Figure 4From: Self-(in)compatibility genotypes of Moroccan apricots indicate differences and similarities in the crop history of European and North African apricot germplasmThe distribution and frequency of apricot S -alleles in Morocco. The lengths of the black columns are proportional to the percentage frequency of specific S-alleles in a region (marked by grey spot), n is the number of sampled trees in each of the agro-ecosystems.Back to article page