Fig. 3From: Tissue and cell-specific transcriptomes in cotton reveal the subtleties of gene regulation underlying the diversity of plant secondary cell walls NAC transcription factor expression during Gossypium hirsutum SCW and PCW formation. The heat map shows the RNA expression level as normalised FPKM of each differentially expressed NAC across the five tissues sampled. The differentially expressed NAC transcription factors were classified into ‘NAC TF groups’ based on phylogenetic similarity with Arabidopsis NACs (Additional file 7). XYLM, stem xylem; PITH, stem pith; SF07, seed fibre at 7 DPA; SF15, seed fibre at 14, 15, 16, DPA; SF25, seed fibre at 25 DPA; DPA, days post anthesisBack to article page