Transcriptome profiling of chrysanthemum petal

The diversity of form of the chrysanthemum flower makes the species an ideal model for studying petal morphogenesis, but as yet, the molecular mechanisms underlying petal shape development remain largely unexplored. Here, a floral mutant, which arose as a bud sport in a plant of the variety 'Anastasia Dark Green', and formed straight, rather than hooked, petals, was subjected to both comparative morphological analysis and transcriptome profiling. The mutant phenotype only became visible during a late stage of floral development. Twenty-four petals samples obtained from S2, S5, S10 and EB stage were subjected to RNA-Seq.