Genome-Wide Identification of PEBP Gene Family in Two Species and Expression Patterns in .

The PEBP gene family plays a significant role in regulating flower development and formation. To understand its function in and flowering, we identified 22 PEBP genes (11 s and 11 s) from both species. We conducted analyses on their conserved domains and motifs, phylogenetic relationships, chromosome distribution, collinear correlation, and elements. The classification results showed that the 22 s were mainly divided into three clades, as follows: FT, MFT, and TFL1. A sequence analysis showed that most PEBP proteins contained five conserved domains, while a gene structure analysis revealed that 77% of the total PEBP genes contained four exons and three introns. The promoter regions of the 22 s contained several elements related to hormone induction and light response. This suggests these s could play a role in regulating flower development by controlling photoperiod and hormone levels. Additionally, a collinearity analysis revealed three pairs of duplicate genes in the genomes of both and . Furthermore, RT-qPCR has found to influence the regulatory effect of s on the development of flower organs (sepals, petals, lip, ovary, and gynostemium) during the flowering process (bud, transparent stage, and initial bloom). The results obtained imply that and play a role in the initial bloom and that may inhibit flowering processes. Moreover, may potentially be involved in the development of reproductive functionality. s have regulatory functions that modulate flowering. FT initiates plant flowering by mediating photoperiod and temperature signals, while TFL1 inhibits flowering processes. These findings provide clues for future studies on flower development in