EC573562 (EC573562; INGR15023), a Wheat (Triticum aestivum L.) for Rust Resistance with 3 Minor/APR Genes viz., Lr34/Sr57/YrWPm38; Lr46ISr?/Yr29l Pm39 and Lr67/Sr55/Yr46/Pm46

摘要

Wheat is one of the most important cereal crops for food security and rust diseases (Stem/black rust (caused by Puccinia graminis Pers. f. sp. tritici Eriks, and Henn.) brown or leaf rust (caused by Puccinia triticina Eriks.) and stripe/yellow rust (caused by Puccinia striiformis Westend.) continually pose a threat to wheat production at national and international level. Resistant cultivars are the cheapest, most reliable and environmentally safest way to control the rust diseases. Historically, manygenes weredeployed to provide resistance to rust diseases. However, most of the rust resistance genes, although initially effective were often short lived due to the ability of the pathogen to become virulent after single step mutations. In wheat breeding programmes, stem, leaf and stripe rust resistance could be achieved through several approaches. Major gene resistance (race specific) is achieved through conventional or backcross approach, or alternatively, breeders could select against race specificity (race non-