The heritability of fitness: some single gene models |
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| Authors: | O. Mayo R. Bürger C. R. Leach |
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| Affiliation: | (1) Waite Agricultural Research Institute, The University of Adelaide, 5064 Glen Osmond, Australia;(2) Institute of Mathematics, University of Vienna, A-1090 Vienna, Austria;(3) Department of Genetics, The University of Adelaide, 5000 North Terrace, Adelaide, Australia;(4) Present address: CSIRO Divison of Animal Production, P.O.Box 239, 2148 Blacktown, N.S.W., Australia |
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| Abstract: | Summary Because directional selection exhausts additive-genetic variance, it is frequently claimed that the heritability of fitness should be very close to zero. However, mutation-selection balance generates a certain amount of additive-genetic variance, so that even parent-offspring measures of heritability may be greater than zero at equilibrium. Intra-generation heritability may also be non-zero, providing the potentials for genetic change following environmental change. |
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| Keywords: | Heritability Fitness Additive-genetic variance |
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