title: Effect of the O chromosome of Drosophila subobscura on abdominal bristle number.
abstract: The role of the O chromosome of D. subobscura on the control of abdominal bristle number was analyzed. The study was performed using four strains derived from four lines selected for high (H1 and H2) and low (L1 and L2) bristle number. In all the lines, the factors for abdominal bristle number carried on the O chromosome showed additive effects and diminished the number of abdominal bristles. The negative effect of the O chromosomes from low selection lines was found to be stronger than the negative effect of the O chromosomes from high selection lines.
authors.affiliation: Universidad Jaume I, Dept. Ciencias Experimentales, Castellón, Spain.
authors.forename: P
authors.initials: P
authors.lastname: García-Agustín
authors.forename: M J
authors.initials: MJ
authors.lastname: Martínez-Sebastián
authors.forename: J L
authors.initials: JL
authors.lastname: Ménsua
mesh_terms: D000005:Abdomen; D000818:Animals; D002875:Chromosomes / Q000502:physiology*; D004330:Drosophila / Q000235:genetics* / Q000648:ultrastructure; D005260:Female; D006579:Heterozygote; D006720:Homozygote; D008297:Male