Unrooted dendrogram of phylogenetic relatioships between rust species and formae speciales; NJ analysis of ITS rDNA sequences

(Zambino, P.J. and Szabo, L.J. 1993. Phylogenetic relationships of selected cereal and grass rusts based on rDNA sequence analysis. Mycologia 85:401-414; with permission of The New York Botanical Garden Press)
NOTE: Puccinia recondita f sp. tritici has been renamed Puccinia triticina, the rust fungus causing leaf rust (brown rust) of wheat, and which is the subject of studies in our laboratory.