After decades of effective wheat stem rust control, due mainly to use of the Sr31 resistance gene in wheat, as of the early 2000s new virulent strains of the stem rust fungus, especially the Ug99 or the TTKSK races, are ...

Some 74 hexaploid wheats, synthesized by either crossing resistant Triticum turgidum var. durum [T. durum] with susceptible/intermediate T. tauschii [Aegilops squarrosa] or susceptible/intermediate T. turgidum with resistant ...

Races belonging to Ug99 lineage of stem rust fungus Puccinia graminis f. sp. tritici (Pgt) continue to pose a threat to wheat (Triticum aestivum L.) production in various African countries. Growing resistant varieties is ...