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A restriction on. the space of genetic relationships
Author(s) -
THOMPSON E. A.
Publication year - 1976
Publication title -
annals of human genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.537
H-Index - 77
eISSN - 1469-1809
pISSN - 0003-4800
DOI - 10.1111/j.1469-1809.1976.tb00181.x
Subject(s) - kinship , space (punctuation) , correlation , expression (computer science) , mathematics , genetics , biology , computer science , sociology , geometry , anthropology , programming language , operating system
It was pointed out by Trustrum (1961) that even for non-inbred pairs of relatives it is possible for all four cross-parental kinship coefficients to be non-zero, and hence that the expression often assumed for the correlation between such relatives is not completely general. Van Aarde (1975) has recently made the same comment. We derive a restriction on the space of attainable Cotterman coefficients for a relationship between two arbitrary non-inbred relatives. This restriction implies that the form of the expression for the correlation is in fact general, although the components cannot always be interpreted as parental kinships.