Grape Phylloxera Genetic Structure Reveals Root-Leaf Migration within Commercial Vineyards.

ABSTRACT: Depending on their life cycle, grape phylloxera (Daktulosphaira vitifoliae Fitch) leaf-feeding populations are initiated through asexually produced offspring or sexual recombination. The vine's initial foliar larvae may originate from root-feeding phylloxera or wind-drifted foliar larvae from other habitats. Though some studies have reported phylloxera leaf-feeding in commercial vineyards, it is still unclear if they are genetically distinct from the population structure of these two sources. Using seven SSR-markers, this study analyzed the genetic structure of phylloxera populations in commercial vineyards with different natural infestation scenarios and that of single-plant insect systems that exclude infestation by wind-drifted larvae. We saw that during the vegetation period, phyl

SUBMITTER: Wilmink J 

PROVIDER: S-EPMC8396592 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature