A major QTL on chromosome 7HS controls the response of barley seedling to salt stress in the Nure × Tremois population.

ABSTRACT:

Background

Seedling establishment is a crucial and vulnerable stage in the crop life cycle which determines further plant growth. While many studies are available on salt tolerance at the vegetative stage, the mechanisms and genetic bases of salt tolerance during seedling establishment have been poorly investigated. Here, a novel and accurate phenotyping protocol was applied to characterize the response of seedlings to salt stress in two barley cultivars (Nure and Tremois) and their double-haploid population.

Results

The combined phenotypic data and existing genetic map led to the identification of a new major QTL for root elongation under salt stress on chromosome 7HS, with the parent Nure carrying the favourable allele. Gene-based markers were developed from the rice synte

SUBMITTER: Xue W 

PROVIDER: S-EPMC5568257 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature