Identification of QTL associated with resistance to Phytophthora fruit rot in cucumber (Cucumis sativus L.).

ABSTRACT: Phytophthora fruit rot (PFR) caused by the soilborne oomycete pathogen, Phytophthora capsici, can cause severe yield loss in cucumber. With no resistant variety available, genetic resources are needed to develop resistant varieties. The goal of this work was to identify quantitative trait loci (QTL) associated with resistance to PFR using multiple genomic approaches and populations. Two types of resistances have been identified: age-related resistance (ARR) and young fruit resistance. ARR occurs at 12-16 days post pollination (dpp), coinciding with the end of exponential fruit growth. A major QTL for ARR was discovered on chromosome 3 and a candidate gene identified based on comparative transcriptomic analysis. Young fruit resistance, which is observed during the state of rapid frui

SUBMITTER: Lin YC 

PROVIDER: S-EPMC10693349 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature