Fig. 1

Comparative gene expression analysis in turmeric cultivars at three stages of growth. Gene expressions were normalized to the reference gene Actin. Green colored bars represent GNT-2, red-colored bars represent Pratibha, and dark blue colored bars represent NDH-98. The first bar in each gene family is the average of the three stages SI, SII, and SIII of each cultivar, i.e., GNT-2 (G), Pratibha (P), and NDH-98 (N). In NDH-98, DCS expression is decreasing at all stages of growth from SI to SIII, CURS1, and CURS2 expression is higher at SI and SII and decreased at SIII whereas higher expression of CURS3 at SII stages under study. In the case of GNT-2, DCS, CURS1, and CURS3 are highly expressed at SII than SI and SIII, the CURS2 expression level is increasing throughout the growth stages from SI to SIII where DCS and CURS3 have almost equal expression level at SII in GNT-2. For Pratibha, DCS, CURS1, and CURS2 gene expressions are higher at SII as compared with SI and SIII, and CURS3 gene expression is decreasing at all stages of growth from SI to SIII. A significant amount of gene expression variation was observed during SII (5 months after planting) among the cultivars