Genome-wide association and differential expression analysis of salt tolerance in Gossypium hirsutum L at the germination stage.

ABSTRACT:

Background

Salinity is a major abiotic stress seriously hindering crop yield. Development and utilization of tolerant varieties is the most economical way to address soil salinity. Upland cotton is a major fiber crop and pioneer plant on saline soil and thus its genetic architecture underlying salt tolerance should be extensively explored.

Results

In this study, genome-wide association analysis and RNA sequencing were employed to detect salt-tolerant qualitative-trait loci (QTLs) and candidate genes in 196 upland cotton genotypes at the germination stage. Using comprehensive evaluation values of salt tolerance in four environments, we identified 33 significant single-nucleotide polymorphisms (SNPs), including 17 and 7 SNPs under at least two and four environments, respective

SUBMITTER: Yuan Y 

PROVIDER: S-EPMC6737726 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature