Genome-Wide Identification and Expression Characterization of the Gene Family of L.

As a crucial member of the gene family involved in the biosynthesis of strigolactones, plays an important regulatory role in plant branching and root development, which is essential for field management and yield increase in peppers ( L.). To comprehensively understand the characteristics of the pepper gene family, we identified three genes. By analyzing their physicochemical properties, phylogenetic relationships, gene structures, promoters, and expression patterns in different tissues, the characteristics of the gene family were revealed. The research results showed that these three genes are located in three different chromosomes. Evolutionary analysis divided the members of CaD27 into three groups, and gene collinearity analysis did not find any duplicates, indicating the diversity and non-redundancy of the gene family members. In addition, we identified and classified -elements in the promoter regions of genes, with a relatively high proportion related to light and plant hormone responses. Expression pattern analysis showed that is expressed in leaves, while is expressed in roots, indicating tissue specificity. Furthermore, protein interaction predictions revealed an interaction between D27.2 and CCD7. This study provided important insights into the function and regulatory mechanisms of the gene family and the role of strigolactones in plant growth and development.