Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers

Autores
Ulrich, Maria Noelia; Toro, Alejandro Alberto; Rivas, Juan Gabriel; Delgado, Iván Darío; Prataviera, Antonio Gabriel; Tosto, Daniela Sandra
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Walnut is a globally important nut crop in terms of production and consumption. This study assesses the genetic diversity of the walnut germplasm collection from Catamarca, Argentina (including 13 registered cultivars), using Simple Sequence Repeat markers. Results revealed high genetic diversity, with alleles per locus ranging from 2 to 9 (average 4.67), expected heterozygosity between 0.47 and 0.72 (average 0.64), and 100% polymorphic loci. The average polymorphism information content (PIC) was 0.580, and the mean Shannon’s index (I) value was 1.19. Cluster analysis using Nei´s distances and Bayesian STRUCTURE approximation were consistent with the walnut varietal pedigree. This pioneering study in Argentina offers valuable insights for walnut conserva tion and breeding programs. It underscores the genetic richness of local walnut germplasm in Catamarca, highlighting its potential to enhance diversification and improvement of walnut production in Argentina.
Instituto de Biotecnología
Fil: Ulrich, Maria Noelia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Ulrich, Maria Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Toro, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina
Fil: Rivas, Juan Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Rivas, Juan Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Delgado, Iván Darío. Universidad Nacional de Catamarca. Genética; Argentina
Fil: Prataviera, Antonio Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentina
Fil: Tosto, Daniela Sandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Tosto, Daniela Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fuente
Crop Breeding and Applied Biotechnology 26 (2) : e551726212 (2026)
Materia
Microsatélites
Marcadores Genéticos
Juglans regia
Microsatellites
Genetic Markers
Argentina
Walnuts
Varieties
Nuez
Variedades
Catamarca
SSR Markers
Marcadores SSR
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:20.500.12123/26843
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spelling Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markersUlrich, Maria NoeliaToro, Alejandro AlbertoRivas, Juan GabrielDelgado, Iván DaríoPrataviera, Antonio GabrielTosto, Daniela SandraMicrosatélitesMarcadores GenéticosJuglans regiaMicrosatellitesGenetic MarkersArgentinaWalnutsVarietiesNuezVariedadesCatamarcaSSR MarkersMarcadores SSRWalnut is a globally important nut crop in terms of production and consumption. This study assesses the genetic diversity of the walnut germplasm collection from Catamarca, Argentina (including 13 registered cultivars), using Simple Sequence Repeat markers. Results revealed high genetic diversity, with alleles per locus ranging from 2 to 9 (average 4.67), expected heterozygosity between 0.47 and 0.72 (average 0.64), and 100% polymorphic loci. The average polymorphism information content (PIC) was 0.580, and the mean Shannon’s index (I) value was 1.19. Cluster analysis using Nei´s distances and Bayesian STRUCTURE approximation were consistent with the walnut varietal pedigree. This pioneering study in Argentina offers valuable insights for walnut conserva tion and breeding programs. It underscores the genetic richness of local walnut germplasm in Catamarca, highlighting its potential to enhance diversification and improvement of walnut production in Argentina.Instituto de BiotecnologíaFil: Ulrich, Maria Noelia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; ArgentinaFil: Ulrich, Maria Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Toro, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; ArgentinaFil: Rivas, Juan Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; ArgentinaFil: Rivas, Juan Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Delgado, Iván Darío. Universidad Nacional de Catamarca. Genética; ArgentinaFil: Prataviera, Antonio Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; ArgentinaFil: Tosto, Daniela Sandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; ArgentinaFil: Tosto, Daniela Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaBrazilian Society of Plant Breeding2026-06-30T10:06:57Z2026-06-30T10:06:57Z2026-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/26843https://cbab.sbmp.org.br/2026/03/18/7777/1984-7033Crop Breeding and Applied Biotechnology 26 (2) : e551726212 (2026)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)2026-09-24T11:43:23Zoai:localhost:20.500.12123/26843instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-09-24 11:43:24.447INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
title Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
