Abstract
Intraspecific genetic polymorphism of leaf rust caused by Puccinia triticina Erikss. was evaluated on the basis of the virulence, microsatellite loci (SSR), and single nucleotide polymorphism (SNP) of isolates collected in Southern Dagestan from species of Triticum L. sp. and Aegilops L. sp. Existence of pathogen population differentiation according to the results of virulence and microsatellite analysis indicates the existence of several genetically differing groups of isolates within the Derbent population. Derbent isolates and reference isolates of P. triticina from durum and common wheat that originated from different countries were characterized by a high degree of phylogenetic relationship by SNP markers. Ethiopian durum isolates in contrast were separated in a single clade.
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