A Genome-Wide Analysis of Genes Reveals the Critical Role in Enhanced Bacterial Wilt Tolerance in Potato During Infection.

is one of the members of TGACG sequence-specific binding protein family, which plays a crucial role in the regulated course of hormone synthesis as a stress-responsive transcription factor (TF). Little is known, however, about its implication in response to bacterial wilt disease in potato () caused by . Here, we performed an identification and analysis of the members of the family based on the whole genome data of potato. In total, 42 were predicted to be distributed on four chromosomes in potato genome. Phylogenetic analysis showed that the proteins of could be divided into six sub-families. We found that many of these genes have more than one exon according to the conserved motif and gene structure analysis. The heat map inferred that are generally expressed in different tissues which are at different stages of development. Genomic collinear analysis showed that there are homologous relationships among potato, tomato, pepper, Arabidopsis, and tobacco genes. Cis-element analysis predicted that there may be many cis-acting elements related to abiotic and biotic stress upstream of promoter including plant hormone response elements. A representative member was selected to investigate the potential function of the genes for further analysis. Quantitative real-time polymerase chain reaction (qRT-PCR) assays indicated that the expression of the was significantly induced by infection and upregulated by exogenous salicylic acid (SA), abscisic acid (ABA), gibberellin 3 (GA), and methyl jasmonate (MeJA). The results of yeast one-hybrid (Y1H) assay showed that regulates BRI1-associated receptor kinase 1 () expression. Thus, our study provides a theoretical basis for further research of the molecular mechanism of the gene of potato tolerance to bacterial wilt.