Description:
We generated F4 lines with the linked Yr78 and Yr36 resistance gene in coupling in hexaploid wheat by crossing the Yr78 donor PI 519805 with UC-Central Red-Yr5-Yr36 (Yr36 donor). PI 519805 was developed in Uruguay, from the cross ND457*3/T.durum//Estanzuela Dakuro. The breeding line UC-Central RedYr5-Yr36 was developed at UC Davis through backcross introgression of Yr5 and Yr36 into the Hard Red Spring cultivar UC-Central Red (PVP 2-19-00011) which already carried Yr15.