K. Richardson

TL;DR: Selective genotyping and/or selective phenotyping approaches could be effective strategies for reducing the costs associated with conducting QTL analysis in large populations using the barley/barley stripe rust pathosystem to evaluate the effect of population size on the estimation of QTL parameters.

TL;DR: The results indicate that combining qualitative and quantitative resistance in the same genotype is feasible, however, the durability of such resistance pyramids will require challenge from virulent isolates, which currently are not reported in North America.

TL;DR: Pyramiding multiple QTL alleles led to higher levels of resistance in terms of all components of QR except latent period, which led to longer latent periods than the susceptible parent (Baronesse).

TL;DR: The results validate QTL effect estimates, showing that a small number of QTL explained 94% of the genetic variation in trait expression in a new genetic background, and original QTL estimates were quantitatively biased, but that did not preclude the achievement of selection responses.