Phenotypic data
Photographs were taken of 5 to 11 Tamar stage fruit from each
cultivar along with a color-checker card and a ruler as a size standard
(Supplementary Figure 1). Pictures were taken on a white background with
a digital camera. For more detailed description please refer to Stephan
et al (Stephan et al., 2018). Out of 199 samples, only 179 fruit
samples were available for phenotypic data and used for the association
study. We measured fruit color by recording the intensity of the Red
(R), Green (G) & Blue (B) color channels (RGB) in each photograph for
each fruit using MIPAR Software (Sosa et al.,2014). The color channel
intensity of multiple fruit was calculated separately and then averaged
for each cultivar. The average intensity of each color channel (R, G
&B) and the ratio of the color channel such as R/G, R/B & G/B were
used as phenotype data for the association mapping study.