Figure 4
From: Familial occurrence of Danish and Dutch cases of the bovine brachyspina syndrome
Genealogic diagram showing the genetic relationship between four cases of the brachyspina syndrome. Three Danish cases of the bovine brachyspina syndrome (DK1–3) and a Dutch case (NLD1) are genetically related within 6 generations. Each affected calf is the result of breeding between genetically related animals and all parents are related to a common ancestor (A) in generation VI, often through his son (B). □ = phenotypically normal male; ○ = phenotypically normal female; ■ = affected male; ● = affected female.