Fig. 1
From: Genetical genomics of quality related traits in potato tubers using proteomics

An example of a 2D DIGE gel image (a) Different protein spots which are co-localizing with a flesh colour QTL are shown in yellow boxes. The dark protein spots in the middle and left of the gel are the over-abundant patatin proteins. b A panel of 10 different gels (in all cases the right bottom quarter is depicted in this figure) showing the patterns and the absence/presence (blue rectangular area), always present in almost similar amounts (round area), as well as several examples of spots with varying quantities over different samples (black rectangular area)