Fig. 3: Island-specific evolution of chromosome 1 heterozygosity.
From: Island-specific evolution of a sex-primed autosome in a sexual planarian
a, Collection sites of 72 wild isolates from the Mediterranean islands and Tunisia. b, Maximum-likelihood tree of 2 asexual isolates from Menorca (MEN_GOR) and 70 sexual isolates from Sardinia (SAR), Corsica (COR), Sicily (SIC) and Tunisia (TUN). Dots denote individual worms, with colours corresponding to their collection sites. c, Observed versus expected heterozygosity for each chromosome (denoted by colour) in each population (denoted by shape). The dashed line corresponds to equality between observed values and those expected under Hardy–Weinberg equilibrium; the deviation of the points corresponding to chromosome 1 in the COR and SAR samples from the expectation is notable. d, e, Number of sites with heterozygosity in >80% of the population per 10-kb window along chromosome 1 (left) and chromosome 3 (right) in Sardinia (d) and Sicily (e).
