Mapping of a major QTL for salt tolerance of mature field-grown maize plants based on SNP markers.

ABSTRACT:

Background

Salt stress significantly restricts plant growth and production. Maize is an important food and economic crop but is also a salt sensitive crop. Identification of the genetic architecture controlling salt tolerance facilitates breeders to select salt tolerant lines. However, the critical quantitative trait loci (QTLs) responsible for the salt tolerance of field-grown maize plants are still unknown.

Results

To map the main genetic factors contributing to salt tolerance in mature maize, a double haploid population (240 individuals) and 1317 single nucleotide polymorphism (SNP) markers were employed to produce a genetic linkage map covering 1462.05 cM. Plant height of mature maize cultivated in the saline field (SPH) and plant height-based salt tolerance index (ratio

SUBMITTER: Luo M 

PROVIDER: S-EPMC5556339 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature