Abstract
Fisher's theory of the evolution of female mating preference depends on the crucial premise that the preferences for specific male phenotypes are genetic. In natural populations of the Two-spot Ladybird, Adalia bipunctata, females prefer to mate with melanic males. We have created high and low lines of this preference: in the high line, we selected females that mated with melanic males; in the low line, we selected those that mated with non-melanic males. Two replicates of each line have been maintained. In the high line, the preference rose from 20 per cent of females preferring melanic males in the base population to 65 per cent after nine generations of selection. In the low line, the preference has been virtually eliminated.
The rapid response to selection shows that the female preference is highly heritable. Its heritability can be estimated from the response. We derive formulae for the estimation of the heritability and its variance according to two different genetic models of preference. In one model, a preferential mating tendency is assumed to be normally distributed and hence determined by many genes. In the other model, the preference is an all-or-nothing character such as might be determined by a single gene. All our experiments have shown a large initial response to selection. The normally distributed polygenic model gives heritabilities that are consistently too high when calculated from the initial response. The single gene model gives more realistic estimates.
As a sociobiological theory of the evolution of sexual behaviour and sexual differences, sexual selection now rests on a secure foundation: females do prefer some males to others; their preferences are genetic and evolve along with the preferred characters of the males.
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Andersson, M. 1982. Female choice selects for extreme tail length in a widow bird. Nature, 299, 818–820.
Darwin, C R. 1871. The Descent of Man and Selection in Relation to Sex. John Murray, London.
Ehrman, L. 1967. Further studies on genotype frequency and mating success in Drosophila. Amer Natur, 101, 415–424.
Ehrman, L. 1968. Frequency-dependence of mating success in Drosophila pseudoobscura. Genet Res, Camb, 11, 135–140.
Ehrman, L. 1970. The mating advantage of rare males in Drosophila. Proc Nat Acad Sci, USA, 65, 345–348.
Ehrman, L. 1972. Genetics and sexual selection. In Sexual Selection and the Descent of Man 1871–1971, B. Campbell (ed.), pp. 105–135 Heinemann, London.
Falconer, D S. 1965. The inheritance of liability to certain diseases, estimated from the incidence among relatives. Ann Hum Genet, Lond, 29, 51–76.
Falconer, D S. 1967. The inheritance of liability to diseases with variable age of onset, with particular reference to diabetes mellitus. Ann Hum Genet, Lond, 31, 1–20.
Farr, J A. 1977. Male rarity or novelty, female choice behaviour, and sexual selection in the guppy, Poecilia reticulata Peters (Pisces: Poeciliidae). Evolution, 31, 162–168.
Fisher, R A. 1930. The Genetical Theory of Natural Selection. The Clarendon Press, Oxford.
Grant, B, Snyder, G A, and Glessner, S F. 1974. Frequency-dependent mate selection in Mormoniella vitripennis. Evolution, 28, 259–264.
Karlin, S, and Raper, J. 1979. Sexual selection encounter models. Theor Pop Biol, 15, 246–256.
Kirkpatrick, M. 1982. Sexual selection and the evolution of female choice. Evolution, 36, 1–12.
Lande, R. 1981. Models of speciation by sexual selection on polygenic traits. Proc Nat Acad Sci, USA, 78, 3721–3725.
Majerus, M E N, O'Donald, P, and Weir, J. 1982a. Evidence for preferential mating in Adalia bipunctata. Heredity, 49, 37–49.
Majerus, M E N, O'Donald, P, and Weir, J. 1982b. Female mating preference is genetic. Nature, 300, 521–523.
Muggleton, J. 1979. Non-random mating in wild populations of polymorphic Adalia bipunctata. Heredity, 42, 57–65.
O'Donald, P. 1962. The theory of sexual selection. Heredity, 17, 541–552.
O'Donald, P. 1967. A general model of sexual and natural selection. Heredity, 22, 499–518.
O'Donald, P. 1978a. Theoretical aspects of sexual selection: a generalized model of mating behaviour. Theor Pop Biol, 13, 226–243.
O'Donald, P. 1978b. A general model of mating behaviour with natural selection and female preference. Heredity, 40, 427–438.
O'Donald, P. 1980. Genetic Models of Sexual Selection. Cambridge University Press, Cambridge.
O'Donald, P, and Majeruss, M E N. 1984. Polymorphism of melanic ladybirds maintained by frequency-dependent sexual selection. Biol J Linn Soc, 23, 101–111.
O'Donald, P, and Muggleton, J. 1979. Melanic polymorphism in ladybirds maintained by sexual selection. Heredity, 43, 143–148.
Semler, D E. 1971. Some aspects of adaptation in a polymorphism for breeding colours in the Threespine Stickleback (Gasterosteas aculeatus). J Zool Lond, 165, 291–302.
Spiess, E B. 1968. Low frequency advantage in mating of Drosophila pseudoobscura karyotypes. Amer Natur, 102, 363–379.
Spiess, L D, and Spiess, E B. 1969. Minority advantage in interpopulational matings of Drosophila persimilis. Amer Natur, 103, 155–172.
Spiess, E B, and Ehrman, L. 1978. Rare male mating advantage. Nature, 272, 188–189.
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O'Donald, P., Majerus, M. Sexual selection and the evolution of preferential mating in ladybirds I. Selection for high and low lines of female preference. Heredity 55, 401–412 (1985). https://doi.org/10.1038/hdy.1985.124
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DOI: https://doi.org/10.1038/hdy.1985.124
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