Genome-Wide Analysis of BURP Domain-Containing Gene Family in and Functional Analysis of Under Drought and Salt Stresses.

The BURP domain-containing () genes belong to plant-specific families and are known as essential for various biological processes in plants. However, knowledge of the functions of genes in tomato () is lacking. In our study, bioinformatics analysis was performed for the gene family, including phylogeny, chromosomal localization, gene structure, -acting elements and expression. In addition, the function of in drought and salt stresses was explored. In tomato, fourteen family members were identified, located on five chromosomes, including two tandem duplication clusters. These BURP members were classified into four subfamilies. The promoter regions of harbored numerous hormone- and stress-response elements. Tissue expression analysis showed that several were highly expressed in roots, flowers or fruits. Meanwhile, the expressions of most could be regulated by drought, salt and cold treatments, and some of them also responded to ABA treatment. Moreover, the ectopic expression of in enhanced tolerances to drought and salt stresses and increased the sensitivity of seed germination to ABA. In conclusion, the comprehensive analysis of the family in tomato and the functional exploration of in drought and salt stresses provide a basis for further dissecting the roles of tomato genes.