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Distorted Segregation for Mildew Resistance in Doubled Haploid Lines of Spring Barley
Author(s) -
Kintzios S.,
Islam R. M.,
Fischbeck G.
Publication year - 1994
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.1439-0523.1994.tb00679.x
Subject(s) - biology , mildew , doubled haploidy , hordeum vulgare , ploidy , powdery mildew , gene , locus (genetics) , poaceae , botany , chromosome , stamen , resistance (ecology) , dominance (genetics) , genetics , agronomy , pollen
The mildew reactions of the second generation of doubled haploid (DH) plants, derived from anther culture of crosses among three spring barley lines carrying different Mla mildew resistance alleles and the cv. ‘Pallas’, were analyzed by using a set of three European and one Israeli mildew isolate. The results indicated, (1) a significant level of distortion segregation in favour of resistant DH genotypes, which was possibly due to linkage of mildew resistance genes on chromosome 5 with genes for plant regeneration and (2) various degrees of dominance for the different resistance genes studied as well as the possible action of modifier genes.