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Inheritance of the Powdery Mildew Resistance Mlk in Wheat
Author(s) -
Heun M.,
Fischbeck G.
Publication year - 1989
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1989.tb00383.x
Subject(s) - powdery mildew , biology , inoculation , cultivar , inheritance (genetic algorithm) , botany , mildew , gene , resistance (ecology) , genetics , horticulture , agronomy
The inheritance of the Mlk powdery mildew resistance originating from ‘Heine 2174.50’ was analyzed by crossing the Mlk resistant cultivar ‘Ralle’× cv. ‘Amor’ (highly susceptible) and vice versa and by observing the reactions of F 1 ‐ and F 2 ‐plants after inoculation with two different Mlk avirulent powdery mildew isolates. In all cases, a 3 (resistant): I (susceptible) segregation was found in F 2 . The reactions of the F 2 plants against the two powdery mildew isolates were identical in each case. Therefore, it is supposed that one dominant resistant gene is responsible for the resistant reactions against these two isolates. These results support the earlier assumption of H eun and F ischbeck (1987b) that the whole Mlk resistance pattern is controlled by a single gene.