QTL mapping in pigs: empirical distribution of the LRT at various locations. Results are based on 2000 simulations in a population of 4 sires and 325 offspring. The line represents the density obtained with a Kernel method, the dotted line represents the density of a χ2 with 4 d.f.
Wang et al. BMC Genetics 2012 13:29 doi:10.1186/1471-2156-13-29