Influence ofβ-alanine on mating and territorialism inDrosophila melanogaster (original) (raw)
Abstract
Effects of β-alanine on mating behavior and aggression were studied in_Drosophila melanogaster_ using the following competitive pairs: (1) homozygous black (b/b) flies, in which β-alanine synthesis is decreased, vs. alanine is blocked vs. wild-type (e +/e+) flies; (2) dark flies, in which β-alanine incorporation is reduced, owing mainly to chromosome 3, vs. light flies collected from the same population as were the dark flies; (3) homozygous black (b/b) flies, in which β-alanine synthesis is decreased, vs. β-alanine-injected_b/b_ flies, which are phenocopies of wild-type flies. The behavior of mixed-sex groups was studied in a large, illumination-graded observation chamber containing food and in small uniformly illuminated cells also containing food. The relative competitive mating abilities of these types were measured in both experimental conditions. Uninjected black flies, but not injected ones, showed weak and unsteady gait and weak wing extension. In ebony these abnormalities were more extreme. Dark flies did not show these abnormalities. Accelerated sexual maturation was indicated in males by early onset of courtship and enhanced territorial aggression and in females by earliness of mating. Such acceleration was observed in ebony and dark flies, compared with light flies, and among β-alanine-injected_b/b_ flies competing with uninjected black flies. Ebony males, although maturing earlier than wild-type males, were less successful than wild-type males in mating. This difference was even greater when the flies were all allowed to mature before competing. Ebony females outmated wild-type females. Dark flies outmated light flies, and β-alanine-injected_b/b_ males outmated uninjected black males, especially in bright light. Ebony flies mated much longer than wild-type flies, and black flies mated slightly longer than injected_b/b_ flies. There was some spatial isolation of ebony from wild type, dark from light, and β-alanine-injected from uninjected_b/b_ flies in the illumination-graded observation chamber. Ebony flies more than wild type concentrated near food. Flies were attracted to the current of moist inlet air. They were also attracted to deposited excrement, and males defended such deposits as a mating area, thus showing rudiments of arena behavior in which a mating area away from the oviposition site is defended. Usually, however, the defended area focused on food.
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References
- Averhoff, W. W., and Richardson, R. H. (1976). Multiple phermone system controlling mating in_Drosophila melanogaster Proc. Natl. Acad. Sci._,73:591–593.
Google Scholar - Dow, M. A., and von Schilcher, F. (1975). Aggression and mating success in_Drosophila melanogaster_.Nature 254:511–512.
Google Scholar - Elens, A. A. (1957). Importance selective des differences d'activite entre males ebony et sauvage, dans les populations artificialles de_Drosophila melanogaster_.Experientia 13:293–297.
Google Scholar - Jacobs, M. E. (1955). Studies on territorialism and sexual selection in dragonflies.Ecology 36:566–586.
Google Scholar - Jacobs, M. E. (1960). Influence of light on mating of_Drosophila melanogaster, Ecology_ 41:182–188.
Google Scholar - Jacobs, M. E. (1961). The influence of light on gene frequency changes in laboratory populations of ebony and non-ebony_Drosophila melanogaster_.Genetics 46:1089–1095.
Google Scholar - Jacobs, M. E. (1966). Deposition of labeled beta-alanine in ebony and non-ebony_Drosophila melanogaster_ with notes on other amino acids.Genetics 53:777–784.
Google Scholar - Jacobs, M. E. (1968). β-alanine use by ebony and normal_Drosophila melanogaster_ with notes on glucose, uracil, DOPA, and DOPAmine.Biochem. Genet. 1:267–275.
Google Scholar - Jacobs, M. E. (1974). Beta-alanine and adaptation in_Drosophila_.J. Insect Physiol. 20: 859–866.
Google Scholar - Jacobs, M. E. (1976). Binding of beta-alanine, DOPAmine, and DOPA 1-C-14 by normal, ebony, and dark_Drosophila melanogaster_ cuticles.Insect Biochem. 6:497–499.
Google Scholar - Jacobs, M. E. (1978). Beta-alanine tanning of_Drosophila_ cuticles and chitin.Insect Biochem. 8:37–41.
Google Scholar - L'Heritier, P., Neefs, Y., and Teissier, G. (1937). Apterisme des insects et selection naturelle.Compt. Rend. (Paris) 204:907–909.
Google Scholar - Morgan, T. H., and Bridges, C. B. (1919). The inheritance of a fluctuating character.J. Gen. Physiol. 1:639–643.
Google Scholar - Noble, G. K. (1939). Symposium on the individual vs. the species. IV. The role of dominance in the social life of birds.Auk 56:263–273.
Google Scholar - Scheffé, H. (1958).The Analysis of Variance, Wiley, New York.
Google Scholar - Spieth, H. T. (1968). Evolutionary implications of sexual behavior in_Drosophila_.Evol. Biol. 2:157–193.
Google Scholar
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- Goshen College, 46526, Goshen, Indiana
M. E. Jacobs
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- M. E. Jacobs
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This work was supported by Grant GM-18680 from the National Institutes of Health.
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Jacobs, M.E. Influence of_β_-alanine on mating and territorialism in_Drosophila melanogaster_.Behav Genet 8, 487–502 (1978). https://doi.org/10.1007/BF01067478
- Received: 19 June 1978
- Accepted: 03 August 1978
- Issue Date: November 1978
- DOI: https://doi.org/10.1007/BF01067478