Fig. 4

Estimation of color intensity. Color intensity represents sum of color intensities of signals from red (R), green (G), and blue (B) channels. a Average ratio of R to G intensities from all genotypes for a respective treatment (control or HNT) and time-point (week 1, 2, and 3) is shown. Box plot represents range, media and mean (red triangle) of the R to G ratio. Means connected with same letter are not significantly different from each other (Student’s t-test; p < 0.1). b Heat map of R to G ratio for different genotypes under control and HNT