Determining the order of resistance genes against Stagonospora nodorum blotch, Fusarium head blight and stem rust on wheat chromosome arm 3BS

Table 4 QTL analysis performed for Stagonospora nodorum blotch resistance by interval mapping of F₂ progeny derived from a cross of Arina (QSng.sfr-3BS) by an F₂ progeny from a cross between Alsen and Ocoroni86 that was homozygous for the molecular markers linked to the Fhb1 (Alsen) and Sr2 (Ocoroni86) resistance genes

Marker	R² (%)^a	Additive effect^b	Dominance effect^b
Xsnp3BS-2	1.45	−0.39	−0.36
Xsnp3BS-3	0.99	−0.26	−0.26
g01130	1.62	−0.37	−0.39
Xumn10	1.85	−0.44	−0.39

^aThe R² (%) is the amount of phenotypic variation associated with the QTL
^bAdditive and dominance genetic effects for an allelic substitution were estimated using QTL Cartographer 2.5. Negative numbers indicate that the effect came from Arina

ISSN: 1756-0500