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Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel

Septoria tritici blotch (STB) has been ranked the third most important wheat disease in the world, threatening a large area of wheat production. Although major genes play an important role in the protection against Zymoseptoria tritici infection, the lifespan of their resistance unfortunately is ver...

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Autores principales: Yang, Nannan, Ovenden, Ben, Baxter, Brad, McDonald, Megan C., Solomon, Peter S., Milgate, Andrew
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9637935/
https://www.ncbi.nlm.nih.gov/pubmed/36352863
http://dx.doi.org/10.3389/fpls.2022.990915
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author Yang, Nannan
Ovenden, Ben
Baxter, Brad
McDonald, Megan C.
Solomon, Peter S.
Milgate, Andrew
author_facet Yang, Nannan
Ovenden, Ben
Baxter, Brad
McDonald, Megan C.
Solomon, Peter S.
Milgate, Andrew
author_sort Yang, Nannan
collection PubMed
description Septoria tritici blotch (STB) has been ranked the third most important wheat disease in the world, threatening a large area of wheat production. Although major genes play an important role in the protection against Zymoseptoria tritici infection, the lifespan of their resistance unfortunately is very short in modern wheat production systems. Combinations of quantitative resistance with minor effects, therefore, are believed to have prolonged and more durable resistance to Z. tritici. In this study, new quantitative trait loci (QTLs) were identified that are responsible for seedling-stage resistance and adult-plant stage resistance (APR). More importantly was the characterisation of a previously unidentified QTL that can provide resistance during different stages of plant growth or multi-stage resistance (MSR). At the seedling stage, we discovered a new isolate-specific QTL, QSt.wai.1A.1. At the adult-plant stage, the new QTL QStb.wai.6A.2 provided stable and consistent APR in multiple sites and years, while the QTL QStb.wai.7A.2 was highlighted to have MSR. The stacking of multiple favourable MSR alleles was found to improve resistance to Z. tritici by up to 40%.
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spelling pubmed-96379352022-11-08 Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel Yang, Nannan Ovenden, Ben Baxter, Brad McDonald, Megan C. Solomon, Peter S. Milgate, Andrew Front Plant Sci Plant Science Septoria tritici blotch (STB) has been ranked the third most important wheat disease in the world, threatening a large area of wheat production. Although major genes play an important role in the protection against Zymoseptoria tritici infection, the lifespan of their resistance unfortunately is very short in modern wheat production systems. Combinations of quantitative resistance with minor effects, therefore, are believed to have prolonged and more durable resistance to Z. tritici. In this study, new quantitative trait loci (QTLs) were identified that are responsible for seedling-stage resistance and adult-plant stage resistance (APR). More importantly was the characterisation of a previously unidentified QTL that can provide resistance during different stages of plant growth or multi-stage resistance (MSR). At the seedling stage, we discovered a new isolate-specific QTL, QSt.wai.1A.1. At the adult-plant stage, the new QTL QStb.wai.6A.2 provided stable and consistent APR in multiple sites and years, while the QTL QStb.wai.7A.2 was highlighted to have MSR. The stacking of multiple favourable MSR alleles was found to improve resistance to Z. tritici by up to 40%. Frontiers Media S.A. 2022-10-24 /pmc/articles/PMC9637935/ /pubmed/36352863 http://dx.doi.org/10.3389/fpls.2022.990915 Text en Copyright © 2022 Yang, Ovenden, Baxter, McDonald, Solomon and Milgate https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Yang, Nannan
Ovenden, Ben
Baxter, Brad
McDonald, Megan C.
Solomon, Peter S.
Milgate, Andrew
Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel
title Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel
title_full Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel
title_fullStr Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel
title_full_unstemmed Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel
title_short Multi-stage resistance to Zymoseptoria tritici revealed by GWAS in an Australian bread wheat diversity panel
title_sort multi-stage resistance to zymoseptoria tritici revealed by gwas in an australian bread wheat diversity panel
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9637935/
https://www.ncbi.nlm.nih.gov/pubmed/36352863
http://dx.doi.org/10.3389/fpls.2022.990915
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