title: Proximal-distal leg development in Drosophila requires the apterous gene and the Lim1 homologue dlim1.
abstract: Proximal-distal leg development in Drosophila involves a battery of genes expressed and required in specific proximal-distal (PD) domains of the appendage. Here we report the characterisation of a new gene of this type, dlim1, a member of the Lhx family of genes whose proteins contain two Lim domains and a homeodomain. We show that the Lhx gene apterous (ap) is also required for PD leg development, and we study the functional interactions between ap, dlim1 and other PD genes during leg development. Our results show that a regulatory network formed by ap and dlim1 plus the homeobox genes aristaless and Bar specifies distal leg cell fates in Drosophila.
authors.affiliation: School of Biological Sciences, Royal Holloway College, University of London, London, UK.
authors.forename: J I
authors.initials: JI
authors.lastname: Pueyo
authors.forename: M I
authors.initials: MI
authors.lastname: Galindo
authors.forename: S A
authors.initials: SA
authors.lastname: Bishop
authors.forename: J P
authors.initials: JP
authors.lastname: Couso
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D019521:Body Patterning / Q000235:genetics; D017931:DNA Primers / Q000235:genetics; D018076:DNA, Complementary / Q000235:genetics; D004330:Drosophila / Q000235:genetics* / Q000254:growth & development*; D029721:Drosophila Proteins; D004742:Enhancer Elements, Genetic; D005121:Extremities / Q000254:growth & development; D005260:Female; D018507:Gene Expression Regulation, Developmental; D005801:Genes, Homeobox; D017344:Genes, Insect; D018398:Homeodomain Proteins / Q000235:genetics*; D017403:In Situ Hybridization; D060850:LIM-Homeodomain Proteins; D008297:Male; D008969:Molecular Sequence Data; D009154:Mutation; D017386:Sequence Homology, Amino Acid; D014157:Transcription Factors / Q000235:genetics*; D014714:Vertebrates; D060589:Zyxin
chemical_list: D017931:DNA Primers; D018076:DNA, Complementary; D029721:Drosophila Proteins; D018398:Homeodomain Proteins; D060850:LIM-Homeodomain Proteins; D014157:Transcription Factors; C499520:Zyx protein, Drosophila; D060589:Zyxin; C074459:ap protein, Drosophila