Quantitative trait locus mapping of osmotic stress response in the fungal wheat pathogen Zymoseptoria tritici.

ABSTRACT: Osmotic stress is a ubiquitous and potent stress for all living organisms, but few studies have investigated the genetic basis of salt tolerance in filamentous fungi. The main aim of this study was to identify regions of the genome associated with tolerance to potassium chloride (KCl) in the wheat pathogen Zymoseptoria tritici. A secondary aim was to identify candidate genes affecting salt tolerance within the most promising chromosomal regions. We achieved these aims with a quantitative trait locus (QTL) mapping study using offspring from 2 crosses grown in vitro in the presence or absence of osmotic stress imposed by 0.75 M KCl. We identified significant QTL for most of the traits in both crosses. Several QTLs overlapped with QTL identified in earlier studies for other traits, and some Q

SUBMITTER: Stapley J 

PROVIDER: S-EPMC10700024 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature