Impact of low lethal concentrations of buprofezin on biological traits and expression profile of chitin synthase 1 gene (CHS1) in melon aphid, Aphis gossypii

Author:

Ullah FarmanORCID,Gul Hina,Yousaf Hafiz Kamran,Xiu Wang,Qian Ding,Gao XiwuORCID,Tariq KaleemORCID,Han Peng,Desneux Nicolas,Song Dunlun

Abstract

Abstract Buprofezin, a chitin synthesis inhibitor that can be used for the control of hemipteran pests, especially melon aphid, Aphis gossypii. The impact of low lethal concentrations of buprofezin on the biological parameters and expression profile of CHS1 gene were estimated for two successive generations of A. gossypii. The present result shows that the LC15 and LC30 of buprofezin significantly decreased the fecundity and longevity of both generations. Exposure of F0 individuals to both concentrations delay the developmental period in F1. Furthermore, the survival rate, intrinsic rate of increase (r), finite rate of increase (λ), and net reproductive rate (R0) were reduced significantly in progeny generation at both concentrations. However, the reduction in gross reproductive rate (GRR) was observed only at LC30. Although, the mean generation time (T) prolonged substantially at LC30. Additionally, expression of the CHS1 gene was significantly increased in F0 adults. Significant increase in the relative abundance of CHS1 mRNA transcript was also observed at the juvenile and adult stages of F1 generation following exposure to LC15 and LC30. Therefore, our results show that buprofezin could affect the biological traits by diminishing the chitin contents owing to the inhibition of chitin synthase activity in the succeeding generation of melon aphid.

Funder

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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