Cargando…
A mutagenesis-derived broad-spectrum disease resistance locus in wheat
Wheat leaf rust, stem rust, stripe rust, and powdery mildew caused by the fungal pathogens Puccinia triticina, P. graminis f. sp. tritici, P. striiformis f. sp. tritici, and Blumeria graminis f. sp. tritici, respectively, are destructive diseases of wheat worldwide. Breeding durable disease resistan...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer-Verlag
2012
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374107/ https://www.ncbi.nlm.nih.gov/pubmed/22446929 http://dx.doi.org/10.1007/s00122-012-1841-7 |
_version_ | 1782235596813500416 |
---|---|
author | Campbell, Jackie Zhang, Hongtao Giroux, Michael J. Feiz, Leila Jin, Yue Wang, Meinan Chen, Xianming Huang, Li |
author_facet | Campbell, Jackie Zhang, Hongtao Giroux, Michael J. Feiz, Leila Jin, Yue Wang, Meinan Chen, Xianming Huang, Li |
author_sort | Campbell, Jackie |
collection | PubMed |
description | Wheat leaf rust, stem rust, stripe rust, and powdery mildew caused by the fungal pathogens Puccinia triticina, P. graminis f. sp. tritici, P. striiformis f. sp. tritici, and Blumeria graminis f. sp. tritici, respectively, are destructive diseases of wheat worldwide. Breeding durable disease resistance cultivars rely largely on continually introgressing new resistance genes, especially the genes with different defense mechanisms, into adapted varieties. Here, we describe a new resistance gene obtained by mutagenesis. The mutant, MNR220 (mutagenesis-derived new resistance), enhances resistance to three rusts and powdery mildew, with the characteristics of delayed disease development at the seedling stage and completed resistance at the adult plant stage. Genetic analysis demonstrated that the resistance in MNR220 is conferred by a single semidominant gene mapped on the short arm of chromosome 2B. Gene expression profiling of several pathogenesis-related genes indicated that MNR220 has an elevated and rapid pathogen-induced response. In addition to its potential use in breeding for resistance to multiple diseases, high-resolution mapping and cloning of the disease resistance locus in MNR220 may lead to a better understanding of the regulation of defense responses in wheat. |
format | Online Article Text |
id | pubmed-3374107 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Springer-Verlag |
record_format | MEDLINE/PubMed |
spelling | pubmed-33741072012-06-14 A mutagenesis-derived broad-spectrum disease resistance locus in wheat Campbell, Jackie Zhang, Hongtao Giroux, Michael J. Feiz, Leila Jin, Yue Wang, Meinan Chen, Xianming Huang, Li Theor Appl Genet Original Paper Wheat leaf rust, stem rust, stripe rust, and powdery mildew caused by the fungal pathogens Puccinia triticina, P. graminis f. sp. tritici, P. striiformis f. sp. tritici, and Blumeria graminis f. sp. tritici, respectively, are destructive diseases of wheat worldwide. Breeding durable disease resistance cultivars rely largely on continually introgressing new resistance genes, especially the genes with different defense mechanisms, into adapted varieties. Here, we describe a new resistance gene obtained by mutagenesis. The mutant, MNR220 (mutagenesis-derived new resistance), enhances resistance to three rusts and powdery mildew, with the characteristics of delayed disease development at the seedling stage and completed resistance at the adult plant stage. Genetic analysis demonstrated that the resistance in MNR220 is conferred by a single semidominant gene mapped on the short arm of chromosome 2B. Gene expression profiling of several pathogenesis-related genes indicated that MNR220 has an elevated and rapid pathogen-induced response. In addition to its potential use in breeding for resistance to multiple diseases, high-resolution mapping and cloning of the disease resistance locus in MNR220 may lead to a better understanding of the regulation of defense responses in wheat. Springer-Verlag 2012-03-25 2012 /pmc/articles/PMC3374107/ /pubmed/22446929 http://dx.doi.org/10.1007/s00122-012-1841-7 Text en © The Author(s) 2012 https://creativecommons.org/licenses/by/4.0/ This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
spellingShingle | Original Paper Campbell, Jackie Zhang, Hongtao Giroux, Michael J. Feiz, Leila Jin, Yue Wang, Meinan Chen, Xianming Huang, Li A mutagenesis-derived broad-spectrum disease resistance locus in wheat |
title | A mutagenesis-derived broad-spectrum disease resistance locus in wheat |
title_full | A mutagenesis-derived broad-spectrum disease resistance locus in wheat |
title_fullStr | A mutagenesis-derived broad-spectrum disease resistance locus in wheat |
title_full_unstemmed | A mutagenesis-derived broad-spectrum disease resistance locus in wheat |
title_short | A mutagenesis-derived broad-spectrum disease resistance locus in wheat |
title_sort | mutagenesis-derived broad-spectrum disease resistance locus in wheat |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374107/ https://www.ncbi.nlm.nih.gov/pubmed/22446929 http://dx.doi.org/10.1007/s00122-012-1841-7 |
work_keys_str_mv | AT campbelljackie amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT zhanghongtao amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT girouxmichaelj amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT feizleila amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT jinyue amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT wangmeinan amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT chenxianming amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT huangli amutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT campbelljackie mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT zhanghongtao mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT girouxmichaelj mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT feizleila mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT jinyue mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT wangmeinan mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT chenxianming mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat AT huangli mutagenesisderivedbroadspectrumdiseaseresistancelocusinwheat |