A systematical genome-wide analysis and screening of WRKY transcription factor family engaged in abiotic stress response in sweetpotato.

ABSTRACT:

Background

WRKY transcription factors play pivotal roles in regulating plant multiple abiotic stress tolerance, however, a genome-wide systematical analysis of WRKY genes in sweetpotato is still missing.

Results

Herein, 84 putative IbWRKYs with WRKY element sequence variants were identified in sweetpotato reference genomes. Fragment duplications, rather than tandem duplications, were shown to play prominent roles in IbWRKY gene expansion. The collinearity analysis between IbWRKYs and the related orthologs from other plants further depicted evolutionary insights into IbWRKYs. Phylogenetic relationships displayed that IbWRKYs were divided into three main groups (I, II and III), with the support of the characteristics of exon-intron structures and conserved protein motifs. The

SUBMITTER: Liu S 

PROVIDER: S-EPMC9795774 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature