Skip to main content
. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Ann N Y Acad Sci. 2012 May;1256:E1–22. doi: 10.1111/j.1749-6632.2012.06748.x

Figure 4.

Figure 4

BDM incompatibilities and sex-linked alleles. Incompatibilities are shown for the F1 generation (panel A) and for the F2 generation (panel B). An XY system is assumed, and colors reveal whether hybrid compatibilities are sex biased. Gray: both sexes are affected equally. White: neither sex affected. Red: greater fitness reduction in the homogametic sex (females). Blue: greater fitness reduction in the heterogametic sex (males), consistent with Haldane’s rule. Sex-biased patterns in the F1 generation exhibit parent-of-origin effects. Individuals that are homozygous for recessive alleles can be observed in the F2 generation.