Figure 4.

Grain trait analysis of wild (red boxes, 34 grains) and domesticated (blue boxes, 122 grains) emmer wheat. Horizontal lines in boxplots represent the median, boxes indicate the upper and lower interquartile range, whiskers indicate the largest and smallest values within 1.5 times the interquartile range and points indicate outliers outside this range for grain volume (a), length (b), width (c), depth (d), surface area (e) and surface area to volume ratio (f). Asterisks indicate that the values are significantly different at P < 0.01, ns, not significant.