Liu, AZ (reprint author), Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China.
DNA binding with one finger (Dof) transcription factors are unique in plants, characteristically composed of a Dof domain in structure, functionally involved in mediating many processes of plant growth and development. In this study, we report a genome-wide analysis for Dof gene family in castor bean (Ricinus communis L., Euphorbiaceae) genome. In total, 21 RcDof genes were identified and their constructional characterization, classes and phylogenetic relationships were documented. The expression profiles of the 21 RcDof genes among different tissues were inspected using the high throughput RNA-Seq data. Finally, SqRT-PCR analysis was performed to test the transcriptional responses of the 21 RcDof genes to abscisic acid (ABA) and/or gibberellic acid (GA) signals, resulting in the identification of 18 RcDof genes responsive to ABA and/or GA signals. Thus, this study would provide basic information in understanding the molecular basis of the RcDof family and their potential function in regulating the growth and development of castor bean.