Fig. 3

K-means clustering analysis of transcripts differentially expressed in ‘Falster’ during cold acclimation. The x axis represents the sample collection time points (d) during cold acclimation. The y axis corresponds to the variance stabilized data from edgeR. Differentially expressed transcripts were divided into 24 categories (C 1 – C 24) according to their expression patterns. Plants were at 20 °C on the d 0 and at 7 °C on d 1 to d 17