Effects of Binodoxys communis Gahan on Aphis gossypii Glover Lipid Synthesis

doi:10.16409/j.cnki.2095-039x.2021.03.007

Abstract

Abstract: Cotton aphid, Aphis gossypii Glover is an important pest of cotton, and the wasp, Binodoxys communis Gahan is an important naturally parasitic enemy of A. gossypii, which can effectively control the quantity of A. gossypii. It has been reported that parasitic wasps regulate the lipid anabolism of their hosts, but the changes of lipid-synthesis-related genes in the interaction between B. communis and A. gossypii are still unclear. In this study, we focused on the fatty acid synthesis pathway, the glyceride synthesis pathway, the glycolysis pathway and the amino acid metabolism pathway contained 36 genes related to the lipid synthesis of cotton aphid, and the real-time fluorescence quantitative PCR technology was used to study the transcription changes of these genes in the body of the parasitical cotton aphid. The results showed that A. gossypii parasitized by B. communis, 2 glycolysis pathway genes, 5 fatty acid synthesis pathway genes, 6 glyceride synthesis pathway genes and 5 amino acid metabolism pathway key genes were all significantly up-regulated. Among them, the expression of glycerol kinase in the glyceride synthesis pathway decreased significantly, and there was no significant change in the expression of other genes. This study clarified the influence of B. communis on lipid synthesis of A. gossypii. The results are of great theoretical and practical value for in-depth understanding of the interaction between parasitic wasps and their hosts, and guiding artificial breeding of parasitoids and pest control.

Key words: Aphis gossypii, Binodoxys communis, lipid synthesis, fluorescence quantitative PCR, pest prevention and control

CLC Number:

S476.3

XUE Hui, GAO Xueke, CHANG Guofeng, CUI Jinjie, CHEN Lizhen. Effects of Binodoxys communis Gahan on Aphis gossypii Glover Lipid Synthesis[J]. Chinese Journal of Biological Control, 2021, 37(6): 1204-1212.

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