title: Wing development genes of the pea aphid and differential gene expression between winged and unwinged morphs.
abstract: Little is known about when, how or even if the wing development gene network elucidated in Drosophila is deployed in direct-developing insects. Here we identify the wing development genes (as determined in Drosophila) of the pea aphid (Acyrthosiphon pisum), which produces winged or unwinged adults in response to environmental cues. We find that the principal wing development genes studied in Drosophila are present in the aphid genome and that apterous and decapentaplegic exhibit duplications. We followed expression levels of 11 of these developmental genes at embryogenesis and across the nymphal instars. Six showed significant stage-specific expression level effects and apterous1 exhibited significantly different expression levels between winged and unwinged morphs, suggesting this gene acts proximately to realize polyphenic development.
authors.affiliation: University of Southern California, Los Angeles, USA. jbrisson2@unl.edu <jbrisson2@unl.edu>
authors.forename: J A
authors.initials: JA
authors.lastname: Brisson
authors.forename: A
authors.initials: A
authors.lastname: Ishikawa
authors.forename: T
authors.initials: T
authors.lastname: Miura
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001042:Aphids / Q000196:embryology / Q000235:genetics* / Q000254:growth & development*; D001483:Base Sequence; D019521:Body Patterning / Q000235:genetics; D017931:DNA Primers / Q000235:genetics; D004331:Drosophila melanogaster / Q000235:genetics / Q000254:growth & development; D020440:Gene Duplication; D018507:Gene Expression Regulation, Developmental; D053263:Gene Regulatory Networks; D017344:Genes, Insect; D049750:Genome, Insect; D019476:Insect Proteins / Q000235:genetics; D007313:Insecta / Q000145:classification / Q000196:embryology / Q000235:genetics / Q000254:growth & development; D008969:Molecular Sequence Data; D018532:Pisum sativum / Q000469:parasitology; D010802:Phylogeny; D017386:Sequence Homology, Amino Acid; D014921:Wings, Animal / Q000196:embryology / Q000254:growth & development*
chemical_list: D017931:DNA Primers; D019476:Insect Proteins