7.1.4. *Cymbidium* Cultivar Sael Bit

The small green and light yellow colored flowers of *Cymbidium* cultivar Sael Bit are highly fragrant [109]. The strong emission of volatiles was detected in petals at the blooming stage. The dominant floral VOCs in Sael Bit were identified to be alkenes, benzenes, and estaric compounds; i.e., 2-methyl butanal, 2-methyl pentanal and (Z)-2-octenal at the blooming stage.

Full-length cDNA of *Cymbidium* Sael Bit *MYB1* from the petal has been isolated; fragrance genes such as *MYB1*, *OOMT*, *AOS*, *LOX*, and *SAMS* were expressed during the entire floral developmental stages, and all genes were highly expressed in the full opening flowers [29]. Sael Bit *MYB1* regulates the floral scent phenylproponoid- and benzenoid-responsible genes during scent emission.
