Trichomes and unique gene expression confer insect herbivory resistance in Vitis labrusca grapevines.

ABSTRACT:

Background

Grapevine (Vitis) is one of the world's most valuable fruit crops, but insect herbivory can decrease yields. Understanding insect herbivory resistance is critical to mitigating these losses. Vitis labrusca, a wild North American grapevine species, has been leveraged in breeding programs to generate hybrid grapevines with enhanced abiotic and biotic stress resistance, rendering it a valuable genetic resource for sustainable viticulture. This study assessed the resistance of V. labrusca acc. 'GREM4' and Vitis vinifera cv. 'PN40024' grapevines to Popillia japonica (Japanese beetle) herbivory and identified morphological and genetic adaptations underlying this putative resistance.

Results

'GREM4' displayed greater resistance to beetle herbivory compared to 'PN40024' i

SUBMITTER: Dixon CW 

PROVIDER: S-EPMC11209964 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature