title: Intragenic suppression at the b2 locus in Ascobolus immersus. I. Identification of three distinct groups of suppression.
abstract: A reversion study of EMS- or ICR170-induced ascospore color mutants in Ascobolus immersus is reported. Twenty-three new intragenic suppressors were isolated within the b2 locus. These are localized within three distinct groups on a genetic fine-structure map containing 21 identifiable sites. The pattern of reversion is discussed according to the known specificity of EMS and ICR170 in Ascobolus immersus.
mesh_terms: D001203:Ascomycota / Q000235:genetics*; D005020:Ethyl Methanesulfonate / Q000494:pharmacology; D008040:Genetic Linkage; D009588:Nitrogen Mustard Compounds / Q000494:pharmacology; D010858:Pigmentation; D013489:Suppression, Genetic / Q000187:drug effects
chemical_list: D009588:Nitrogen Mustard Compounds; D005020:Ethyl Methanesulfonate