Fig. 7From: Comparative transcriptome and metabolome analyses provide new insights into the molecular mechanisms underlying taproot thickening in Panax notoginsengStarch and sucrose metabolic pathway (a) and expression patterns of DEGs assigned to starch and sugar metabolism in the four taproot transcriptomes, March, May, July, and November. b. The log-transformed expression values range from − 1 to 1. Red and blue colors indicate up- and down- regulated transcripts, respectivelyBack to article page