title: Ribosomal RNA gene site polymorphism in Bufo terrestris.
abstract: Individual specimens of Bufo terrestris were discovered that possessed ribosomal gene locations in addition to those normally found. Every specimen from an island population that was examined had extra sites, whereas fewer individuals from coastal mainland populations and none from inland populations had them. Although the extra ribosomal gene locations probably did not arise through gross structural chromosome rearrangements, their origin remains unclear.
authors.affiliation: Department of Biology, East Carolina University, Greenville, NC.
authors.forename: D L
authors.initials: DL
authors.lastname: Foote
authors.forename: J E
authors.initials: JE
authors.lastname: Wiley
authors.forename: M L
authors.initials: ML
authors.lastname: Little
authors.forename: J
authors.initials: J
authors.lastname: Meyne
mesh_terms: D000818:Animals; D002025:Bufonidae / Q000235:genetics*; D002871:Chromosome Banding; D004275:DNA, Ribosomal / Q000235:genetics*; D005810:Multigene Family / Q000235:genetics; D009657:North Carolina; D009693:Nucleic Acid Hybridization; D011110:Polymorphism, Genetic; D012337:RNA, Ribosomal, 18S / Q000235:genetics*; D012339:RNA, Ribosomal, 28S / Q000235:genetics*
chemical_list: D004275:DNA, Ribosomal; D012337:RNA, Ribosomal, 18S; D012339:RNA, Ribosomal, 28S