FIGURE 2.

The number of differentially expressed genes was initially large and diminished through time. This pattern indicates large shifts of expression during the first three months of controlled atmosphere storage at −0.5°C may be involved in ripening processes. This includes gain of the chilling-induced capacity to ripen for European pear varieties like ‘d’Anjou’. It also shows that massive shifts in gene expression may obscure useful biosignatures. Significant differential expression was determined by Bonferroni corrected P < 0.05.