Key points are not available for this paper at this time.
A graph theoretic definition of pedigrees is given and a distinction drawn between simple and complex pedigrees. Algorithms are presented to calculate the likeihood of any kind of pedigree, assuming only segregation at a finite set of loci, nonassortative mating and no environmental correlations; multiple births and consanguineous marriages are explicity allowed for. The formulation given can lead to more powerful genetic counselling, segregation analysis and linkage analysis.
Lange et al. (Wed,) studied this question.