Fig. 4

Boxplot of plant traits across groups of genomic heterozygosity for boll number (a) and seed set weight (b). Multiple group comparisons were performed using one-way ANOVA followed by Tukey’s multiple comparison tests. The bottoms and tops of the boxes represent 25 and 75 %, respectively; the bands near the middle indicate the median. The ends of the whiskers represent 10 and 90 %. The letters above the boxes indicate significant differences between the groups. Groups that do not share a letter differ significantly (p < 0.05)