Molecular markers for leaf rust resistance gene Lr42 in wheat

dc.citationLiu, Zhengli, Robert L. Bowden, and Guihua Bai. “Molecular Markers for Leaf Rust Resistance Gene Lr42 in Wheat.” Crop Science 53, no. 4 (2013): 1566–70. https://doi.org/10.2135/cropsci2012.09.0532.
dc.citation.doi10.2135/cropsci2012.09.0532en_US
dc.citation.epage1570en_US
dc.citation.issn0011-183X
dc.citation.issue4en_US
dc.citation.jtitleCrop Scienceen_US
dc.citation.spage1566en_US
dc.citation.volume53en_US
dc.contributor.authorLiu, Zhengli
dc.contributor.authorBowden, Robert L.
dc.contributor.authorBai, Guihua
dc.contributor.authoreidrbowdenen_US
dc.contributor.authoreidgbaien_US
dc.date.accessioned2013-09-05T20:43:27Z
dc.date.available2013-09-05T20:43:27Z
dc.date.issued2013-09-05
dc.date.published2013en_US
dc.descriptionCitation: Liu, Zhengli, Robert L. Bowden, and Guihua Bai. “Molecular Markers for Leaf Rust Resistance Gene Lr42 in Wheat.” Crop Science 53, no. 4 (2013): 1566–70. https://doi.org/10.2135/cropsci2012.09.0532.
dc.description.abstractWheat leaf rust, caused by Puccinia triticina Eriks., is an important wheat foliar disease worldwide. Growing cultivars incorporating genetic resistance is one of the most effective approaches for disease control. Leaf rust resistance gene Lr42 was identified from a wheat relative, Aegilops tauschii Coss, and has been transferred into hard winter wheat. A previous study identified two markers closely linked to the gene on the short arm of chromosome 1D (1DS) using a near isogenic population, but flanking markers for Lr42 were not found. In this study, a new mapping population was developed from a cross between ‘KS93U50’ (a Lr42 carrier) and a susceptible parent, ‘Morocco’. An F[subscript 2] population was analyzed with all simple sequence repeat (SSR) markers available from chromosome 1D and F[subscript 2] plants and F[subscript 3] families were evaluated for seedling resistance to isolate PNMR, a rust isolate avirulent to Lr42. The F[subscript 2] and F[subscript 3] rust data showed that Lr42 was recessive. Seven markers formed the linkage group on 1DS. The Lr42 region was flanked by two simple sequence repeat (SSR) markers; Xwmc432 and Xgdm33 at 17 cM apart. The results confirmed that Lr42 is positioned on the distal end of chromosome 1DS. The flanking markers for Lr42 should be useful for map-based cloning and marker-assisted pyramiding of Lr42 with other leaf rust resistance genes.en_US
dc.description.versionArticle (author version)
dc.identifier.urihttp://hdl.handle.net/2097/16408
dc.language.isoen_USen_US
dc.relation.urihttps://doi.org/10.2135/cropsci2012.09.0532en_US
dc.rightsCopyright © 2013 by the Crop Science Society of America, Inc. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.urihttps://rightsstatements.org/page/InC/1.0/?language=en
dc.subjectWheat leaf rusten_US
dc.subjectPuccinia triticina Eriks.en_US
dc.subjectLr42en_US
dc.subjectLeaf rust resistance genesen_US
dc.titleMolecular markers for leaf rust resistance gene Lr42 in wheaten_US
dc.typeTexten_US

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