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. 2020 May 27;4(4):282–301. doi: 10.1002/evl3.175

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© 2020 The Authors. Evolution Letters published by Wiley Periodicals LLC on behalf of Society for the Study of Evolution (SSE) and European Society for Evolutionary Biology (ESEB).

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Visual genotypes of Lake Washington fish reveal historical recombination events within the Eda haplotype. (A) Wild‐caught adult stickleback from Lake Washington (n = 885) were genotyped at a subset of 16 SNPs or indels across the haplotype and SNP1. Most fish showed no evidence of recombination within the 16‐kb haplotype. (B) There is evidence of at least one historical recombination event within the haplotype in 198, or 22%, of the fish. The markers are depicted as triangles at their physical location relative to the haplotype and labeled at the bottom of the figure. Tick marks start at the beginning of intron 1 of Eda (the presumed start of the haplotype) and are spaced every 1000 bases. Genotypes are represented visually as CC (homozygous for the completely plated allele), CL (heterozygous), or LL (homozygous for the low‐plated, typically freshwater, allele), and extend halfway between each marker position. Missing genotypes are in white. The number of fish (n) and % of fish for each category of haplotype are listed on the right.