Mating-type alleles in Illinois strains ofTetrahymena pyriformis, syngen 1

Abstract

Two new wild strains of T. pyriformis, syngen 1, have been examined for new matingtype, serotype and isoenzyme alleles. No new alleles at the mating type (mt) locus were found, but the two alleles previously found were extracted. No new alleles were found at the other five loci examined, but two alleles were obtained for each locus. These observations indicate that a limited polymorphism exists for these loci in natural populations of T. pyriformis, syngen 1.