Antibody diversity in amphibians: inheritance of isoelectric focusing antibody patterns in isogenic frogs

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Abstract
Anti‐sheep red cell, anti‐dinitrophenyl, anti‐phosphorylcholine antibody responses have been followed in isogenic frogs of the genus Xenopus. Isoelectric focusing antibody patterns show a high degree of overlap for all antigens studied, and a heterogeneity that is lower than in mammals for the same antigens. Inheritance of antibody isoelectric focusing spectrotypes was demonstrated for sheep red cells and dinitrophenyl in two clones of isogenic animals. Outbred frogs show a higher frequency of spectrotype sharing than outbred mammals. It is therefore suggested that antibody diversity is lower in frogs than in mammals.