Identification of candidate genes responsible for the susceptibility of apple (Malus × domestica Borkh.) to Alternaria blotch.

ABSTRACT:

Background

The mechanism underlying the interaction between host plant and host-selective toxin (HST)-producing Alternaria alternata during infection is of particular interest for sustainable crop production. Alternaria blotch of apple (Malus × domestica Borkh.) caused by A. alternata apple pathotype is a major disease particularly in East Asia, which is the largest producer of apples globally. A single dominant gene, Alt, controls the susceptibility of the apple cultivar 'Delicious' to Alternaria blotch. In this study, we fine mapped the Alt locus and characterized three potential candidate genes.

Results

We used 797 F₁ individuals derived from 15 crosses between apple accessions susceptible (Alt/alt) and resistant (alt/alt) to Alternaria blotch to construct phys

SUBMITTER: Moriya S 

PROVIDER: S-EPMC6454750 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature