Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces
- Autores
- Freilij, Damián; Defacio, Raquel Alicia; Heck, Mónica Isabel; Fariza, Silvina Ines; De Lucia, Adrían Darío; Ferreyra, Mariana Jimena; Paniego, Norma Beatriz; Dominguez, Pia Guadalupe; Lia, Veronica Viviana
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Poster y resumen
The northern region of Argentina is home to more than 60 native maize landraces, with two main genetic groups of high phenotypic variability: the high-altitude Andean landraces, present in northwestern Argentina (NWA), and the floury landraces of the northeast (NEA). This work evaluated 9 accessions from each region by means of reciprocal transplant gardens (Maimará, Jujuy & Cerro Azul, Misiones) in order to demonstrate their local adaptation. The variability of 14 agro-morphological and 6 phenological and yield characters was studied using general linear mixed models. NEA landraces showed higher mean phenotypic values, while the NWA ones showed the highest variation in both environments, with a negative correlation between collection altitude and most of the traits. Morphological structuring assessed by a discriminant analysis of principal components (DAPC) revealed the existence of groups unique to each region and a high degree of admixture, with each accession consisting of more than one of the inferred groups. The Andean NWA group was the most consistently recovered in cluster analyses, while NEA maize was divided into two groups not concordant with prior divisions. The search for selective signals used PST - FST comparisons, representing morphological and molecular neutral divergence, respectively. Directional selection signals were detected both within and between regions at most traits, being strongest at the region level and varying in magnitude between gardens. Moreover, fitness values in the NEA garden, measured as the number of plants with good seed quality per plot, showed maladaptation and low yields of NWA maize outside its native range. Taken together, our analyses suggest that several traits mediate local adaptation in maize landraces from northern Argentina. From a broader perspective, the extensive variability found within regions highlights the need to consider this source of variation in the design of in situ and ex situ conservation programs.
EEA Pergamino
Fil: Freilij, Damián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Defacio, Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Recursos Genéticos; Argentina
Fil: Heck, Mónica Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina
Fil: Fariza, Silvina I. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina
Fil: De Lucia, Adrián D. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina
Fil: Ferreyra, Mariana Jimena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Paniego, Norma Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Domínguez, Pía Guadalupe. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lía, Verónica Viviana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lia, Verónica Viviana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina - Fuente
- RAFV Conference 2023 XXXIV Argentinian Meeting of Plant Physiology. (Reunión de la Sociedad Argentina de Fisiología Vegetal) September 24 – 27, Rosario, Santa Fe, Argentina
- Materia
-
Maíz
Fenotipos
Genética de Poblaciones
Maize
Phenotypes
Population Genetics
Argentina
Fitness
Landrace
Local Adaptation
Reciprocal Transplant - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/21554
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Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landracesFreilij, DamiánDefacio, Raquel AliciaHeck, Mónica IsabelFariza, Silvina InesDe Lucia, Adrían DaríoFerreyra, Mariana JimenaPaniego, Norma BeatrizDominguez, Pia GuadalupeLia, Veronica VivianaMaízFenotiposGenética de PoblacionesMaizePhenotypesPopulation GeneticsArgentinaFitnessLandraceLocal AdaptationReciprocal TransplantPoster y resumenThe northern region of Argentina is home to more than 60 native maize landraces, with two main genetic groups of high phenotypic variability: the high-altitude Andean landraces, present in northwestern Argentina (NWA), and the floury landraces of the northeast (NEA). This work evaluated 9 accessions from each region by means of reciprocal transplant gardens (Maimará, Jujuy & Cerro Azul, Misiones) in order to demonstrate their local adaptation. The variability of 14 agro-morphological and 6 phenological and yield characters was studied using general linear mixed models. NEA landraces showed higher mean phenotypic values, while the NWA ones showed the highest variation in both environments, with a negative correlation between collection altitude and most of the traits. Morphological structuring assessed by a discriminant analysis of principal components (DAPC) revealed the existence of groups unique to each region and a high degree of admixture, with each accession consisting of more than one of the inferred groups. The Andean NWA group was the most consistently recovered in cluster analyses, while NEA maize was divided into two groups not concordant with prior divisions. The search for selective signals used PST - FST comparisons, representing morphological and molecular neutral divergence, respectively. Directional selection signals were detected both within and between regions at most traits, being strongest at the region level and varying in magnitude between gardens. Moreover, fitness values in the NEA garden, measured as the number of plants with good seed quality per plot, showed maladaptation and low yields of NWA maize outside its native range. Taken together, our analyses suggest that several traits mediate local adaptation in maize landraces from northern Argentina. From a broader perspective, the extensive variability found within regions highlights the need to consider this source of variation in the design of in situ and ex situ conservation programs.EEA PergaminoFil: Freilij, Damián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Defacio, Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Recursos Genéticos; ArgentinaFil: Heck, Mónica Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; ArgentinaFil: Fariza, Silvina I. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; ArgentinaFil: De Lucia, Adrián D. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; ArgentinaFil: Ferreyra, Mariana Jimena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaFil: Paniego, Norma Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Domínguez, Pía Guadalupe. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lía, Verónica Viviana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lia, Verónica Viviana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaSociedad Argentina de Fisiología Vegetal2025-03-06T12:04:56Z2025-03-06T12:04:56Z2023-10info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://hdl.handle.net/20.500.12123/21554RAFV Conference 2023 XXXIV Argentinian Meeting of Plant Physiology. (Reunión de la Sociedad Argentina de Fisiología Vegetal) September 24 – 27, Rosario, Santa Fe, Argentinareponame: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)2025-10-23T11:19:25Zoai:localhost:20.500.12123/21554instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:19:26.161INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
