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Mating success and wing morphometry in Drosophila melanogaster after long-term rearing on different diets

In: Behaviour
Authors:
Jelena Trajković aUniversity of Belgrade, Institute for Biological Research ‘Siniša Stanković’, Despota Stefana Boulevard 142, 11000 Belgrade, Serbia

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Sofija Pavković-Lučić bUniversity of Belgrade, Faculty of Biology, Studentski trg 16, 11000 Belgrade, Serbia

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Tatjana Savić aUniversity of Belgrade, Institute for Biological Research ‘Siniša Stanković’, Despota Stefana Boulevard 142, 11000 Belgrade, Serbia

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Different environmental factors are important for development, physiology, behaviour and, therefore, adaptation of Drosophila species. Additionally, the presence of genetic and phenotypic variation in traits affecting mate choice forms the basis for sexual selection that may lead to isolation between populations in different nutritive environments. The aim of this research was to determine mating success and wing morphometry of Drosophila melanogaster flies after more than a decade of growing on banana and carrot substrates. Males and females reared on carrot medium were more successful in mating than flies reared on banana diet. Females originating from banana medium rather chose males originating from carrot substrate, while females developed on carrot medium equally chose males developed on both substrates. Differences in wing size and shape were observed between sexes and nutritional strains. Furthermore, the results showed absence of ethological isolation between two ‘nutritional’ strains.

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