Genetic basis of some morphological differences between temperate and equatorial populations of Drosophila melanogaster. 1995

M Chakir, and J R David, and E Pla, and P Capy
Laboratoire Populations, Génétique et Evolution, CNRS, Gif-sur-Yvette, France.

The genetic basis of three morphological traits (ovariole number, sternopleural bristle number and wing length) of Drosophila melanogaster has been investigated in natural populations that show great differences in these traits, i.e. Bordeaux (France) and Loua (Congo). F1 and F2 crosses, and chromosome substitutions between these two populations, were analysed. Maternal and/or X chromosome effects were found for sternopleural bristle number and wing length. For all traits, significant effects from each of the three chromosomes were found, but in general only one or two chromosomes had a major effect. Moreover, in all cases significant interactions between chromosomes were observed, suggesting the existence of epistatic effects. Our results are discussed and compared to those obtained from the analysis of selected laboratory strains.

UI MeSH Term Description Entries
D004331 Drosophila melanogaster A species of fruit fly frequently used in genetics because of the large size of its chromosomes. D. melanogaster,Drosophila melanogasters,melanogaster, Drosophila
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014921 Wings, Animal Movable feathered or membranous paired appendages by means of which certain animals such as birds, bats, or insects are able to fly. Animal Wing,Animal Wings,Wing, Animal

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