Patent ID: 7652204

Claim:
A method for making a Fusarium resistant tetraploid (AABB) durum wheat comprising: crossing a hexaploid Fusarium resistant wheat with a tetraploid (AABB) durum wheat to produce an F 1 progeny; backcrossing the F 1 progeny with a tetraploid (AABB) durum wheat to produce a backcrossed F 1 (BC 1 F 1 ) progeny; repeatedly selfing the backcrossed progeny for at least five generations without additional backcrossing to produce a backcrossed F n progeny (BC 1 F n ), wherein n>5 and the genetic variability within the F n generation is 3.125% or less; and selecting a Fusarium resistant tetraploid (AABB) durum wheat from the F n generation.