Genome-Scale Identification, Classification, and Expression Profiling of MYB Transcription Factor Genes in Cinnamomum camphora

• Published in: International journal of molecular sciences Vol. 23; no. 22; p. 14279
• Main Authors: Luan, Xiaoyue, Xu, Wenlin, Zhang, Jiaqi, Shen, Tengfei, Chen, Caihui, Xi, Mengli, Zhong, Yongda, Xu, Meng
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 18.11.2022; MDPI
• Subjects: Abiotic stress; Amino acids; Biological activity; Biosynthesis; Camphor; camphor genome; CcMYB; Cell cycle; Cinnamomum camphora; Cinnamomum camphora - chemistry; Cinnamomum camphora - genetics; Coniferous forests; Correlation analysis; Essential oils; Flavonoids; Flavonoids - metabolism; Forests; Gene expression; Genes; Genomes; Metabolism; Metabolites; MYB transcription factors; Oils, Volatile - chemistry; Phylogenetics; Phylogeny; Proteins; Raw materials; Subgroups; Trees; China; CcMYB; MYB transcription factors; camphor genome; Cinnamomum camphora; gene expression
• ISSN: 1422-0067; 1661-6596; 1422-0067
• DOI: 10.3390/ijms232214279

The camphor tree ( (L.) Presl.) is the representative species of subtropical evergreen broadleaved forests in eastern Asia and an important raw material for essential oil production worldwide. Although MYBs have been comprehensively characterized and their functions have been partially resolved in many plants, it has not been explored in . In this study, 121 were identified on 12 chromosomes in the whole genome of and found that were mainly expanded by segmental duplication. They were divided into 28 subgroups based on phylogenetic analysis and gene structural characteristics. In the promoter regions, numerous -acting elements were related to biological processes. Analysis of RNA sequencing data from seven tissues showed that exhibited different expression profiles, suggesting that they have various roles in camphor tree development. In addition, combined with the correlation analysis of structural genes in the flavonoid synthesis pathway, we identified from three subgroups that might be related to the flavonoid biosynthesis pathway. This study systematically analyzed in , which will set the stage for subsequent research on the functions of during their lifetime and provide valuable insights for the genetic improvement of camphor trees.