Genome-Wide Analysis and Expression Profiles of the Dof Family in under Temperature, Salt and ABA Treatment.

The DNA-binding with one zinc finger () family of plant-specific transcription factors has a variety of important functions in gene transcriptional regulation, development, and stress responses. However, the structure and expression patterns of family have not been identified in , which is an important xerophytic and perennial gramineous grass in desert grassland. In this study, 50 genes were identified in and could be classified into four groups. According to genome-wide analysis, 46 of 50 genes were located on 20 chromosomes, and the gene structure and conserved protein motif of these proteins were analyzed. In addition, phylogenetic analysis of genes in , , , and estimated the evolutionary relationships, and these genes were grouped into seven clusters. Moreover, the expression profiles of these genes in were analyzed in response to high/low temperature, salinity, and ABA treatments. These results will provide valuable information for future studies on gene classification, cloning, and functional characterization of this family in .