Genome-Wide Identification and Characterization of the Dof Transcription Factor Gene Family in Phaseolus vulgaris L.
American Journal of Plant Sciences (AJPS)
PvDof that were classified into seven subfamilies (A, B1, B2, C1, C2,
D1, and, D2) by comparative phylogenetic analysis. Based on our genome duplication
analysis, a total of 36 genes were found to be distributed on all 11 chromosomes,
and they expanded through gene duplication in tandem, suggesting the involvement of segmental
duplication events in the evolutionary process. Synteny events and phylogenetic
comparisons of the Dof proteins of common bean with those of A. thaliana, O. sativa, and G. max L. led to the identification of several
orthologous and paralogous genes, which provided further insight into the diversity
of the evolutionary characteristics of genes of this family in other plant species.
Expression profiles revealed that most of the PvDof genes were expressed in different tissues, indicating that PvDof genes may be involved in various physiological
functions during plant development. The results of this study provide additional
information and potential biotechnological resources for further understanding the
molecular basis of this gene family and consequently improvement of common bean