Figure 2 | Scientific Reports

Figure 2

From: Genome-wide association study and expression of candidate genes for Fe and Zn concentration in sorghum grains

Figure 2

Graphical representation of grain iron and zinc frequency distributions for all four combinations. Comb_1, _2, _3, _4, respectively, environments combination 1, 2, 3, and 4. Red color bars indicate the distribution of grain iron and blue color bars indicate the grain zinc distribution. The distribution of population is normal in all four combinations as described in Shapiro–Wilk test for normality in frequentist statistics. The Ryan-Joiner (RJ) statistic also confirms that phenotypic data follow a normal distribution.

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