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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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11870061 | PMC |
| http://dx.doi.org/10.1126/sciadv.adr4563 | DOI Listing |
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