One of the overall goals of the Purdue University-USDA/ARS Small Grains Research Program is to develop soft winter wheat (Triticum aestivum) and spring oat (Avena sativa) germplasms with resistance to BYDV, with emphasis on strains PAV and RPV. In oat, resistance of a number of BYDV resistance/ tolerance donor lines, mostly A. sativa, and at least one accession of A. sterilis have been combined, resulting in effective resistance. In wheat, we have developed a number of translocation lines in which parts of chromosome 7E of Thinopyrum intermedium, including resistance to BYDV, have replaced parts of chromosome 7D.
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