Phytopathological and molecular genetic identification of leaf rust resistance genes in common wheat accessions with alien genetic material

Phytopathological and molecular genetic identification of leaf rust resistance genes in common... Leaf rust resistance genes were sought in 23 resistant common wheat accessions with alien genetic material of Aegilops speltoides, Ae. triuncialis, and Triticum kiharae from the Arsenal collection. The genes were identified by common phytopathological tests and PCR analysis with STS markers linked with the known Lr genes. None of the methods identified the resistance genes in two accessions. In the other accessions, the combination of the two methods broadened the spectrum of detectable genes and, in some cases, allowed double verification of the presence of a resistance gene. Most accessions proved to contain several leaf rust resistance genes, combining juvenile and adult plant ones. The accessions were found to contain gene combinations that ensured field resistance (Lr13 + Lr10 and Lr12 + Lr34) and immunity under the conditions of the Non-Chernozem region. Accessions with alien genetic material contained a unique combination of five or six resistance genes. Since the accessions were rich in leaf rust resistance genes, including effective ones, and carried rare combinations of these genes, they were proposed as donors to be universally employed in breeding for immunity in all regions of Russia. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Phytopathological and molecular genetic identification of leaf rust resistance genes in common wheat accessions with alien genetic material

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795407080078
Publisher site
See Article on Publisher Site

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