| dc.title.none.fl_str_mv |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces |
| title |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces |
| spellingShingle |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces Freilij, Damián Maíz Fenotipos Genética de Poblaciones Maize Phenotypes Population Genetics Argentina Fitness Landrace Local Adaptation Reciprocal Transplant |
| title_short |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces |
| title_full |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces |
| title_fullStr |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces |
| title_full_unstemmed |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces |
| title_sort |
Morphological diversity, selective signals and evidence of local adaptation in Argentinean maize landraces |
| dc.creator.none.fl_str_mv |
Freilij, Damián Defacio, Raquel Alicia Heck, Mónica Isabel Fariza, Silvina Ines De Lucia, Adrían Darío Ferreyra, Mariana Jimena Paniego, Norma Beatriz Dominguez, Pia Guadalupe Lia, Veronica Viviana |
| author |
Freilij, Damián |
| author_facet |
Freilij, Damián Defacio, Raquel Alicia Heck, Mónica Isabel Fariza, Silvina Ines De Lucia, Adrían Darío Ferreyra, Mariana Jimena Paniego, Norma Beatriz Dominguez, Pia Guadalupe Lia, Veronica Viviana |
| author_role |
author |
| author2 |
Defacio, Raquel Alicia Heck, Mónica Isabel Fariza, Silvina Ines De Lucia, Adrían Darío Ferreyra, Mariana Jimena Paniego, Norma Beatriz Dominguez, Pia Guadalupe Lia, Veronica Viviana |
| author2_role |
author author author author author author author author |
| dc.subject.none.fl_str_mv |
Maíz Fenotipos Genética de Poblaciones Maize Phenotypes Population Genetics Argentina Fitness Landrace Local Adaptation Reciprocal Transplant |
| topic |
Maíz Fenotipos Genética de Poblaciones Maize Phenotypes Population Genetics Argentina Fitness Landrace Local Adaptation Reciprocal Transplant |
| dc.description.none.fl_txt_mv |
Poster y resumen The northern region of Argentina is home to more than 60 native maize landraces, with two main genetic groups of high phenotypic variability: the high-altitude Andean landraces, present in northwestern Argentina (NWA), and the floury landraces of the northeast (NEA). This work evaluated 9 accessions from each region by means of reciprocal transplant gardens (Maimará, Jujuy & Cerro Azul, Misiones) in order to demonstrate their local adaptation. The variability of 14 agro-morphological and 6 phenological and yield characters was studied using general linear mixed models. NEA landraces showed higher mean phenotypic values, while the NWA ones showed the highest variation in both environments, with a negative correlation between collection altitude and most of the traits. Morphological structuring assessed by a discriminant analysis of principal components (DAPC) revealed the existence of groups unique to each region and a high degree of admixture, with each accession consisting of more than one of the inferred groups. The Andean NWA group was the most consistently recovered in cluster analyses, while NEA maize was divided into two groups not concordant with prior divisions. The search for selective signals used PST - FST comparisons, representing morphological and molecular neutral divergence, respectively. Directional selection signals were detected both within and between regions at most traits, being strongest at the region level and varying in magnitude between gardens. Moreover, fitness values in the NEA garden, measured as the number of plants with good seed quality per plot, showed maladaptation and low yields of NWA maize outside its native range. Taken together, our analyses suggest that several traits mediate local adaptation in maize landraces from northern Argentina. From a broader perspective, the extensive variability found within regions highlights the need to consider this source of variation in the design of in situ and ex situ conservation programs. EEA Pergamino Fil: Freilij, Damián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Defacio, Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Recursos Genéticos; Argentina Fil: Heck, Mónica Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina Fil: Fariza, Silvina I. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina Fil: De Lucia, Adrián D. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina Fil: Ferreyra, Mariana Jimena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Paniego, Norma Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Domínguez, Pía Guadalupe. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Lía, Verónica Viviana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Lia, Verónica Viviana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina |
| description |
Poster y resumen |
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2023 |
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2023-10 2025-03-06T12:04:56Z 2025-03-06T12:04:56Z |
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conferenceObject |
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eng |
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Sociedad Argentina de Fisiología Vegetal |
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Sociedad Argentina de Fisiología Vegetal |
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RAFV Conference 2023 XXXIV Argentinian Meeting of Plant Physiology. (Reunión de la Sociedad Argentina de Fisiología Vegetal) September 24 – 27, Rosario, Santa Fe, Argentina reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
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