Genome-Wide Identification and Characterization of Drought Stress Responsive microRNAs in Tibetan Wild Barley.

ABSTRACT: Drought stress is a major obstacle to agricultural production. Tibetan wild barley with rich genetic diversity is useful for drought-tolerant improvement of cereals. MicroRNAs (miRNAs) play critical roles in controlling gene expression in response to various environment perturbations in plants. However, the genome-wide expression profiles of miRNAs and their targets in response to drought stress are largely unknown in wild barley. In this study, a polyethylene glycol (PEG) induced drought stress hydroponic experiment was performed, and the expression profiles of miRNAs from the roots of two contrasting Tibetan wild barley genotypes XZ5 (drought-tolerant) and XZ54 (drought-sensitive), and one cultivated barley Tadmor (drought-tolerant) generated by high-throughput sequencing were compared.

SUBMITTER: Qiu CW 

PROVIDER: S-EPMC7216285 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature