Detection of molecular markers linked to Ry genes in potato germplasm for marker-assisted selection for extreme resistance to PVY in AAFC’s potato breeding program
2016
Nie, Xianzhou | Lalany, Fayruza | Dickison, Virginia | Wilson, Donna | Singh, Mathuresh | Koeyer, David De | Murphy, Agnes
Molecular markers reported to be linked to extreme resistance (ER) against Potato virus Y (PVY) were evaluated in potato germplasm. YES3-3A and YES3-3B, markers linked to Ryₛₜₒ, were detected in ‘Barbara’ and its three descendants that exhibit ER to PVY; RYSC3, a marker linked to Ryₐdg, was detected in breeding clones NY121 and NY123. Assessment of RYSC3 as a marker for selection for Ryₐdg-mediated ER validated its efficacy in identification of selections with ER to PVY.
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