Fig. 5

The principle component analysis (PCA) of differently expressed transcripts during cold acclimation. PCA of differently expressed transcripts between ‘Veyo’ and ‘Falster’ genotypes and between lengths of time in days that plants were exposed to cold acclimation are shown. PC1 separates samples according to genotype and explains 66 % of variance. PC2 separates samples according to the length of time in d that plants were exposed to cold acclimation and explains 12 % of the variance. Black, red, green and blue dots represent 0, 9, 13 and 17 d of cold acclimation