title: Monophyly/paraphyly/polyphyly and gene/species trees: an example from Drosophila.
authors.forename: J R
authors.initials: JR
authors.lastname: Powell
mesh_terms: D000818:Animals; D004330:Drosophila / Q000145:classification* / Q000235:genetics; D014644:Genetic Variation; D009693:Nucleic Acid Hybridization; D010802:Phylogeny