Approximated Variance of Inbreeding Coefficient due to Multiple Paths in a Pedigree

• OIKAWA Takuro

  Faculty of Agriculture, Okayama University

• KUNIEDA Tetsuo

  Faculty of Agriculture, Okayama University

• SATO Katsunori

  Faculty of Agriculture, Okayama University

抄録

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.

収録刊行物

• 日本畜産学会報

  日本畜産学会報 71 (4), 348-352, 2000

  公益社団法人 日本畜産学会

キーワード

• Inbreeding
• Variance
• Methodology
• Chromosomes
• Computer simulation

詳細情報

• CRID: 1390282680173554816
• NII論文ID: 130000742534
• NII論文ID: 10021721156
• NII論文ID: 10020390381
• NII書誌ID: AN00195188
• DOI: 10.2508/chikusan.71.348
• ISSN: 18808255
• ISSN: 00215309
• ISSN: 1346907X
• NDL書誌ID: 5414335
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5414335
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
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