Fig. 6.

Separation of samples by dormancy stage and cultivar using differentially expressed genes. The principal component analysis was conducted on the TPM (transcripts per millions reads) values for the differentially expressed genes in the flower buds of the cultivars ‘Cristobalina’ (filled squares), ‘Garnet’ (empty circles) and ‘Regina’ (stars). Samples in organogenesis are red points, samples in paradormancy are yellow points, samples in endodormancy are dark blue points, samples at dormancy release are light blue points and samples in ecodormancy are green points. Each point corresponds to one sampling time in a single tree