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Evidence of allelism between genes Pm8 and Pm17 and chromosomal location of powdery mildew and leaf rust resistance genes in the common wheat cultivar‘Amigo'
Author(s) -
Hsam S. L. K.,
Zeller F. J.
Publication year - 1997
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.1439-0523.1997.tb02164.x
Subject(s) - powdery mildew , biology , cultivar , common wheat , gene , chromosomal translocation , rust (programming language) , chromosome , genetics , hybrid , plant disease resistance , botany , computer science , programming language
TIBL‐1RS wheat‐rye translocation cultivars utilized in wheat programmes worldwide carry powdery mildew resistance gene Pm8 . Cultivar‘Amigo’possesses resistance gene Pm17 on its TIAL‐1RS translocated chromosome. To be able to use Pm17 efficiently in breeding programmes, this gene was transferred to a TIBL‐1RS translocation in line Helami‐105, and allelism between Pm8 and Pm17was studied. The progenies of the hybrids in the F 2 generation and F 3 families provided evidence that the two genes are allelic. Genetic studies using monosomic analyses confirmed that in cultivar‘Amigo', Pm17 and leaf rust resistance gene Lr24 are located on a translocated chromosome involving 1 A and 1B, respectively.