Classification of argentine maize landraces in heterotic groups

Autores
Delucchi, Carla; Eyherabide, Guillermo; Lorea, Roberto Daniel; Presello, Daniel Alberto; Otegui, María Elena; López, César G.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The genetic diversity of maize (Zea mays L) is a valuable and strategic natural resource that plays a key role in the breeding progress. However, exploitation of genetic variability from landraces has not reached a significant level of utilization in breeding programs in Argentina yet. In order to establish their breeding potential, the best 15 out of a group of about 300 landraces from Argentina, were evaluated for various agronomic characters in testcrosses with five lines representing different heterotic groups. Testcrosses were evaluated in nine environments during two growing seasons. A factorial array of those landraces and tester lines was used. Differences for landraces, testers, and landrace x tester interactions were detected for ear diameter and length, ear attachment and plant height, and grain yield. Yield data were further analyzed following additive main effects (landrace and tester) and multiplicative interaction (landrace x tester) models. The first two principal components were significant and accounted for 67% of that interaction. The first axis was consistent with the Argentine flint vs. US dent (Mo17), and US dent (B73) vs. US dent (Mo17) heterotic patterns. The second axis exhibited a contrast between Argentine flint and US dent (B73 or B73 derived line) heterotic groups. The first two principal components of the landrace x tester interaction and mean performance of testcrosses were considered to identify eight landraces as parents of three composite populations.
EEA Pergamino
Fil: Delucchi, Carla. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Laboratorio Biotecnología; Argentina
Fil: Eyhérabide, Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio Biotecnología; Argentina
Fil: Lorea, Roberto D. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina
Fil: Presello, Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina
Fil: Otegui, María Elena. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina
Fil: López, César G. Universidad Nacional de Lomas de Zamora. Facultad de Ciencias Agrarias; Argentina
Fuente
Maydica 57 (1) : 26-33 (2012)
Materia
Maíz
Recursos Genéticos
Mejoramiento Genético
Maize
Genetic Resources
Genetic Improvement
Grupos Heteróticos
Maize Landraces
Testcross Evaluation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/11426
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oai_identifier_str oai:localhost:20.500.12123/11426
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network_name_str INTA Digital (INTA)
spelling Classification of argentine maize landraces in heterotic groupsDelucchi, CarlaEyherabide, GuillermoLorea, Roberto DanielPresello, Daniel AlbertoOtegui, María ElenaLópez, César G.MaízRecursos GenéticosMejoramiento GenéticoMaizeGenetic ResourcesGenetic ImprovementGrupos HeteróticosMaize LandracesTestcross EvaluationThe genetic diversity of maize (Zea mays L) is a valuable and strategic natural resource that plays a key role in the breeding progress. However, exploitation of genetic variability from landraces has not reached a significant level of utilization in breeding programs in Argentina yet. In order to establish their breeding potential, the best 15 out of a group of about 300 landraces from Argentina, were evaluated for various agronomic characters in testcrosses with five lines representing different heterotic groups. Testcrosses were evaluated in nine environments during two growing seasons. A factorial array of those landraces and tester lines was used. Differences for landraces, testers, and landrace x tester interactions were detected for ear diameter and length, ear attachment and plant height, and grain yield. Yield data were further analyzed following additive main effects (landrace and tester) and multiplicative interaction (landrace x tester) models. The first two principal components were significant and accounted for 67% of that interaction. The first axis was consistent with the Argentine flint vs. US dent (Mo17), and US dent (B73) vs. US dent (Mo17) heterotic patterns. The second axis exhibited a contrast between Argentine flint and US dent (B73 or B73 derived line) heterotic groups. The first two principal components of the landrace x tester interaction and mean performance of testcrosses were considered to identify eight landraces as parents of three composite populations.EEA PergaminoFil: Delucchi, Carla. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Laboratorio Biotecnología; ArgentinaFil: Eyhérabide, Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio Biotecnología; ArgentinaFil: Lorea, Roberto D. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; ArgentinaFil: Presello, Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; ArgentinaFil: Otegui, María Elena. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; ArgentinaFil: López, César G. Universidad Nacional de Lomas de Zamora. Facultad de Ciencias Agrarias; ArgentinaConsiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria2022-03-17T17:17:43Z2022-03-17T17:17:43Z2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/11426https://journals-crea.4science.it/index.php/maydica/article/view/6222279-8013Maydica 57 (1) : 26-33 (2012)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo: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)2025-09-04T09:49:17Zoai:localhost:20.500.12123/11426instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:49:17.996INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Classification of argentine maize landraces in heterotic groups
title Classification of argentine maize landraces in heterotic groups
spellingShingle Classification of argentine maize landraces in heterotic groups
Delucchi, Carla
Maíz
Recursos Genéticos
Mejoramiento Genético
Maize
Genetic Resources
Genetic Improvement
Grupos Heteróticos
Maize Landraces
Testcross Evaluation
title_short Classification of argentine maize landraces in heterotic groups
title_full Classification of argentine maize landraces in heterotic groups
title_fullStr Classification of argentine maize landraces in heterotic groups
title_full_unstemmed Classification of argentine maize landraces in heterotic groups
title_sort Classification of argentine maize landraces in heterotic groups
dc.creator.none.fl_str_mv Delucchi, Carla
Eyherabide, Guillermo
Lorea, Roberto Daniel
Presello, Daniel Alberto
Otegui, María Elena
López, César G.
