Comparison of bicoid-dependent regulation of hunchback between Musca domestica and Drosophila melanogaster. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Mechanisms of Development Année : 1997

Comparison of bicoid-dependent regulation of hunchback between Musca domestica and Drosophila melanogaster.

François Bonneton
Philip J Shaw
  • Fonction : Auteur
Claire Fazakerley
  • Fonction : Auteur
Min Shi
  • Fonction : Auteur
Gabriel A Dover
  • Fonction : Auteur

Résumé

Co-evolution between developmental regulatory elements is an important mechanism of evolution. This work compares the hunchback-bicoid interaction in the housefly Musca domestica with Drosophila melanogaster. The Musca HUNCHBACK protein is 66% conserved and partially rescues a hunchback mutant, yet the BICOID-dependent promoter (P2) of Musca hunchback is unexpectedly diverged from D. melanogaster. Introduced into D. melanogaster, this promoter drives a normal P2 pattern during the syncytial blastoderm stage but is expressed ectopically at the anterior pole of the embryo at later stages. We also report differences in the early expression of hunchback in Musca. We suggest that conservation of the morphogenetic function of bicoid in different sized embryos of higher diptera requires co-evolution of bicoid and its target binding sites.
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Dates et versions

hal-04227468 , version 1 (06-10-2023)

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  • HAL Id : hal-04227468 , version 1

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François Bonneton, Philip J Shaw, Claire Fazakerley, Min Shi, Gabriel A Dover. Comparison of bicoid-dependent regulation of hunchback between Musca domestica and Drosophila melanogaster.. Mechanisms of Development, 1997, 66, pp.143-156. ⟨hal-04227468⟩
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