# Molecular Docking of Detoxification Enzymes from Oides leucomelaena with Volatiles of Star Anise

## TL;DR

This study explores how a pest beetle adapts to star anise chemicals, identifying detox enzymes that could lead to eco-friendly pest control methods.

## Contribution

The study identifies detoxification genes in Oides leucomelaena and their binding potential with star anise volatiles using molecular docking.

## Key findings

- 64 CYP, 21 GST, and 44 CarE detoxification genes were identified in O. leucomelaena.
- Seven CYP proteins showed strong binding affinity with star anise volatiles, including an antennae-specific CYP.
- Detoxification genes may help the beetle adapt to star anise, offering targets for natural pest control.

## Abstract

Star anise is a valuable crop in China, but it is often severely damaged by a pest (Oides leucomelaena Weise). Farmers usually rely on chemical pesticides to control this insect, which can harm the environment. In this study, we aimed to find eco-friendly ways to manage the pest by understanding how it tolerates natural plant defenses. We identified key proteins in the beetle that help it break down chemicals in star anise leaves. Using computer simulations, we found that some of these proteins strongly interact with specific fragrant compounds produced by the plant. This suggests that the beetle uses these proteins to adapt to and survive on star anise. Our findings may help develop new, natural methods to control this pest.

Star anise, an economically and medicinally important crop, is highly susceptible to infestation by Oides leucomelaena Weise, leading to significant yield losses. This study employed transcriptome sequencing and bioinformatic analysis to systematically identify detoxification genes (CYP, GST, and CarE) in O. leucomelaena and evaluated their binding potential with star anise volatiles via molecular docking. A total of 64 CYP, 21 GST, and 44 CarE genes were identified, with several genes showing high expression across multiple tissues. Molecular docking revealed strong binding affinity between seven CYP proteins and star anise volatiles, notably the antennae-specific CYP, which exhibited robust binding with multiple volatiles. Detoxification genes in O. leucomelaena may mediate host adaptation by metabolizing star anise volatiles, providing potential targets for eco-friendly pest control.