Leaf rust resistance genes in Aegilops genus: occurrence and efficiency

Abstract Leaf rust is a common and costly wheat disease. The introduction of resistance genes derived from wild relatives one way to improve disease control. However, due the rapid development virulence in casual pathogen Puccinia triticina , long-term effectiveness some leaf ( Lr ) questionable. To assess this, we examined 130 accessions 13 relative species Aegilops genus. presence 9 was determined by PCR using primers complementary gene markers. studied individuals were exposed artificial inoculation with P. under greenhouse field conditions, respectively. Based on infection rate, degree for each individual estimated. relationship between manifested assessed canonical correlation analysis (CCA) variance (ANOVA). Our results indicate effective participation Lr9 seedling while Lr58 involved adult plant resistance.