Consanguineous Mates

• Mating of two kins causes an individuals and his siblings to be ``promoted'' up a generation or two to that of his mate. This introduces loops into the pedigree diagram.

  
  
  
  

• An example bad pegree diagram caused by consanguineous multiple mating of ``6'' and ``13''.
  
  

  
  
  
  

• Default solution:
  • Allow siblings to occupy different levels in this case and
  • Move mate from older generation down to the level of mate from younger generation
  
  

  
  
  
  

• Alternative solution: Use alias to convert consanguineous mating into ``normal'' mating
  • Suppose x mate y is consanguineous
  • Suppose x is from younger generation
  • Introduce alias x'
  • Replace x mate y by x' mate y
  • Treat x' as orphan mate