• Body size and mating success inDrosophila willistoni are uncorrelated under laboratory conditions

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    • Keywords


      Drosophila willistoni; mating success; sexual behaviour; body size

    • Abstract


      Mating activity and wing length were investigated in the F1 progeny ofDrosophila willistoni females collected in the field to examine any possible relationship between body size and mating success. The flies were observed in a mating chamber under laboratory conditions. No significant differences in wing length were observed between copulating and noncopulating flies, and there was no significant correlation between wing length and copulation latency for both males and females. These results therefore suggest that the commonly accepted view that large body size is positively correlated with mating success inDrosophila does not always hold true. The results support the view that the extent of environmentally induced variation in body size may be an important factor in determining whether an association between body size and mating success is observed inDrosophila species.

    • Author Affiliations


      L. Basso Da Silva1 V. L. S. Valente1

      1. Departamento de Genética, Instituto de BiociÊncias, Universidade Federal do Rio Grande do Sul, Caixa Postal 15053, Porto Alegre, RS - 91501-970, Brazil
    • Dates

  • Journal of Genetics | News

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      Posted on July 25, 2019

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