author Delucchi, Carla
author_facet Delucchi, Carla
Eyherabide, Guillermo
Lorea, Roberto Daniel
Presello, Daniel Alberto
Otegui, María Elena
López, César G.
author_role author
author2 Eyherabide, Guillermo
Lorea, Roberto Daniel
Presello, Daniel Alberto
Otegui, María Elena
López, César G.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Maíz
Recursos Genéticos
Mejoramiento Genético
Maize
Genetic Resources
Genetic Improvement
Grupos Heteróticos
Maize Landraces
Testcross Evaluation
topic Maíz
Recursos Genéticos
Mejoramiento Genético
Maize
Genetic Resources
Genetic Improvement
Grupos Heteróticos
Maize Landraces
Testcross Evaluation
dc.description.none.fl_txt_mv The genetic diversity of maize (Zea mays L) is a valuable and strategic natural resource that plays a key role in the breeding progress. However, exploitation of genetic variability from landraces has not reached a significant level of utilization in breeding programs in Argentina yet. In order to establish their breeding potential, the best 15 out of a group of about 300 landraces from Argentina, were evaluated for various agronomic characters in testcrosses with five lines representing different heterotic groups. Testcrosses were evaluated in nine environments during two growing seasons. A factorial array of those landraces and tester lines was used. Differences for landraces, testers, and landrace x tester interactions were detected for ear diameter and length, ear attachment and plant height, and grain yield. Yield data were further analyzed following additive main effects (landrace and tester) and multiplicative interaction (landrace x tester) models. The first two principal components were significant and accounted for 67% of that interaction. The first axis was consistent with the Argentine flint vs. US dent (Mo17), and US dent (B73) vs. US dent (Mo17) heterotic patterns. The second axis exhibited a contrast between Argentine flint and US dent (B73 or B73 derived line) heterotic groups. The first two principal components of the landrace x tester interaction and mean performance of testcrosses were considered to identify eight landraces as parents of three composite populations.
EEA Pergamino
Fil: Delucchi, Carla. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Laboratorio Biotecnología; Argentina
Fil: Eyhérabide, Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio Biotecnología; Argentina
Fil: Lorea, Roberto D. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina
Fil: Presello, Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Maíz; Argentina
Fil: Otegui, María Elena. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina
Fil: López, César G. Universidad Nacional de Lomas de Zamora. Facultad de Ciencias Agrarias; Argentina
description The genetic diversity of maize (Zea mays L) is a valuable and strategic natural resource that plays a key role in the breeding progress. However, exploitation of genetic variability from landraces has not reached a significant level of utilization in breeding programs in Argentina yet. In order to establish their breeding potential, the best 15 out of a group of about 300 landraces from Argentina, were evaluated for various agronomic characters in testcrosses with five lines representing different heterotic groups. Testcrosses were evaluated in nine environments during two growing seasons. A factorial array of those landraces and tester lines was used. Differences for landraces, testers, and landrace x tester interactions were detected for ear diameter and length, ear attachment and plant height, and grain yield. Yield data were further analyzed following additive main effects (landrace and tester) and multiplicative interaction (landrace x tester) models. The first two principal components were significant and accounted for 67% of that interaction. The first axis was consistent with the Argentine flint vs. US dent (Mo17), and US dent (B73) vs. US dent (Mo17) heterotic patterns. The second axis exhibited a contrast between Argentine flint and US dent (B73 or B73 derived line) heterotic groups. The first two principal components of the landrace x tester interaction and mean performance of testcrosses were considered to identify eight landraces as parents of three composite populations.
publishDate 2012
dc.date.none.fl_str_mv 2012
2022-03-17T17:17:43Z
2022-03-17T17:17:43Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/20.500.12123/11426
https://journals-crea.4science.it/index.php/maydica/article/view/622
2279-8013
url http://hdl.handle.net/20.500.12123/11426
https://journals-crea.4science.it/index.php/maydica/article/view/622
identifier_str_mv 2279-8013
dc.language.none.fl_str_mv eng
language eng
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.publisher.none.fl_str_mv Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria
publisher.none.fl_str_mv Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria
dc.source.none.fl_str_mv Maydica 57 (1) : 26-33 (2012)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.623145

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