A Plant Virus Manipulates Both Its Host Plant and the Insect That Facilitates Its Transmission

Overview

Journal Sci Adv

Specialties Biology
Science

Date 2025 Feb 28

PMID 40020061

Authors

Peng Liang

Yang Zeng

Jie Ning

Xiaojie Wu

Wenlu Wang

Jun Ren

Qingjun Wu

Xin Yang

Shaoli Wang

Zhaojiang Guo

Qi Su

Xuguo Zhou

Ted C J Turlings

Wen Xie

Youjun Zhang

Affiliations

Soon will be listed here.

Abstract

Tomato yellow leaf curl virus (TYLCV), a devastating pathogen of tomato crops, is vectored by the whitefly , yet the mechanisms underlying TYLVC epidemics are poorly understood. We found that TYLCV triggers the up-regulation of two β-myrcene biosynthesis genes in tomato, leading to the attraction of nonviruliferous . We also identified BtMEDOR6 as a key whitefly olfactory receptor of β-myrcene involved in the distinct preference of MED for TYLCV-infected plants. TYLCV inhibits the expression of BtMEDOR6, canceling this preference and thereby facilitating TYLCV transmission to uninfected plants. Greenhouse experiments corroborated the role of β-myrcene in whitefly attraction. These findings reveal a sophisticated viral strategy whereby TYLCV modulates both host plant attractiveness and vector olfactory perception to enhance its spread.

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