TRANSLOCATIONS INVOLVING TRITICUM CHROMOSOMES AND AGROPYRON CHROMOSOMES CARRYING RUST RESISTANCE

Two programs have been carried out in which irradiation was used to translocate a gene for rust resistance from a Agropyron to a wheat chromosome. In one case, 1 out of 7 translocations and in another 1 out of 4 were transmitted normally through the gametes and proved to involve a wheat chromosome homoeologous to the Agropyron chromosome. It is suggested that the translocations are not randomly distributed among the wheat chromosomes and that...