Genome-wide identification, expression profiles and regulatory network of MAPK cascade gene family in barley.

ABSTRACT:

Background

Mitogen-activated protein kinase (MAPK) cascade is a conserved and universal signal transduction module in organisms. Although it has been well characterized in many plants, no systematic analysis has been conducted in barley.

Results

Here, we identified 20 MAPKs, 6 MAPKKs and 156 MAPKKKs in barley through a genome-wide search against the updated reference genome. Then, phylogenetic relationship, gene structure and conserved protein motifs organization of them were systematically analyzed and results supported the predictions. Gene duplication analysis revealed that segmental and tandem duplication events contributed to the expansion of barley MAPK cascade genes and the duplicated gene pairs were found to undergone strong purifying selection. Expression profiles o

SUBMITTER: Cui L 

PROVIDER: S-EPMC6796406 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature