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Cytochrome P450 gene CYP6BQ8 mediates terpinen-4-ol susceptibility in the red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)

Published online by Cambridge University Press:  13 January 2023

Shanshan Gao
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
Xinlong Guo
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
Shumei Liu
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
Siying Li
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
Jiahao Zhang
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
Shuang Xue
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
Qingbo Tang
Affiliation:
Department of Entomology, College of Plant Protection, Henan Agricultural University, Zhengzhou, Henan 450002, China
Kunpeng Zhang*
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
Ruimin Li*
Affiliation:
College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, Henan 455000, China
*
Authors for correspondence: Ruimin Li, Email: liruimin920130@163.com; Kunpeng Zhang, Email: zhangkunpengag@163.com
Authors for correspondence: Ruimin Li, Email: liruimin920130@163.com; Kunpeng Zhang, Email: zhangkunpengag@163.com

Abstract

Cytochrome P450 proteins (CYPs) in insects can encode various detoxification enzymes and catabolize heterologous substances, conferring tolerance to insecticides. This study describes the identification of a P450 gene (CYP6BQ8) from Tribolium castaneum (Herbst) and investigation of its spatiotemporal expression profile and potential role in the detoxification of terpinen-4-ol, a component of plant essential oils. The developmental expression profile showed that TcCYP6BQ8 expression was relatively higher in early- and late-larval stages of T. castaneum compared with other developmental stages. Tissue expression profiles showed that TcCYP6BQ8 was mainly expressed in the head and integument of both larvae and adults. The expression profiling of TcCYP6BQ8 in developmental stages and tissues is closely related to the detoxification of heterologous substances. TcCYP6BQ8 expression was significantly induced after exposure to terpinen-4-ol, and RNA interference against TcCYP6BQ8 increased terpinen-4-ol-induced larval mortality from 47.78 to 66.67%. This indicates that TcCYP6BQ8 may be involved in T. castaneum's metabolism of terpinen-4-ol. Correlation investigation between the CYP6BQ8 gene and terpinen-4-ol resistance in T. castaneum revealed that the TcCYP6BQ8 gene was one of the factors behind T. castaneum's resistance to terpinen-4-ol. This discovery may provide a new theoretical foundation for future regulation of T. castaneum.

Information

Type
Research Paper
Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press

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