We also identified two other variants in this line before the non-recombinant region was fully defined; a 27 bp inframe deletion in the Kmt2d gene which underlies Kabuki syndrome in humans [46] (Additional File 1: Fig. S6a), and a missense mutation in the gene Muc13 (Additional File 1: Fig. S6c, d). This evidence concerns the gene KMT2D and Kabuki syndrome.