title: Genetics of resistance to infection with Salmonella typhimurium in mice.
abstract: Eight strains of inbred mice fell into two sharply defined groups. Four strains (CBA, A/JAX, C3H/He, and DBA/2) were resistant (LD50, greater than 10(5)) to Salmonella typhimurium C5 given subcutaneously. The other four strains (Balb/c, C57BL, B10.D2 [new line], and DBA/1) were susceptible (LD50, less than 10). No intermediate resistance was seen. Examination of the F1, F2, and parental backcross generations bred from matings of CBA and Balb/c mice showed that resistance behaved as a simple Mendelian dominant. Resistance was not linked to H-2 genes, and no useful marker has yet been found. However, as previously demonstrated in the parent strains, resistance in the hybrids was related to the ability to produce a good delayed-type hypersensitivity reaction to an extract of S. typhimurium.
mesh_terms: D000818:Animals; D005260:Female; D005796:Genes; D005799:Genes, Dominant; D006649:Histocompatibility Antigens; D006824:Hybridization, Genetic; D006968:Hypersensitivity, Delayed; D007125:Immunogenetics; D007928:Lethal Dose 50; D008099:Liver / Q000382:microbiology; D008297:Male; D051379:Mice; D008805:Mice, Inbred A; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D008811:Mice, Inbred DBA; D008815:Mice, Inbred Strains / Q000276:immunology*; D012481:Salmonella Infections, Animal / Q000235:genetics / Q000276:immunology*; D012486:Salmonella typhimurium / Q000276:immunology; D013045:Species Specificity; D013154:Spleen / Q000382:microbiology
chemical_list: D006649:Histocompatibility Antigens