IDENTIFICATION OF LEAF RUST RESISTANCE GENE (LR10) IN SOME IRAQI WHEAT CULTIVARS USING DNA MARKER

Abstract

ABSTRACT Leaf rust disease caused by the fungus Puccina recondita Rob.ex Desm. f.sp. Tritici infects both soft and hard wheat Triticum aestivum L., T. durum L., and causing significant economic losses. Genetic resistance is most successful method to reduce its impact. Molecular marker STS (Sequence Tagged Sites) were used for detection of resistance gene Lr10 in 13 local wheat cultivars by PCR technique, The results showed that the absence of Lr10 gene in cultivars: Al-Eiz and Entisar, and the presence of this gene in Al- Iraq, Abu Ghraib, Al-naaema, Faris, Eratom, Al- Mansour Belah, Tamuz 3, Tamuz 2, Cham 6, Ipa 99, Rabia.