Figure 6.

Onset of latewood formation in Norway spruce. A, Date of latewood onset and variation among the three replicate trees for each time point. B, Venn diagram showing the overlap between the results of two differential expression analyses (adjusted P < 0.01; 79 genes): the first time point when latewood cells were observed versus the last sampling before latewood detection (640 genes) and samples containing latewood versus those without over the course of latewood formation (467 genes; three samplings in July). C, GO term enrichment analysis of the common genes between comparisons.