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Identification of Rust‐Conditioning Genes in Flax Cultivars 1
Author(s) -
Flor H. H.,
Comstock V. E.
Publication year - 1972
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1972.0011183x001200060025x
Subject(s) - cultivar , biology , rust (programming language) , linum , gene , botany , agronomy , horticulture , genetics , computer science , programming language
The selective pathogenicity of races of Melampsora lini (Ehrenb.) Lev. was utilized to identify rust‐conditioning genes in cultivars of flax ( Linum usitatissimum L.). New rust‐resistant cultivars developed for commercial production possessed the rust‐conditioning genes expected based on knowledge of their parents. A heretofore‐unknown gene, designated L 11 , was identified in ‘Linore,’ a cultivar of unknown parentage. This gene conditions resistance to all North American races of rust. Tests of several hundred cultivars of foreign origin revealed that most introductions are heterogenious for rust reaction.