MULTIPLE ALLELES AT THE INCOMPATIBILITY LOCUS IN THE MYXOMYCETE DIDYMIUM IRIDIS

Abstract

C ollins , O'N eil R ay . (Queens Coll., New York City.) Multiple alleles at the incompatibility locus in the Myxomycete Didymium iridis. Amer. Jour. Bot. 50(5): 477–480. 1963.—Working with 2 isolates of Didymium iridis , from Honduras and Panama, respectively, it was shown that each isolate possesses a pair of incompatibility factors. On the basis of results from inter‐isolate crosses, one pair was designated A 1 A 2 and the other A 3 A 4 to indicate that these factors actually constitute a series of multiple alleles at a single locus.