Approximated Variance of Inbreeding Coefficient due to Multiple Paths in a Pedigree.
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Accession number;00A0751181
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| Title;Approximated Variance of Inbreeding Coefficient due to Multiple Paths in a Pedigree. |
| Author;
OIKAWA T
(Okayama Univ., Okayama-shi, Jpn)
KUNIEDA T
(Okayama Univ., Okayama-shi, Jpn)
SATO K
(Okayama Univ., Okayama-shi, Jpn)
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Journal Title;Anim Sci J
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Journal Code:F0902A
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ISSN:1344-3941
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VOL.71;NO.4;PAGE.348-352(2000)
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| Figure&Table&Reference;FIG.1, TBL.2, REF.4 |
| Pub. Country;Japan |
| Language;English |
| Abstract;The actual variance of the inbreeding coefficient was derived for a pedigree with multiple paths to foundation animals. For each path, variances of the inbreeding coefficients were computed by the procedure using a theory on variable segments in a chromosome. Covariances between the actual inbreeding coefficients corresponding to the individual paths are necessary for computing the total variance of the inbreeding coefficient. The covariance can be approximated by an equation comparable to the one for estimation of variance of the inbreeding coefficient for a single path in a pedigree, depending on the inbreeding coefficients, the coefficient of variation of the length of the chromosome segment and the number of chromosome segments. The analytical variances estimated for pedigrees generally agreed with the simulated values. Numerical examples are also presented. (author abst.) |
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