Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population

Stripe rust caused by the biotrophic fungus Puccinia striiformis Westend. is one of the most important diseases of wheat worldwide, causing high yield and quality losses. Growing resistant cultivars is the most efficient way to control stripe rust, both economically and ecologically. Known resistanc...

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Main Authors: Sandra Rollar, Manuel Geyer, Lorenz Hartl, Volker Mohler, Frank Ordon, Albrecht Serfling
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-12-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2021.684671/full
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author Sandra Rollar
Manuel Geyer
Lorenz Hartl
Volker Mohler
Frank Ordon
Albrecht Serfling
author_facet Sandra Rollar
Manuel Geyer
Lorenz Hartl
Volker Mohler
Frank Ordon
Albrecht Serfling
author_sort Sandra Rollar
collection DOAJ
description Stripe rust caused by the biotrophic fungus Puccinia striiformis Westend. is one of the most important diseases of wheat worldwide, causing high yield and quality losses. Growing resistant cultivars is the most efficient way to control stripe rust, both economically and ecologically. Known resistance genes are already present in numerous cultivars worldwide. However, their effectiveness is limited to certain races within a rust population and the emergence of stripe rust races being virulent against common resistance genes forces the demand for new sources of resistance. Multiparent advanced generation intercross (MAGIC) populations have proven to be a powerful tool to carry out genetic studies on economically important traits. In this study, interval mapping was performed to map quantitative trait loci (QTL) for stripe rust resistance in the Bavarian MAGIC wheat population, comprising 394 F6 : 8 recombinant inbred lines (RILs). Phenotypic evaluation of the RILs was carried out for adult plant resistance in field trials at three locations across three years and for seedling resistance in a growth chamber. In total, 21 QTL for stripe rust resistance corresponding to 13 distinct chromosomal regions were detected, of which two may represent putatively new QTL located on wheat chromosomes 3D and 7D.
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spelling doaj.art-c3363787776745f18ab642f62fa9b05e2022-12-21T20:21:32ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-12-011210.3389/fpls.2021.684671684671Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat PopulationSandra Rollar0Manuel Geyer1Lorenz Hartl2Volker Mohler3Frank Ordon4Albrecht Serfling5Julius Kühn Institute (JKI) – Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Quedlinburg, GermanyBavarian State Research Center for Agriculture, Institute for Crop Science and Plant Breeding, Freising, GermanyBavarian State Research Center for Agriculture, Institute for Crop Science and Plant Breeding, Freising, GermanyBavarian State Research Center for Agriculture, Institute for Crop Science and Plant Breeding, Freising, GermanyJulius Kühn Institute (JKI) – Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Quedlinburg, GermanyJulius Kühn Institute (JKI) – Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Quedlinburg, GermanyStripe rust caused by the biotrophic fungus Puccinia striiformis Westend. is one of the most important diseases of wheat worldwide, causing high yield and quality losses. Growing resistant cultivars is the most efficient way to control stripe rust, both economically and ecologically. Known resistance genes are already present in numerous cultivars worldwide. However, their effectiveness is limited to certain races within a rust population and the emergence of stripe rust races being virulent against common resistance genes forces the demand for new sources of resistance. Multiparent advanced generation intercross (MAGIC) populations have proven to be a powerful tool to carry out genetic studies on economically important traits. In this study, interval mapping was performed to map quantitative trait loci (QTL) for stripe rust resistance in the Bavarian MAGIC wheat population, comprising 394 F6 : 8 recombinant inbred lines (RILs). Phenotypic evaluation of the RILs was carried out for adult plant resistance in field trials at three locations across three years and for seedling resistance in a growth chamber. In total, 21 QTL for stripe rust resistance corresponding to 13 distinct chromosomal regions were detected, of which two may represent putatively new QTL located on wheat chromosomes 3D and 7D.https://www.frontiersin.org/articles/10.3389/fpls.2021.684671/fullstripe rustYr genesMAGIC populationsimple interval mappingQTL
spellingShingle Sandra Rollar
Manuel Geyer
Lorenz Hartl
Volker Mohler
Frank Ordon
Albrecht Serfling
Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population
Frontiers in Plant Science
stripe rust
Yr genes
MAGIC population
simple interval mapping
QTL
title Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population
title_full Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population
title_fullStr Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population
title_full_unstemmed Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population
title_short Quantitative Trait Loci Mapping of Adult Plant and Seedling Resistance to Stripe Rust (Puccinia striiformis Westend.) in a Multiparent Advanced Generation Intercross Wheat Population
title_sort quantitative trait loci mapping of adult plant and seedling resistance to stripe rust puccinia striiformis westend in a multiparent advanced generation intercross wheat population
topic stripe rust
Yr genes
MAGIC population
simple interval mapping
QTL
url https://www.frontiersin.org/articles/10.3389/fpls.2021.684671/full
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