Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat

Seedling resistance to leaf rust available in the synthetic hexaploid wheat line Syn137 was characterised by means of cytogenetic and linkage mapping. Monosomic analysis located a single dominant gene for leaf rust resistance on chromosome 5D. Molecular mapping not only confirmed this location but a...

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Autores principales: Mohler, Volker, Schmolke, Michael, Zeller, Friedrich J., Hsam, Sai L. K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2020
Materias:
Plant Genetics • Original Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7148280/
https://www.ncbi.nlm.nih.gov/pubmed/31981185
http://dx.doi.org/10.1007/s13353-020-00541-z
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author Mohler, Volker
Schmolke, Michael
Zeller, Friedrich J.
Hsam, Sai L. K.
author_facet Mohler, Volker
Schmolke, Michael
Zeller, Friedrich J.
Hsam, Sai L. K.
author_sort Mohler, Volker
collection PubMed
description Seedling resistance to leaf rust available in the synthetic hexaploid wheat line Syn137 was characterised by means of cytogenetic and linkage mapping. Monosomic analysis located a single dominant gene for leaf rust resistance on chromosome 5D. Molecular mapping not only confirmed this location but also positioned the gene to the distal part of the long arm of chromosome 5D. A test of allelism showed that the gene, tentatively named LrSyn137, is independent but closely linked to Lr1. It appears that Syn137 is occasionally heterogeneous for Lr1 since the analysis of the Lr1-specific marker RGA567-5 in the genetic mapping population indicated the presence of Lr1. Syn137 represents another source of genetic variation that can be useful for the diversification of leaf rust resistance in wheat cultivars.
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spelling pubmed-71482802020-04-16 Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat Mohler, Volker Schmolke, Michael Zeller, Friedrich J. Hsam, Sai L. K. J Appl Genet Plant Genetics • Original Paper Seedling resistance to leaf rust available in the synthetic hexaploid wheat line Syn137 was characterised by means of cytogenetic and linkage mapping. Monosomic analysis located a single dominant gene for leaf rust resistance on chromosome 5D. Molecular mapping not only confirmed this location but also positioned the gene to the distal part of the long arm of chromosome 5D. A test of allelism showed that the gene, tentatively named LrSyn137, is independent but closely linked to Lr1. It appears that Syn137 is occasionally heterogeneous for Lr1 since the analysis of the Lr1-specific marker RGA567-5 in the genetic mapping population indicated the presence of Lr1. Syn137 represents another source of genetic variation that can be useful for the diversification of leaf rust resistance in wheat cultivars. Springer Berlin Heidelberg 2020-01-24 2020 /pmc/articles/PMC7148280/ /pubmed/31981185 http://dx.doi.org/10.1007/s13353-020-00541-z Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Plant Genetics • Original Paper
Mohler, Volker
Schmolke, Michael
Zeller, Friedrich J.
Hsam, Sai L. K.
Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat
title Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat
title_full Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat
title_fullStr Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat
title_full_unstemmed Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat
title_short Genetic analysis of Aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat
title_sort genetic analysis of aegilops tauschii-derived seedling resistance to leaf rust in synthetic hexaploid wheat
topic Plant Genetics • Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7148280/
https://www.ncbi.nlm.nih.gov/pubmed/31981185
http://dx.doi.org/10.1007/s13353-020-00541-z
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