Fig. 3.

Octoploid allele sharing and heterozygosity.(A, B) Euler diagrams depicting the distributions of shared and private alleles among South American F. chiloensis, North American F. chiloensis, F. virginiana, and Fragaria × ananassa individuals. Shared and private allele percentages and heterozygosities were estimated from 41.8 M SNPs and INDELs. (A) Euler diagram for a minor allele frequency (MAF) = 0.00, which depicts the overlap of both common and rare alleles. (B) Euler diagram for MAF = 0.05, which depicts the overlap of common alleles only for loci with MAF ≤ 0.05. (C) Box-and-whisker plot distribution of heterozygosity (H = v/n) estimates for individuals in F. chiloensis, F. virginiana, and Fragaria × ananassa populations, where v,the number of heterozygous SNPs and INDELs observed in an individual and n,the number of nongap nucleotides in the octoploid genome. The boxes span 1.0 standard deviation, whereas the whiskers span 2.0 standard deviations. The median heterozygosity for each group is depicted by the heavy vertical bar within the box.