Contributed by Gina Brown-Guedira and Suhkwinder Singh
Host plant resistance is an economical and environmentally sound method of control of leaf rust, caused by the fungus Puccinia triticina Eriks, which is one of the most serious diseases of wheat (Triticum aestivum L.) worldwide. Wild relatives of wheat, including the tetraploid Triticum timopheevii ssp. armeniacum (hereafter referred to as T. armeniacum), represent an important source of genes for resistance to leaf rust (3).