Fig. 7

Expression analysis of 25 VviBBX genes in two seeded cultivars, ‘Red Globe’ (R.G.) and ‘Kyoho’ (K.), and two seedless cultivars, ‘Thompson Seedless’ (T.S.) and ‘Flame Seedless’ (F.S.). a Semi-quantitative RT-PCR expression analysis. Transcripts were normalized to the expression of the ACTIN1 gene and EF1-α gene. b Quantitative RT-PCR analysis of expression of selected VviBBX genes. The grapevine ACTIN1 gene was used as an internal control to normalize expression levels. Mean values and standard deviations (SDs) are indicated by error bars. Asterisks indicate significance of the indicated differences in gene expression according to the t-test (*P< 0.05, **P< 0.01)