Fig. 4
Expression analysis of GhNAC genes during fiber development. a The number of highly expressed NAC genes (FPKM ≥20) in different tissues/organs. The expression of NAC family members in different tissues/organs were investigated using transcriptome datasets of G. hirsutum. b Cluster analysis of the GhNAC expression patterns in fiber development. The grey lines indicate the expression levels of genes. c Heat-map of 38 highly and differently expressed NAC genes in fiber development based on transcriptome datasets. The expression values (FPKM) were normalized using Genesis. d The bias expression of fiber related NAC genes in G. hirsutum. e Two gene pairs showed discordant expression changes between G. hirsutum and G. barbadense