Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen

Autores
Uranga, Juan Pablo; Schierenbeck, Matías; Perelló, Analía Edith; Lohwasser, Ulrike; Börner, Andreas; Simón, María Rosa
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The fungus Pyrenophora teres causing disease symptoms similar to P. tritici-repentis was recently detected on wheat in Argentina. After confirmation by molecular studies the pathogen was identified as P. teres f. maculata, part of a complex of leaf spots that affect wheat and other cereal crops. The objective of this work was to characterize the virulence and identify QTL conferring resistance to two isolates of P. teres f. maculata (Ptm) in a collection of 110 spring wheat genotypes previously assembled for association mapping and genotyped with 2836 DArT markers. Two isolates of Ptm (PT2047 and PT2050) were used in field experiments. To find marker-trait associations (MTAs) a mixed linear model implemented in TASSEL 5.1 software was used. Considerable phenotypic variation in disease severity was observed at the seedling and adult stages, and some accessions were resistant to both isolates over 2 years. Twelve MTAs identified with nine markers were significantly associated with resistance. The nine markers were distributed over seven chromosomal regions on 6 of the 21 wheat chromosomes. These QTL were novel since this is the first study to identify genomic regions associated with resistance to Ptm in wheat. Wheat genotypes with moderate to high levels of resistance to P. teres f. maculata were identified and will be useful in breeding programs.
Facultad de Ciencias Agrarias y Forestales
Materia
Ingeniería Agronómica
Disease resistance
Leaf spot
Net blotch
Tan spot
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/142077
Acceder
id SEDICI_eb6c25c91e095b62ca80fd91505699a9
oai_identifier_str oai:sedici.unlp.edu.ar:10915/142077
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogenUranga, Juan PabloSchierenbeck, MatíasPerelló, Analía EdithLohwasser, UlrikeBörner, AndreasSimón, María RosaIngeniería AgronómicaDisease resistanceLeaf spotNet blotchTan spotThe fungus Pyrenophora teres causing disease symptoms similar to P. tritici-repentis was recently detected on wheat in Argentina. After confirmation by molecular studies the pathogen was identified as P. teres f. maculata, part of a complex of leaf spots that affect wheat and other cereal crops. The objective of this work was to characterize the virulence and identify QTL conferring resistance to two isolates of P. teres f. maculata (Ptm) in a collection of 110 spring wheat genotypes previously assembled for association mapping and genotyped with 2836 DArT markers. Two isolates of Ptm (PT2047 and PT2050) were used in field experiments. To find marker-trait associations (MTAs) a mixed linear model implemented in TASSEL 5.1 software was used. Considerable phenotypic variation in disease severity was observed at the seedling and adult stages, and some accessions were resistant to both isolates over 2 years. Twelve MTAs identified with nine markers were significantly associated with resistance. The nine markers were distributed over seven chromosomal regions on 6 of the 21 wheat chromosomes. These QTL were novel since this is the first study to identify genomic regions associated with resistance to Ptm in wheat. Wheat genotypes with moderate to high levels of resistance to P. teres f. maculata were identified and will be useful in breeding programs.Facultad de Ciencias Agrarias y Forestales2020-03-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1-13http://sedici.unlp.edu.ar/handle/10915/142077enginfo:eu-repo/semantics/altIdentifier/issn/0014-2336info:eu-repo/semantics/altIdentifier/issn/1573-5060info:eu-repo/semantics/altIdentifier/doi/10.1007/s10681-020-02593-yinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:24:03Zoai:sedici.unlp.edu.ar:10915/142077Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:24:03.431SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
title Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
spellingShingle Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
Uranga, Juan Pablo
Ingeniería Agronómica
Disease resistance
Leaf spot
Net blotch
Tan spot
title_short Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
title_full Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
title_fullStr Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
title_full_unstemmed Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
title_sort Localization of QTL for resistance to Pyrenophora teres f. maculata, a new wheat pathogen
dc.creator.none.fl_str_mv Uranga, Juan Pablo
Schierenbeck, Matías
Perelló, Analía Edith
Lohwasser, Ulrike
Börner, Andreas
Simón, María Rosa
author Uranga, Juan Pablo
author_facet Uranga, Juan Pablo
Schierenbeck, Matías
Perelló, Analía Edith
Lohwasser, Ulrike
Börner, Andreas
Simón, María Rosa
author_role author
author2 Schierenbeck, Matías
Perelló, Analía Edith
Lohwasser, Ulrike
Börner, Andreas
Simón, María Rosa
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ingeniería Agronómica
Disease resistance
Leaf spot
Net blotch
Tan spot
topic Ingeniería Agronómica
Disease resistance
Leaf spot
Net blotch
Tan spot
dc.description.none.fl_txt_mv The fungus Pyrenophora teres causing disease symptoms similar to P. tritici-repentis was recently detected on wheat in Argentina. After confirmation by molecular studies the pathogen was identified as P. teres f. maculata, part of a complex of leaf spots that affect wheat and other cereal crops. The objective of this work was to characterize the virulence and identify QTL conferring resistance to two isolates of P. teres f. maculata (Ptm) in a collection of 110 spring wheat genotypes previously assembled for association mapping and genotyped with 2836 DArT markers. Two isolates of Ptm (PT2047 and PT2050) were used in field experiments. To find marker-trait associations (MTAs) a mixed linear model implemented in TASSEL 5.1 software was used. Considerable phenotypic variation in disease severity was observed at the seedling and adult stages, and some accessions were resistant to both isolates over 2 years. Twelve MTAs identified with nine markers were significantly associated with resistance. The nine markers were distributed over seven chromosomal regions on 6 of the 21 wheat chromosomes. These QTL were novel since this is the first study to identify genomic regions associated with resistance to Ptm in wheat. Wheat genotypes with moderate to high levels of resistance to P. teres f. maculata were identified and will be useful in breeding programs.
Facultad de Ciencias Agrarias y Forestales
description The fungus Pyrenophora teres causing disease symptoms similar to P. tritici-repentis was recently detected on wheat in Argentina. After confirmation by molecular studies the pathogen was identified as P. teres f. maculata, part of a complex of leaf spots that affect wheat and other cereal crops. The objective of this work was to characterize the virulence and identify QTL conferring resistance to two isolates of P. teres f. maculata (Ptm) in a collection of 110 spring wheat genotypes previously assembled for association mapping and genotyped with 2836 DArT markers. Two isolates of Ptm (PT2047 and PT2050) were used in field experiments. To find marker-trait associations (MTAs) a mixed linear model implemented in TASSEL 5.1 software was used. Considerable phenotypic variation in disease severity was observed at the seedling and adult stages, and some accessions were resistant to both isolates over 2 years. Twelve MTAs identified with nine markers were significantly associated with resistance. The nine markers were distributed over seven chromosomal regions on 6 of the 21 wheat chromosomes. These QTL were novel since this is the first study to identify genomic regions associated with resistance to Ptm in wheat. Wheat genotypes with moderate to high levels of resistance to P. teres f. maculata were identified and will be useful in breeding programs.
publishDate 2020
dc.date.none.fl_str_mv 2020-03-09
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/10915/142077
url http://sedici.unlp.edu.ar/handle/10915/142077
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/s10681-020-02593-y
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
1-13
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
_version_ 1846064294815334400
score 13.22299

Publicaciones similares