title: The dual function of ovo/shavenbaby in germline and epidermis differentiation is conserved between Drosophila melanogaster and the olive fruit fly Bactrocera oleae.
abstract: The olive fruit fly Bactrocera oleae (B. oleae) is a major olive damaging pest in the Mediterranean area. As a first molecular analysis of a developmental gene in this insect, we characterised the ovo/shavenbaby (ovo/svb) gene. In Drosophila, ovo/svb encodes a family of transcription regulators with two distinct functions: ovo is required for female germline differentiation and svb controls morphogenesis of epidermal cells. Here, we report the cloning and characterisation of ovo/svb in B. oleae, showing that the ovo genomic organisation and complex pattern of germline transcription have been conserved between distantly related Dipterae. We further show that B. oleae svb embryonic expression precisely prefigures the pattern of larval trichomes, supporting the conclusion that regulatory changes in svb transcription underlie evolutionary diversification of trichome patterns seen among Dipterae.
authors.affiliation: Laboratoire de Biotechnologie Végétale et Agro-Alimentaire, Faculté des Sciences et Techniques de Fès-Saïss, Université Sidi Mohammed Ben Abdellah, route de Imouzer, BP2202 Fès, Morocco.
authors.forename: Abderrahman
authors.initials: A
authors.lastname: Khila
authors.forename: Ahmed
authors.initials: A
authors.lastname: El Haidani
authors.forename: Alain
authors.initials: A
authors.lastname: Vincent
authors.forename: François
authors.initials: F
authors.lastname: Payre
authors.forename: Saad Ibn
authors.initials: SI
authors.lastname: Souda
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D005075:Biological Evolution; D003001:Cloning, Molecular; D004268:DNA-Binding Proteins / Q000096:biosynthesis* / Q000235:genetics*; D004330:Drosophila / Q000196:embryology* / Q000235:genetics*; D029721:Drosophila Proteins; D018507:Gene Expression Regulation, Developmental; D007814:Larva / Q000254:growth & development; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D033621:Tephritidae / Q000196:embryology* / Q000235:genetics*; D014157:Transcription Factors / Q000096:biosynthesis* / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D004268:DNA-Binding Proteins; D029721:Drosophila Proteins; D014157:Transcription Factors; C089512:ovo protein, Drosophila