MYB家族是植物中最大的转录因子家族之一,在调节植物生化和生理过程中起着至关重要的作用。然而,广藿香中的R2R3-MYBs尚未得到系统研究。这里,基于广藿香基因组序列的基因注释，检测到484个R2R3-MYB转录物。对R2R3-MYB的基因结构和表达的进一步深入分析支持广藿香的四倍体杂种起源。当与拟南芥的R2R3-MYB结合时，构建了广藿香R2R3-MYB的系统发育树，并将其分为31个分支。有趣的是,发现了广藿香特异性R2R3-MYB进化枝，并与其他唇形科物种同源。同调分析表明，串联重复有助于其进化。本研究系统分析了广藿香中的R2R3-MYB家族，提供有关其基因特征的信息，功能预测，和物种进化。
MYB family is one of the largest transcription factor families in plants and plays a crucial role in regulating plant biochemical and physiological processes. However, R2R3-MYBs in patchouli have not been systematically investigated. Here, based on the gene annotation of patchouli genome sequence, 484 R2R3-MYB transcripts were detected. Further in-depth analysis of the gene structure and expression of R2R3-MYBs supported the tetraploid hybrid origin of patchouli. When combined with R2R3-MYBs from Arabidopsis, a phylogenetic tree of patchouli R2R3-MYBs was constructed and divided into 31 clades. Interestingly, a patchouli-specific R2R3-MYB clade was found and confirmed by homologous from other Lamiaceae species. The syntenic analysis demonstrated that tandem duplication contributed to its evolution. This study systematically analysed the R2R3-MYB family in patchouli, providing information on its gene characterization, functional prediction, and species evolution.
