Fig. 8
From: Germline mutation within COL2A1 associated with lethal chondrodysplasia in a polled Holstein family
Pedigree of the three bulldog calves sired by the polled Holstein bull Energy P. The polled Holstein bull Energy P has a normal phenotype and three progeny show the bulldog form of chondrodysplasia. Sires A and B are common ancestors of Energy P and dams sired by Energy P. Energy P is inbred on sire B. A normal progeny from Energy P is inbred on ancestor B and another normal progeny from Energy P is inbred on ancestors A and B