Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat

Autores
Gerard, Guillermo Sebastián; Börner, Andreas; Lohwasser, Ulrike; Simón, María Rosa
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Septoria tritici blotch (STB), caused by the ascomycete fungus Zymoseptoria tritici (also known as Mycosphaerella graminicola), is one of the most devastating foliar wheat diseases worldwide. Host resistance is the most effective strategy for management of the disease. A factor that complicates the determination of resistance is its reported interaction with heading date (Hd) and plant height (Ph). In this study, we report findings from a genome-wide association study of resistance to STB in a world-wide collection of 96 wheat accessions. The collection was evaluated under conditions of artificial infection for seedling and adult plant STB resistance, Hd and Ph in field trials. Marker-trait associations (MTAs) were detected using a mixed linear model. STB disease severities showed significant phenotypic variation. In total, 73 MTAs involving STB resistance were detected. The chromosomal locations of some of them were similar to known Stb genes or quantitative trait loci; whereas others were detected in new genomic regions. The field experiment showed evidence of genetic association between STB resistance and Hd, but only for a few genotypes. This was corroborated at the molecular level, where a total of eight genomic regions associated with STB resistance were located in similar positions to MTAs for Hd. New genomic regions associated with STB resistance found here could be useful in wheat breeding aimed at controlling STB after validation in relevant genetic backgrounds
Facultad de Ciencias Agrarias y Forestales
Comisión de Investigaciones Científicas de la provincia de Buenos Aires
Materia
Ciencias Agrarias
DArT
Triticum aestivum
Zymoseptoria tritici
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/134978
Acceder
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network_name_str SEDICI (UNLP)
spelling Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheatGerard, Guillermo SebastiánBörner, AndreasLohwasser, UlrikeSimón, María RosaCiencias AgrariasDArTTriticum aestivumZymoseptoria triticiSeptoria tritici blotch (STB), caused by the ascomycete fungus Zymoseptoria tritici (also known as Mycosphaerella graminicola), is one of the most devastating foliar wheat diseases worldwide. Host resistance is the most effective strategy for management of the disease. A factor that complicates the determination of resistance is its reported interaction with heading date (Hd) and plant height (Ph). In this study, we report findings from a genome-wide association study of resistance to STB in a world-wide collection of 96 wheat accessions. The collection was evaluated under conditions of artificial infection for seedling and adult plant STB resistance, Hd and Ph in field trials. Marker-trait associations (MTAs) were detected using a mixed linear model. STB disease severities showed significant phenotypic variation. In total, 73 MTAs involving STB resistance were detected. The chromosomal locations of some of them were similar to known Stb genes or quantitative trait loci; whereas others were detected in new genomic regions. The field experiment showed evidence of genetic association between STB resistance and Hd, but only for a few genotypes. This was corroborated at the molecular level, where a total of eight genomic regions associated with STB resistance were located in similar positions to MTAs for Hd. New genomic regions associated with STB resistance found here could be useful in wheat breeding aimed at controlling STB after validation in relevant genetic backgroundsFacultad de Ciencias Agrarias y ForestalesComisión de Investigaciones Científicas de la provincia de Buenos Aires2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/134978enginfo:eu-repo/semantics/altIdentifier/issn/0014-2336info:eu-repo/semantics/altIdentifier/issn/1573-5060info:eu-repo/semantics/altIdentifier/doi/10.1007/s10681-016-1820-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:13:11Zoai:sedici.unlp.edu.ar:10915/134978Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:13:11.341SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
title Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
spellingShingle Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
Gerard, Guillermo Sebastián
Ciencias Agrarias
DArT
Triticum aestivum
Zymoseptoria tritici
title_short Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
title_full Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
title_fullStr Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
title_full_unstemmed Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
title_sort Genome-wide association mapping of genetic factors controlling Septoria tritici blotch resistance and their associations with plant height and heading date in wheat
dc.creator.none.fl_str_mv Gerard, Guillermo Sebastián
Börner, Andreas
Lohwasser, Ulrike
Simón, María Rosa
author Gerard, Guillermo Sebastián
author_facet Gerard, Guillermo Sebastián
Börner, Andreas
Lohwasser, Ulrike
Simón, María Rosa
author_role author
author2 Börner, Andreas
Lohwasser, Ulrike
Simón, María Rosa
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
DArT
Triticum aestivum
Zymoseptoria tritici
topic Ciencias Agrarias
DArT
Triticum aestivum
Zymoseptoria tritici
dc.description.none.fl_txt_mv Septoria tritici blotch (STB), caused by the ascomycete fungus Zymoseptoria tritici (also known as Mycosphaerella graminicola), is one of the most devastating foliar wheat diseases worldwide. Host resistance is the most effective strategy for management of the disease. A factor that complicates the determination of resistance is its reported interaction with heading date (Hd) and plant height (Ph). In this study, we report findings from a genome-wide association study of resistance to STB in a world-wide collection of 96 wheat accessions. The collection was evaluated under conditions of artificial infection for seedling and adult plant STB resistance, Hd and Ph in field trials. Marker-trait associations (MTAs) were detected using a mixed linear model. STB disease severities showed significant phenotypic variation. In total, 73 MTAs involving STB resistance were detected. The chromosomal locations of some of them were similar to known Stb genes or quantitative trait loci; whereas others were detected in new genomic regions. The field experiment showed evidence of genetic association between STB resistance and Hd, but only for a few genotypes. This was corroborated at the molecular level, where a total of eight genomic regions associated with STB resistance were located in similar positions to MTAs for Hd. New genomic regions associated with STB resistance found here could be useful in wheat breeding aimed at controlling STB after validation in relevant genetic backgrounds
Facultad de Ciencias Agrarias y Forestales
Comisión de Investigaciones Científicas de la provincia de Buenos Aires
description Septoria tritici blotch (STB), caused by the ascomycete fungus Zymoseptoria tritici (also known as Mycosphaerella graminicola), is one of the most devastating foliar wheat diseases worldwide. Host resistance is the most effective strategy for management of the disease. A factor that complicates the determination of resistance is its reported interaction with heading date (Hd) and plant height (Ph). In this study, we report findings from a genome-wide association study of resistance to STB in a world-wide collection of 96 wheat accessions. The collection was evaluated under conditions of artificial infection for seedling and adult plant STB resistance, Hd and Ph in field trials. Marker-trait associations (MTAs) were detected using a mixed linear model. STB disease severities showed significant phenotypic variation. In total, 73 MTAs involving STB resistance were detected. The chromosomal locations of some of them were similar to known Stb genes or quantitative trait loci; whereas others were detected in new genomic regions. The field experiment showed evidence of genetic association between STB resistance and Hd, but only for a few genotypes. This was corroborated at the molecular level, where a total of eight genomic regions associated with STB resistance were located in similar positions to MTAs for Hd. New genomic regions associated with STB resistance found here could be useful in wheat breeding aimed at controlling STB after validation in relevant genetic backgrounds
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/134978
url http://sedici.unlp.edu.ar/handle/10915/134978
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0014-2336
info:eu-repo/semantics/altIdentifier/issn/1573-5060
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10681-016-1820-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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