The classic finding in both flowering plants and mammals that hybrid lethality often depends on parent of origin effects suggests that divergence in the underlying loci might be an important source of hybrid incompatibilities between species. In flowering plants, there ... View more
0.02, N =20; M. tilingii: mean = 0.56, SE = 0.02, N = 20), both had much higher 4.6 cM/Mb (range = 3.4-8.1 cM/Mb, σ = 1.2 cM/Mb). The genome-wide estimate of (1318 Alignment/Map format and SAMtools. Bioinformatics 25: 2078-2079.
Figure 3. Transmission ratio distortion across the M. guttatus x M. tilingii linkage map. For each of the 14 linkage groups, homozygous parental genotypes at marker loci are shown in red (M.
guttatus, GG) and blue (M. tilingii, TT). For each marker, the vertical positions of the red and blue dots show the deviations of genotype frequencies from the Mendelian expectation of 0.25. Note that the M. tilingii homozygote (TT) deviations are plotted directly [deviation = (frequency of TT) - 0.25] and the M. guttatus (GG) deviations are plotted as negative [deviation = - ((frequency of GG) - 0.25)]. As a result, the values above the zero line show excesses of TT homozygotes or deficits of GG homozygotes and values below the zero line show excesses of GG homozygotes or deficits of TT homozygotes. Horizontal bars beneath linkage groups indicate regions with excess GG (red), TT (blue), or heterozygotes (purple).