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Article

Unveiling the Role of Two Rhodopsin-like GPCR Genes in Insecticide-Resistant House Flies, Musca domestica

by
Juanjuan Xin
†,
Dylan Brown
,
Yifan Wang
,
Xin Wang
,
Ming Li
‡,
Ting Li
§ and
Nannan Liu
*
Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
*
Author to whom correspondence should be addressed.
†
Current Address: Haidian District Center for Disease Prevention and Control, Beijing 102206, China.
‡
Current Address: Zhongshang School of Medicine, Sun Yat-Sen University, Guangzhou 102206, China.
§
Current Address: Department of Biological Sciences, Alabama State University, Montgomery, AL 36101, USA.
Int. J. Mol. Sci. 2024, 25(19), 10618; https://doi.org/10.3390/ijms251910618
Submission received: 16 August 2024 / Revised: 24 September 2024 / Accepted: 29 September 2024 / Published: 2 October 2024
(This article belongs to the Special Issue G Protein-Coupled Receptors in Cell Signaling Transductions—2nd Edition)
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Abstract

Insecticide resistance in insects, driven by the overexpression of P450 enzymes, presents a significant challenge due to the enhanced metabolic detoxification of insecticides. Although the transcriptional regulation of P450 genes is not yet fully understood, G-protein-coupled receptor (GPCR) genes have emerged as key regulators in this process. This study is the first to associate GPCR genes with insecticide resistance in Musca domestica. We identified two key rhodopsin-like GPCR genes, ALHF_02706.g1581 and ALHF_04422.g2918, which were significantly overexpressed in the resistant ALHF strain compared to sensitive strains. Notably, both ALHF_02706.g1581 and ALHF_04422.g2918 were mapped to autosome 2, where critical but unidentified regulatory factors controlling resistance and P450 gene regulation are located. This supports our hypothesis that GPCRs function as trans-regulatory factors for P450-mediated resistance. Functional analysis using transgenic Drosophila demonstrated that overexpression of these rhodopsin-like GPCR genes increased permethrin resistance by approximately two-fold. Specifically, ALHF_02706.g1581 overexpression significantly upregulated the Drosophila resistance-related P450 genes CYP12D1, CYP6A2, and CYP6A8, while ALHF_04422.g2918 increased CYP6G1 and CYP6A2 expression, thereby enhancing insecticide detoxification in rhodopsin-like GPCR transgenic Drosophila lines. These findings suggest that these rhodopsin-like GPCR genes on autosome 2 may act as trans-regulatory factors for P450-mediated resistance, underscoring their critical role in insecticide detoxification and resistance development in M. domestica.
Keywords: house flies; insecticide resistance; G-protein coupled receptors (GPCRs); gene mapping; cytochrome P450s house flies; insecticide resistance; G-protein coupled receptors (GPCRs); gene mapping; cytochrome P450s

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MDPI and ACS Style

Xin, J.; Brown, D.; Wang, Y.; Wang, X.; Li, M.; Li, T.; Liu, N. Unveiling the Role of Two Rhodopsin-like GPCR Genes in Insecticide-Resistant House Flies, Musca domestica. Int. J. Mol. Sci. 2024, 25, 10618. https://doi.org/10.3390/ijms251910618

AMA Style

Xin J, Brown D, Wang Y, Wang X, Li M, Li T, Liu N. Unveiling the Role of Two Rhodopsin-like GPCR Genes in Insecticide-Resistant House Flies, Musca domestica. International Journal of Molecular Sciences. 2024; 25(19):10618. https://doi.org/10.3390/ijms251910618

Chicago/Turabian Style

Xin, Juanjuan, Dylan Brown, Yifan Wang, Xin Wang, Ming Li, Ting Li, and Nannan Liu. 2024. "Unveiling the Role of Two Rhodopsin-like GPCR Genes in Insecticide-Resistant House Flies, Musca domestica" International Journal of Molecular Sciences 25, no. 19: 10618. https://doi.org/10.3390/ijms251910618

APA Style

Xin, J., Brown, D., Wang, Y., Wang, X., Li, M., Li, T., & Liu, N. (2024). Unveiling the Role of Two Rhodopsin-like GPCR Genes in Insecticide-Resistant House Flies, Musca domestica. International Journal of Molecular Sciences, 25(19), 10618. https://doi.org/10.3390/ijms251910618

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