GENOME-WIDE IDENTIFICATION AND CHARACTERIZATION OF THE DOF GENE FAMILY IN PRUNUS SIBIRICA

Prunus sibirica (Siberian apricot) is a species of the family Rosaceae, section Armeniaca (Lam.) Koc, which has enormous potential for oil and food raw materials. DNA binding with one finger (Dof) transcription factors play major roles in plant biological processes. However, the evolutionary and functional information of the Dofs in P. sibirica remain unclear. Here, we conducted a genome-wide screening and characterization of the Dofs in P. sibirica, and 24 putative PsDofs were identified, which were distributed across all eight chromosomes. Phylogenetic analysis showed that PsDofs were divided into four major groups (A, B, C, and D). The gene structure and conserved motifs of PsDofs were also predicted. The expression profiles of PsDofs exhibited different expression patterns in flower buds, flowers, leaves, fruits, and kernels. This study provides an important foundation for better understand the evolution and function of PsDofss.