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The inheritance of the traits of resistance to fungal diseases by distant hybrids of wheat with amphiploids

Motsnyy I.I., Lyfenko S.F., Koval T.N.

 




The inheritance of resistance to powdery mildew, leaf rust and septorios of hybrids from crosses of wheat--rye and two wheat--Elymus amphiploids with durum and bread wheat was studied. Spontaneous hybridization was revealed to be a determining factor of the new available trait formation in the wide crosses. Control of the leaf rust and heary leaf traits by the same alien chromosome of Elytricum fertile is confirmed. While in the wheat--Aegilops amphiploid H74/90-258 these traits are not linked and controlled by one and two genes, respectively. The alien resistance is easier introgessed into wheat genome in the cross of 8x-amphiploid with durum wheat, than with bread wheat. Constant homozygous strains with group resistance to the studied diseases have been revealed.

Tsitologiya i Genetika 2000, vol. 34, no. 2, pp. 46-56



Motsnyy I.I., Lyfenko S.F., Koval T.N. The inheritance of the traits of resistance to fungal diseases by distant hybrids of wheat with amphiploids, Tsitol Genet., 2000, vol. 34, no. 2, pp. 46-56.




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