Genome-Wide Identification Analysis of the R2R3-MYB Transcription Factor Family in Cymbidium sinense for Insights into Drought Stress Responses.

ABSTRACT: Cymbidium sinense represents a distinctive Orchidaceae plant that is more tolerant than other terrestrial orchids. Studies have shown that many members of the MYB transcription factor (TF) family, especially the R2R3-MYB subfamily, are responsive to drought stress. This study identified 103 CsMYBs; phylogenetic analysis classified these genes into 22 subgroups with Arabidopsis thaliana. Structural analysis showed that most CsMYB genes contained the same motifs, three exons and two introns, and showed a helix-turn-helix 3D structure in each R repeat. However, the members of subgroup 22 contained only one exon and no intron. Collinear analysis revealed that C. sinense had more orthologous R2R3-MYB genes with wheat than A. thaliana and rice. Ka/Ks<

SUBMITTER: Zhu M 

PROVIDER: S-EPMC9959677 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature