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Possible biases in heritability estimates from intraclass correlation.

Author information

Affiliations

  • 1. School of Wool and Pastoral Sciences, University of New South Wales, Kensington, Australia.
      Authors
    • Ponzoni RW 1
    (1 author)

TAG. Theoretical and Applied genetics. Theoretische und Angewandte Genetik, 01 Jan 1978, 53(1):25-27
https://doi.org/10.1007/bf00273132 PMID: 24311205 

Abstract 

There is an inherent bias in intraclass correlations since the expectation of a ratio does not equal the ratio of expectations. A simple accurate approximation for this bias is derived, and it is found that the inherent bias is usually negligible. Selection of sires is known to bias half-sib heritability estimates, and appropriate formulae are given and discussed.

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Read article at publisher's site: https://doi.org/10.1007/bf00273132

References 

Articles referenced by this article (7)

  • Buckland, R.B.: Genetic influences on the activity of some enzymes in fresh and stored chicken semen and their relationships to fertility. In: R. Bogart (Ed.), Genetics Lectures, Vol.4, 39–67. Corvallis: Oregon State U.P. 1975
  • Cochran, W.G.: Improvement by means of selection. Proc. 2nd. Berkeley. Symp. Math. Statist. Probab. 1950, 449–470 (1951)
  • Ginsburg, E.H.: On the planning of the experiment on estimation of intraclass correlation. Biom. Z. 15, 47–52 (1973)
  • Morley, F.H.W.: Selection for economic characters in Australian Merino sheep. V. Further estimates of phenotypic and genetic parameters. Aust. J. agric. Res. 6, 77–90 (1955)
  • Pederson, D.G.: The estimation of heritability and degree of dominance from a diallel cross. Heredity 27, 247–264 (1971)
  • Reeve, E.C.R.: Studies in quantitative inheritance. III. Heritability and genetic correlation in progeny tests using different mating systems. J. Genet. 51, 520–542 (1953)
  • Rønningen, K.: The effect of selection of progeny performance on the heritability estimated by half-sib correlation. Acta Agric. Scand. 22, 90–92 (1972)

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