QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1

QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1

Fusarium head blight (FHB) resistant line Soru#1 was hybridized with the German cultivar Naxos to generate 131 recombinant inbred lines for QTL mapping. The population was phenotyped for FHB and associated traits in spray inoculated experiments in El Batán (Mexico), spawn inoculated experiments in Å...

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Main Authors: He, Xinyao, Lillemo, Morten, Shi, Jianrong, Wu, Jirong, Bjørnstad, Åsmund, Belova, Tatiana, Dreisigacker, Susanne, Duveiller, Etienne, Singh, Pawan
Format: Online
Language:English
Published: Public Library of Science 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4924825/
id pubmed-4924825
recordtype oai_dc
spelling pubmed-49248252016-07-18 QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1 He, Xinyao Lillemo, Morten Shi, Jianrong Wu, Jirong Bjørnstad, Åsmund Belova, Tatiana Dreisigacker, Susanne Duveiller, Etienne Singh, Pawan Research Article Fusarium head blight (FHB) resistant line Soru#1 was hybridized with the German cultivar Naxos to generate 131 recombinant inbred lines for QTL mapping. The population was phenotyped for FHB and associated traits in spray inoculated experiments in El Batán (Mexico), spawn inoculated experiments in Ås (Norway) and point inoculated experiments in Nanjing (China), with two field trials at each location. Genotyping was performed with the Illumina iSelect 90K SNP wheat chip, along with a few SSR and STS markers. A major QTL for FHB after spray and spawn inoculation was detected on 2DLc, explaining 15–22% of the phenotypic variation in different experiments. This QTL remained significant after correction for days to heading (DH) and plant height (PH), while another QTL for FHB detected at the Vrn-A1 locus on 5AL almost disappeared after correction for DH and PH. Minor QTL were detected on chromosomes 2AS, 2DL, 4AL, 4DS and 5DL. In point inoculated experiments, QTL on 2DS, 3AS, 4AL and 5AL were identified in single environments. The mechanism of resistance of Soru#1 to FHB was mainly of Type I for resistance to initial infection, conditioned by the major QTL on 2DLc and minor ones that often coincided with QTL for DH, PH and anther extrusion (AE). This indicates that phenological and morphological traits and flowering biology play important roles in resistance/escape of FHB. SNPs tightly linked to resistance QTL, particularly 2DLc, could be utilized in breeding programs to facilitate the transfer and selection of those QTL. Public Library of Science 2016-06-28 /pmc/articles/PMC4924825/ /pubmed/27351632 http://dx.doi.org/10.1371/journal.pone.0158052 Text en © 2016 He et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author He, Xinyao
Lillemo, Morten
Shi, Jianrong
Wu, Jirong
Bjørnstad, Åsmund
Belova, Tatiana
Dreisigacker, Susanne
Duveiller, Etienne
Singh, Pawan
spellingShingle He, Xinyao
Lillemo, Morten
Shi, Jianrong
Wu, Jirong
Bjørnstad, Åsmund
Belova, Tatiana
Dreisigacker, Susanne
Duveiller, Etienne
Singh, Pawan
QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1
author_facet He, Xinyao
Lillemo, Morten
Shi, Jianrong
Wu, Jirong
Bjørnstad, Åsmund
Belova, Tatiana
Dreisigacker, Susanne
Duveiller, Etienne
Singh, Pawan
author_sort He, Xinyao
title QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1
title_short QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1
title_full QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1
title_fullStr QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1
title_full_unstemmed QTL Characterization of Fusarium Head Blight Resistance in CIMMYT Bread Wheat Line Soru#1
title_sort qtl characterization of fusarium head blight resistance in cimmyt bread wheat line soru#1
description Fusarium head blight (FHB) resistant line Soru#1 was hybridized with the German cultivar Naxos to generate 131 recombinant inbred lines for QTL mapping. The population was phenotyped for FHB and associated traits in spray inoculated experiments in El Batán (Mexico), spawn inoculated experiments in Ås (Norway) and point inoculated experiments in Nanjing (China), with two field trials at each location. Genotyping was performed with the Illumina iSelect 90K SNP wheat chip, along with a few SSR and STS markers. A major QTL for FHB after spray and spawn inoculation was detected on 2DLc, explaining 15–22% of the phenotypic variation in different experiments. This QTL remained significant after correction for days to heading (DH) and plant height (PH), while another QTL for FHB detected at the Vrn-A1 locus on 5AL almost disappeared after correction for DH and PH. Minor QTL were detected on chromosomes 2AS, 2DL, 4AL, 4DS and 5DL. In point inoculated experiments, QTL on 2DS, 3AS, 4AL and 5AL were identified in single environments. The mechanism of resistance of Soru#1 to FHB was mainly of Type I for resistance to initial infection, conditioned by the major QTL on 2DLc and minor ones that often coincided with QTL for DH, PH and anther extrusion (AE). This indicates that phenological and morphological traits and flowering biology play important roles in resistance/escape of FHB. SNPs tightly linked to resistance QTL, particularly 2DLc, could be utilized in breeding programs to facilitate the transfer and selection of those QTL.
publisher Public Library of Science
publishDate 2016
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4924825/
_version_ 1613600961337491456

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