Description:
HA-R12 is a F3-derived F4 maintainer selection from the cross of a resistant plant (BC4F2, 12-55) selected from the cross CONFSCLB1*5/MC29 (AUS) and HA-R6. CONFSCLB1 and HA-R6 are the confection maintainer lines released by USDA and the North Dakota Agricultural Experiment Station in 2006 and 2001, respectively. MC29 (AUS) is an Australian selection of the line MC29. CONFSCLB1 is susceptible to rust, whereas both MC29 (AUS) and HA-R6 are resistant to rust, but have different resistance genes.