Abstract
An allozymic survey of 11 populations of Anastrepha fraterculus Wied. (Diptera, Tephritidae) in 8 different hosts from the same orchard revealed very small levels of genetic distance (D = 0.002±0.001) between hosts. The data thus provide no evidence for host-dependent genetic differentiation. Low values of heterozygosity were observed (H = 0.050±0.28) and 6 loci out of 11 were monomorphic. Biological attributes of the species, such as its polyphagic regime, multivoltine pattern of reproduction, and seasonal changes in population size, are discussed in an attempt to explain the low variability.
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Ayala, F. J., Valentine, J. W., DeLaca, T. E. & Zumwalt, G. S., 1975. Genetic variability of the Antartic brachiopod Liothyrella notorcadensis and its bearing on mass extinction hypotheses. J. Paleontol. 49: 1–9.
Bateman, M. A., 1976. Fruit flies. In: DeLuchi, V. L. ed., Studies in biological control. Cambridge Univ. Press, pp. 11–49.
Bryant, E. H., 1974. On the adaptive significance of enzyme polymorphisms in relation to the environment. Am. Natur. 108: 1–19.
Bush, G. L., 1969. Sympatric host race formation and speciation in frugivorous flies of the genus Rhagoletis (Diptera, Tephritidae). Evolution 23: 237–251.
Bush, G. L., 1975. Sympatric speciation in phytophagous parasitic insects. In: Price, P. W. ed., Evolutionary strategies of parasitic insects and mites. Plenum, New York, pp. 187–206.
Johnson, G. B., 1974. Enzyme polymorphism and metabolism. Science 184: 28–37.
Levins, R., 1968. Evolution in changing environments. Princeton Univ. Press, Princeton, New Jersey.
Malavasi, A. & Morgante, J. S., 1981. Adult and larval population fluctuation of Anastrepha fraterculus and its relationship to host availability. Environ. Entomol. 10: 275–278.
Malavasi, A. & Morgante, J. S., 1982. Genetic variation in natural population of Anastrepha (Diptera, Tephritidae). Revta bras. Genet. 5: 263–278.
Malavasi, A., Morgante, J. S. & Zucchi, R. A., 1980. Biologia de ‘moscas-das-frutas’ (Diptera, Tephritidae) I: Lista de hospedeiros e distribuicao geografica. Revta bras. Biol. 40: 9–16.
Morgante, J. S., Malavasi, A. & Bush, G. L., 1980. Biochemical systematics and evolutionary relationships of Neotropical Anastrepha. Ann. Entomol. Soc. Am. 73: 622–630.
Nei, M., 1972. Genetic distance between populations. Am. Natur. 106: 283–292.
Nevo, E., 1978. Genetic variation in natural populations: patterns and theory. Theor. Pop. Biol. 13: 121–177.
Powell, J. R., 1975. Protein variation in natural population of animals. In: Dobzhansky, T., Hecht, M. K. & Steere, W. C., ed., Evolutionary Biology, vol. 8, Plenum Press, New York, pp. 79–119.
Somero, G. N. & Soule, M., 1977. Genetic variation in marine fishes as a test of the nich-variation hypothesis. Nature, Lond. 249: 191–193.
Steiner, W. W. N., 1977. Niche width and genetic variation in Hawaiian Drosophila. Am. Natur. 111: 1037–1045.
Valentine, J. W., 1976. Genetic strategies of adaptation. In: Ayala, F. J., ed., Molecular evolution. Sinauer Sunderland, Massachusetts, pp. 78–94.
Valentine, J. W. & Ayala, F. J., 1974. Genetic variability in krill. Proc. natn. Acad. Sci. U.S.A. 73: 658–660.
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Malavasi, A., Morgante, J.S. Population genetics of Anastrepha fraterculus (Diptera, Tephritidae) in different hosts: Genetic differentiation and heterozygosity. Genetica 60, 207–211 (1983). https://doi.org/10.1007/BF00122375
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DOI: https://doi.org/10.1007/BF00122375