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Characterization and mapping of Lr65 in spelt wheat ‘Altgold Rotkorn’
Author(s) -
Mohler Volker,
Singh Davinder,
Singrün Charlotte,
Park Robert F.
Publication year - 2012
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.1439-0523.2011.01934.x
Subject(s) - biology , germplasm , rust (programming language) , genetics , gene , chromosome , gene mapping , common wheat , plant disease resistance , botany , stripe rust , computer science , programming language
With 1 figure and 4 tablesAbstract A leaf rust resistance gene (temporarily designated LrARK0; ) was identified in the Swiss spelt wheat ‘Altgold Rotkorn’ and mapped to chromosome 2A. The gene was located 2 cM distal to marker Xgwm614 (co‐segregating with markers Xbarc124 , Xbarc212 , XE34M48‐103 and XE38M53‐334 ) on chromosome 2AS. This map location is similar to that of LrAlt identified in the same germplasm in a previous study. Based on gene location, allelism tests and pathogen specificity, this leaf rust resistance gene wa s designated Lr65 . A single gene stock (AUS 91455) in a Triticum aestivum background was developed and registered for utilization and research purposes. The gene was widely effective against Australian and German isolates of Puccinia triticina .