Abstract
The larvae of C. capitata occupy a discontinuous environment constituted by rotting fruits of several plant species. The consequences of this condition on the genetic structure were studied in a natural population by analyzing the polymorphism at the Est-1 (pupal esterase) locus by means of Wright's fixation indices. The results indicate that each fruit is colonized by a finite and small number of inseminated females (about four). The relations among the corresponding FIS, FIT and FST indices of each one of the three alleles detected in the population was not the same and the genotypic frequencies in the whole population differed from Hardy–Weinberg expectations, suggesting that some kind of selection might be acting on the Est-1 locus or linked loci.
Similar content being viewed by others
Article PDF
References
Bedo, D G. 1986. Polytene and mitotic chromosome analysis in Ceratitis capitata. Can J Genet Cytol, 28, 180–188.
Cladera, J L. 1981. Genética de alozimas en Ceratitis capitata. I. Dos alelos de la esterasa pupal. Mendeliana, 5, 33–38.
Dobzhansky, T H. 1970. Genetics of the Evolutionary process. Coumbia University Press, New York-London.
Dobzhansky, T H, Ayala, F J, Stebbins, G L, and Valen-Tine, J W. 1980. Evolucióon. Ed. Omega, Barcelona.
Feron, M. 1962. L'instinct de reproduction chez la mouche Mediterranéene des fruits. Rev Pathol Végét Entom Agric, 41, 1–129.
Gasperi, G, Malacrida, A R, and Milani, R. 1987. Protein variability and population genetics of Ceratitis capitata. In Economopoulos, A. P. (ed.) Fruit Flies. Proceeding of the II International Symposium. Elsevier, pp. 149–157.
Hedrick, P W. 1983. Genetics of Populations. Science Books International, Boston.
Kourti, A, Loukas, M, and Economopoulos, A. 1985. Genetic studies in medfly populations. Report on Research Coordination Meeting on the Development of Sexing Mechanisms in Fruit Flies. FAO IAEA, Vienna (Mimeo-graphed).
Levins, R. 1968. Evolution in Changing Environments. Princeton University Press, Princeton.
Li, C C, and Horvitz, D G. 1953. Some methods of estimating the inbreeding coefficient. Am J Hum Genet, 5, 107–117.
Long, J C. 1986. The allelic correlation structure of Gainj-and Kalam-speaking people. I. The estimation and interpretation of Wright's F-statistics. Genetics, 112, 629–647.
Morgante, J S, De Souza, H M L, De Conti, E, and Cytrynowicz, M. 1981. Allozymic variability in an introduced fruit fly pest Ceratitis capitata (Wiedeman), 1824, (Diptera-Tephritidae). Rev Bras Genet, 4, 183–191.
Mukiama, T K. 1985. East African strains of Ceratitis capitata. Occurrence and enzyme variation. Report on Research Coordination Meeting on the Development of Sexing Mechanisms in Fruit Flies. FAO/IAEA, Vienna (Mimeo-graphed).
Nei, M. 1965. Variation and covariation of gene frequencies in subdivided populations. Evolution, 19, 256–258.
Nei, M. 1975. Molecular Population Genetics and Evolution. North Holland/American Elsevier, Oxford-New York.
Nei, M. 1977. F-statistics and analysis of gene diversity in subdivided populations. Ann Hum Genet, 41, 225–233.
Nei, M. 1977. F-statistics and analysis of gene diversity in subdivided populations. Ann Hum Genet, 41, 225–233.
Nei, M, and Chesser, R K. 1983. Estimation of fixation indices and gene diversities. Ann Hum Genet, 47, 253–259.
Nei, M, and Imaizumi, Y. 1966. Genetic structure of human populations. I. Local differentiation of blood group gene frequencies in Japan. Heredity, 21, 9–35.
Prokopy, R J, Ziegler, J R, and Wong, T T Y. 1978. Deterrence of repeated oviposition by fruit-marking pheromone in Ceratitis capitata. J Chem Ecol, 4, 55–63.
Prokopy, R J, Papaj, D R, Opp, S B, and Wong, T T Y. 1987. Intra-tree foraging behaviour of Ceratitis capitata flies in relation to host fruit density and quality. Entomol exp appl, 45, 251–258.
Rasmussen, D I. 1979. Sibling clusters and genotype frequencies. Am Nat, 113, 948–951.
Robertson, A. 1965. The interpretation of genotypic ratios in domestic animal populations. Anim Prod, 7, 319–324.
Saidman, B O, and Naranjo, C A. 1982. Variaciones de esterasas en poblaciones de Prosopis ruscifolia (Leguminosae). Mendeliana, 5, 61–70.
Saidman, B, Vilardi, J, Cladera, J, Civetta, A, and Leanza, C. 1987. Caracterización isoenzimática de una Población natural de Ceratitis capitata. Actas XVIII Congr Argent Genét(Buenos Aires), 60.
Santos, M, Ruiz, A, and Fontdevila, A. 1989. The evolutionary history of Drosophila buzzatii. XIII. Random differentiation as a partial explanation of chromosomal variation in a structured natural population. Amer Nat, 133, 183–197.
Sokal, R R, and Rohlf, F J. 1981. Biometry, 2nd edn. W. H. Freeman, New York.
Teran, H R. 1977. Comportamiento alimentado y su corre-Lación a la reproducción en hembras de Ceratitis capitata (Wied.). Rev Agronom NO Argent, 14, 17–34.
Valentine, J W. 1976. Genetic strategies of adaptation. In Ayala, F. J. (ed.) Molecular Evolution. Sinauer Sunderland, Massachusetts, pp. 78–94.
Vilardi, J C. 1989. Un programa BASIC para calcular indices de fijación (F). Mendeliana, in press.
Wright, S. 1951. The genetical structure of populations. Ann Eugen, 15, 323–354.
Wright, S. 1951. The genetical structure of populations. Ann Eugen, 15, 323–354.
Wright, S. 1965. The interpretation of population structure by F-statistics with special regard to systems of mating. Evolution, 19, 395–420.
Zacharopoulou, A. 1987. The salivary gland chromosomes of the Mediterranean fruit fly, Ceratitis capitata. In Economopoulos, A. P. (ed.) Fruit flies. Proceeding of the II International Symposium. Elsevier., 177 (Abstr.).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Civetta, A., Vilardi, J., Saidman, B. et al. Estimation of the number of ovipositing females per fruit in the Mediterranean fruit fly Ceratitis capitata Wied. (Diptera: Tephritidae). Heredity 65, 59–66 (1990). https://doi.org/10.1038/hdy.1990.70
Received:
Issue Date:
DOI: https://doi.org/10.1038/hdy.1990.70