While alcohol dehydrogenases (ADHs) catalyse the reversible conversion of C6 aldehydes to the corresponding C6 alcohols (Schwab et al., 2008), the down-regulation of an ADH gene (Vitvi14g02621 = VIT_14s0030g01030) that we detected in both the skin and flesh of TB compared to TT might have been related to the higher retention of aldehydes in the white-berried variants (Supplementary Fig. S8; Supplementary Table S4). This evidence concerns the gene AKR1A1 and tuberculosis.