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Variance of actual inbreeding derived from the number and variance of chromosome segment
Author(s) -
Oikawa By T.,
Sato K.,
Takahashi S.
Publication year - 1999
Publication title -
journal of animal breeding and genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.689
H-Index - 51
eISSN - 1439-0388
pISSN - 0931-2668
DOI - 10.1046/j.1439-0388.1999.00223.x
Subject(s) - inbreeding , pedigree chart , identity by descent , statistics , population , biology , variance (accounting) , genetics , mathematics , evolutionary biology , allele , demography , haplotype , accounting , business , sociology , gene
The inbreeding coefficient ( F ) is used as a central parameter inferring a proportion of alleles identical by descent within an individual and by genetic variability within a population. The actual inbreeding coefficient varies around a central value, the inbreeding coefficient. C ockerham and W eir (1983) derived the method for computing the variance of inbreeding while reviewing several other methods. The variance of inbreeding in their report was considered to be of two components: one within population and the other between population of varied pedigrees. If pedigree is fixed, F is easily computed for an individual by the standard method (F alconer 1989). For domestic animals, pedigree information is usually available because it is requisite for a programme of genetic improvement. In this study, the variance of inbreeding coefficient was derived for an individual with a pedigree having a single path to a foundation animal.