The Identification and Expression Analysis of the Gene Family.

The gene family is one of the largest gene families in plants, and it plays a crucial role in regulating plant development, reproduction, cellular protein degradation, and response to biotic and abiotic stresses. Despite their significance, a comprehensive analysis of the gene family in and other magnoliaceae species has not been reported. In this study, we report for the first time the identification of 144 full-length genes in . Based on specific domains and phylogenetic analyses, these genes were divided into 10 distinct subfamilies. We further analyzed their gene structure, conserved domain and chromosome distribution, genome-wide replication events, and collinearity. Additionally, based on GO analysis, we found that genes exhibit functional specificity, with a significant proportion of them being involved in protein binding (GO:0005515), suggesting that genes may play an important role in gene regulation in . Transcriptome data and q-PCR results also showed that genes are involved in the development of multiple tissues in , regulate the somatic embryogenesis of hybrids, and play a pivotal role in abiotic stress. Altogether, these findings provide a foundation for understanding the biological function of genes in and other plant species.