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Allelic Shifts and Quantitative Trait Loci in a Recurrent Selection Population of Oat

^a Potato Research Centre, Agriculture & Agri-Food Canada, Fredericton, NB E3B 4Z7 Canada
^b Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55108

View larger version (76K): [in a new window]   Fig. 1. (A) Restriction fragment length polymorphism banding patterns for DraI - digested DNA from the 12 original recurrent selection parents hybridized with the oat cDNA clone CDO 82. Arrows designated (a) represent alleles of an unmapped locus and arrows designated (b) represent alleles of a locus that maps to linkage group 6. (B) Restriction fragment length polymorphism banding patterns for DraI - digested DNA from the 21 Cycle 7 parents hybridized with the oat cDNA clone CDO 82. Arrows designated (a) represent alleles of an unmapped locus and arrows designated (b) represent alleles of a locus that maps to linkage group 6.

View larger version (31K): [in a new window]   Fig. 2. Linkage map location of primary, secondary, and tertiary QTL affecting grain yield (GY), heading date (HD), and plant height (PH) in a recurrent selection population of oat. Three linkage groups (O'Donoughue et al., 1995) that were analyzed in detail are shown. Primary QTL regions are defined as those identified using allelic shift, correlation, and single-factor ANOVA data. Secondary QTL were localized using correlation and ANOVA data, and tertiary QTL were identified based on ANOVA alone. An * denotes that the QTL region also was detected in a Kanota x Ogle recombinant inbred line population (Siripoonwiwat et al., 1996). m indicates locus was monomorphic in the recurrent selection population.