spellingShingle Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
Ulrich, Maria Noelia
Microsatélites
Marcadores Genéticos
Juglans regia
Microsatellites
Genetic Markers
Argentina
Walnuts
Varieties
Nuez
Variedades
Catamarca
SSR Markers
Marcadores SSR
title_short Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
title_full Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
title_fullStr Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
title_full_unstemmed Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
title_sort Genetic diversity assessment of walnt (Juglans regia L.) varieties from Argentina using SSR markers
dc.creator.none.fl_str_mv Ulrich, Maria Noelia
Toro, Alejandro Alberto
Rivas, Juan Gabriel
Delgado, Iván Darío
Prataviera, Antonio Gabriel
Tosto, Daniela Sandra
author Ulrich, Maria Noelia
author_facet Ulrich, Maria Noelia
Toro, Alejandro Alberto
Rivas, Juan Gabriel
Delgado, Iván Darío
Prataviera, Antonio Gabriel
Tosto, Daniela Sandra
author_role author
author2 Toro, Alejandro Alberto
Rivas, Juan Gabriel
Delgado, Iván Darío
Prataviera, Antonio Gabriel
Tosto, Daniela Sandra
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Microsatélites
Marcadores Genéticos
Juglans regia
Microsatellites
Genetic Markers
Argentina
Walnuts
Varieties
Nuez
Variedades
Catamarca
SSR Markers
Marcadores SSR
topic Microsatélites
Marcadores Genéticos
Juglans regia
Microsatellites
Genetic Markers
Argentina
Walnuts
Varieties
Nuez
Variedades
Catamarca
SSR Markers
Marcadores SSR
dc.description.none.fl_txt_mv Walnut is a globally important nut crop in terms of production and consumption. This study assesses the genetic diversity of the walnut germplasm collection from Catamarca, Argentina (including 13 registered cultivars), using Simple Sequence Repeat markers. Results revealed high genetic diversity, with alleles per locus ranging from 2 to 9 (average 4.67), expected heterozygosity between 0.47 and 0.72 (average 0.64), and 100% polymorphic loci. The average polymorphism information content (PIC) was 0.580, and the mean Shannon’s index (I) value was 1.19. Cluster analysis using Nei´s distances and Bayesian STRUCTURE approximation were consistent with the walnut varietal pedigree. This pioneering study in Argentina offers valuable insights for walnut conserva tion and breeding programs. It underscores the genetic richness of local walnut germplasm in Catamarca, highlighting its potential to enhance diversification and improvement of walnut production in Argentina.
Instituto de Biotecnología
Fil: Ulrich, Maria Noelia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Ulrich, Maria Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Toro, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina
Fil: Rivas, Juan Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Rivas, Juan Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Delgado, Iván Darío. Universidad Nacional de Catamarca. Genética; Argentina
Fil: Prataviera, Antonio Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentina
Fil: Tosto, Daniela Sandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Tosto, Daniela Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Walnut is a globally important nut crop in terms of production and consumption. This study assesses the genetic diversity of the walnut germplasm collection from Catamarca, Argentina (including 13 registered cultivars), using Simple Sequence Repeat markers. Results revealed high genetic diversity, with alleles per locus ranging from 2 to 9 (average 4.67), expected heterozygosity between 0.47 and 0.72 (average 0.64), and 100% polymorphic loci. The average polymorphism information content (PIC) was 0.580, and the mean Shannon’s index (I) value was 1.19. Cluster analysis using Nei´s distances and Bayesian STRUCTURE approximation were consistent with the walnut varietal pedigree. This pioneering study in Argentina offers valuable insights for walnut conserva tion and breeding programs. It underscores the genetic richness of local walnut germplasm in Catamarca, highlighting its potential to enhance diversification and improvement of walnut production in Argentina.
publishDate 2026
dc.date.none.fl_str_mv 2026-06-30T10:06:57Z
2026-06-30T10:06:57Z
2026-05
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/20.500.12123/26843
https://cbab.sbmp.org.br/2026/03/18/7777/
1984-7033
url http://hdl.handle.net/20.500.12123/26843
https://cbab.sbmp.org.br/2026/03/18/7777/
identifier_str_mv 1984-7033
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 Brazilian Society of Plant Breeding
publisher.none.fl_str_mv Brazilian Society of Plant Breeding
dc.source.none.fl_str_mv Crop Breeding and Applied Biotechnology 26 (2) : e551726212 (2026)
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 12.733355

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