cyantraniliprole led to a 23.97-fold resistance. • Cyantraniliprole resistant strain was characterized by developmental cost. • RNA-Seq revealed 776 DEGs between resistant and susceptible strains. • The unigenes encoding detoxification-related proteins were changed significantly. [ABSTRACT FROM AUTHOR]
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Database:	GreenFILE

Description
Abstract:	Spodoptera frugiperda is a notorious invasive pest causing substantial yield losses of crops and has developed resistance to various types of insecticides. In this study, a cyantraniliprole-resistant strain, SfCYAN-R, was obtained from a susceptible strain, SfCYAN-S, after 13 generations of selection with cyantraniliprole. The fitness cost in SfCYAN-R strain was evaluated, and the putative resistance-related genes were explored by RNA-seq analysis. The results showed that SfCYAN-R strain developed 23.97-fold resistance to cyantraniliprole with the realistic heritability of 0.127. The development time of eggs, larvae, prepupae and pupae in SfCYAN-R strain was significantly prolonged than that in SfCYAN-S strain, but no difference in pupation rate, emergence rate and female fecundity was observed between SfCYAN-R and SfCYAN-S strains. Comparative gene expression analysis between SfCYAN-R and SfCYAN-S strains identified 776 significant differentially expressed genes (DEGs), among which several DEGs associated with xenobiotic metabolism were upregulated in SfCYAN-R strain. These results provide insights into the resistance mechanisms of cyantraniliprole and would be helpful for resistance management of S. frugiperda. [Display omitted] • Continuous selection of S. frugiperda with cyantraniliprole led to a 23.97-fold resistance. • Cyantraniliprole resistant strain was characterized by developmental cost. • RNA-Seq revealed 776 DEGs between resistant and susceptible strains. • The unigenes encoding detoxification-related proteins were changed significantly. [ABSTRACT FROM AUTHOR]
ISSN:	00483575
DOI:	10.1016/j.pestbp.2024.106000