Comprehensive analysis of differentially expressed genes and transcriptional regulation induced by salt stress in two contrasting cotton genotypes.

ABSTRACT:

Background

Cotton (Gossypium spp.) is one of the major fibre crops of the world. Although it is classified as salt tolerant crop, cotton growth and productivity are adversely affected by high salinity, especially at germination and seedling stages. Identification of genes and miRNAs responsible for salt tolerance in upland cotton (Gossypium hirsutum L.) would help reveal the molecular mechanisms of salt tolerance. We performed physiological experiments and transcriptome sequencing (mRNA-seq and small RNA-seq) of cotton leaves under salt stress using Illumina sequencing technology.

Results

We investigated two distinct salt stress phases--dehydration (4 h) and ionic stress (osmotic restoration; 24 h)--that were identified by physiological changes of 14-day-old seedlings of two

SUBMITTER: Peng Z 

PROVIDER: S-EPMC4169805 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature