Fig. 4

Relative haplotype sharing and genotypes of individuals from DrFwB, DrFw, and DB. a Distribution of relative identity-by-descent (rIBD) on chromosome 1, showing the relative fraction of haplotype blocks shared between DrFwB and DB (positive rIBD) and DrFwB and DrFw (negative rIBD). The red and blue dashed lines denote the HMGA2 related region and a long stretch of DB introgressed region. b Zooming in on the HMGA2 related interval on chromosome 1 highlighted by the red dashed lines. c The DB introgressed region on chromosome 1 (49.2–51.3 Mb) is indicated by the blue dashed lines. d Individual genotypes of the representative DB introgressed region (50.7–51.0 Mb) are visualized for each locus: homozygous reference allele (blue), homozygous alternative allele (yellow), heterozygous locus (green)