Summary of the genetic polymorphism indexes of sorghum individuals sampled in each ethnic group.

<p>N_i: number of samples, N_hh: number of households, <i>N_Al</i>_.: Mean number of observed alleles over the 18 loci, <i>R_Al</i>_.: unbiased allelic richness corrected for sample size, <i>H_e</i>: unbiased gene diversity, <i>H_o</i>: observed heterozygosity, <i>F_IS</i>: fixation index. The letters (a, b) next to the <i>R_Al</i>, <i>H_e</i> and <i>F_IS</i> values indicate the statistical significance of their differences between ethnic groups (Wilcoxon test) at a 5% level after correction for multiple testing (FDR). For a given index, ethnic groups with the same letter did not present significant differences.