Developmental constraints in the Drosophila wing

Selection experiments for shortening the four longitudinal veins in a wild population of Drosophila melanogaster have been performed to evaluate how a local change is integrated in the wing development. Our results show that, though many units of selection seem to exist within a given organ, these a...

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Bibliographic Details
Published in:Heredity 1997-12, Vol.79 (6), p.564-571
Main Authors: Guerra, Daniela, Pezzoli, Maria Cristina, Giorgi, Gianfranco, Garoia, Flavio, Cavicchi, Sandro
Format: Article
Language:English
Subjects:
Animals
Biomedical and Life Sciences
Biomedicine
Cytogenetics
Drosophila melanogaster - genetics
Ecology
Evolutionary Biology
Genetic Variation
Genetics, Population
Human Genetics
original-article
Plant Genetics and Genomics
Selection, Genetic
Veins
Wings, Animal - anatomy & histology
Wings, Animal - growth & development
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Summary:Selection experiments for shortening the four longitudinal veins in a wild population of Drosophila melanogaster have been performed to evaluate how a local change is integrated in the wing development. Our results show that, though many units of selection seem to exist within a given organ, these are strongly constrained within the developmental programme, in such a way that only some predictable forms are expected. The results are discussed in terms of the ‘Entelechia’ model proposed by Garcia-Bellido in which the intercalarity of positional values promoted by ‘martial’ genes in a given organ is the driving force for controlled cell proliferation.
ISSN:0018-067X
1365-2540
DOI:10.1038/hdy.1997.200