Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping
History and environment shape crop biodiversity, particularly in areas with vulnerable human communities and ecosystems. Tracing crop biodiversity over time helps understand how rural societies cope with anthropogenic or climatic changes. Exceptionally well preserved ancient DNA of quinoa (Chenopodium quinoa Willd.) from the cold and arid Andes of Argentina has allowed us to track changes and continuities in quinoa diversity over 18 centuries, by coupling genotyping of 157 ancient and modern seeds by 24 SSR markers with cluster and coalescence analyses. Cluster analyses revealed clear population patterns separating modern and ancient quinoas. Coalescence-based analyses revealed that genetic drift within a single population cannot explain genetic differentiation among ancient and modern quinoas. The hypothesis of a genetic bottleneck related to the Spanish Conquest also does not seem to apply at a local scale. Instead, the most likely scenario is the replacement of preexisting quinoa gene pools with new ones of lower genetic diversity. This process occurred at least twice in the last 18 centuries: first, between the 6th and 12th centuries-a time of agricultural intensification well before the Inka and Spanish conquests-and then between the 13th century and today-a period marked by farming marginalization in the late 19th century likely due to a severe multidecadal drought. While these processes of local gene pool replacement do not imply losses of genetic diversity at the metapopulation scale, they support the view that gene pool replacement linked to social and environmental changes can result from opposite agricultural trajectories.
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Format: | info:ar-repo/semantics/artículo biblioteca |
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Plos ONE
2018-12-05
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Subjects: | Quinoa, Reservas Genéticas, Gene Pools, Biodiversity, Biodiversidad, Paleogenetics, Populations Genetics, Paleogenética, Genética de Poblaciones, Quinua, |
Online Access: | http://hdl.handle.net/20.500.12123/10622 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0207519 https://doi.org/10.1371/journal.pone.0207519 |
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Quinoa Reservas Genéticas Gene Pools Biodiversity Biodiversidad Paleogenetics Populations Genetics Paleogenética Genética de Poblaciones Quinua Quinoa Reservas Genéticas Gene Pools Biodiversity Biodiversidad Paleogenetics Populations Genetics Paleogenética Genética de Poblaciones Quinua |
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Quinoa Reservas Genéticas Gene Pools Biodiversity Biodiversidad Paleogenetics Populations Genetics Paleogenética Genética de Poblaciones Quinua Quinoa Reservas Genéticas Gene Pools Biodiversity Biodiversidad Paleogenetics Populations Genetics Paleogenética Genética de Poblaciones Quinua Winkel, Thierry Aguirre, María Gabriela Arizio, Carla Marcela Aschero, Carlos A. Babot, María del Pilar Benoit, Laure Burgarella, Concentta Costa Tártara, Sabrina María Dubois, Marie - Pierre Gay, Laurene Hocsman, Salomon Margaux, Jullien López-Campery, Sara María Manifesto, Maria Marcela Navascues, Miguel Oliszewski, Nurit Pintar, Elizabeth Zenboudji, Saliha Bertero, Héctor Daniel Joffre, Richard Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping |
description |
History and environment shape crop biodiversity, particularly in areas with vulnerable human communities and ecosystems. Tracing crop biodiversity over time helps understand how rural societies cope with anthropogenic or climatic changes. Exceptionally well preserved ancient DNA of quinoa (Chenopodium quinoa Willd.) from the cold and arid Andes of Argentina has allowed us to track changes and continuities in quinoa diversity over 18 centuries, by coupling genotyping of 157 ancient and modern seeds by 24 SSR markers with cluster and coalescence analyses. Cluster analyses revealed clear population patterns separating modern and ancient quinoas. Coalescence-based analyses revealed that genetic drift within a single population cannot explain genetic differentiation among ancient and modern quinoas. The hypothesis of a genetic bottleneck related to the Spanish Conquest also does not seem to apply at a local scale. Instead, the most likely scenario is the replacement of preexisting quinoa gene pools with new ones of lower genetic diversity. This process occurred at least twice in the last 18 centuries: first, between the 6th and 12th centuries-a time of agricultural intensification well before the Inka and Spanish conquests-and then between the 13th century and today-a period marked by farming marginalization in the late 19th century likely due to a severe multidecadal drought. While these processes of local gene pool replacement do not imply losses of genetic diversity at the metapopulation scale, they support the view that gene pool replacement linked to social and environmental changes can result from opposite agricultural trajectories. |
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Quinoa Reservas Genéticas Gene Pools Biodiversity Biodiversidad Paleogenetics Populations Genetics Paleogenética Genética de Poblaciones Quinua |
author |
Winkel, Thierry Aguirre, María Gabriela Arizio, Carla Marcela Aschero, Carlos A. Babot, María del Pilar Benoit, Laure Burgarella, Concentta Costa Tártara, Sabrina María Dubois, Marie - Pierre Gay, Laurene Hocsman, Salomon Margaux, Jullien López-Campery, Sara María Manifesto, Maria Marcela Navascues, Miguel Oliszewski, Nurit Pintar, Elizabeth Zenboudji, Saliha Bertero, Héctor Daniel Joffre, Richard |
author_facet |
Winkel, Thierry Aguirre, María Gabriela Arizio, Carla Marcela Aschero, Carlos A. Babot, María del Pilar Benoit, Laure Burgarella, Concentta Costa Tártara, Sabrina María Dubois, Marie - Pierre Gay, Laurene Hocsman, Salomon Margaux, Jullien López-Campery, Sara María Manifesto, Maria Marcela Navascues, Miguel Oliszewski, Nurit Pintar, Elizabeth Zenboudji, Saliha Bertero, Héctor Daniel Joffre, Richard |
author_sort |
Winkel, Thierry |
title |
Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping |
title_short |
Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping |
title_full |
Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping |
title_fullStr |
Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping |
title_full_unstemmed |
Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping |
title_sort |
discontinuities in quinoa biodiversity in the dry andes: an 18 - century perspective based on allelic genotyping |
publisher |
Plos ONE |
publishDate |
2018-12-05 |
url |
http://hdl.handle.net/20.500.12123/10622 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0207519 https://doi.org/10.1371/journal.pone.0207519 |
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oai:localhost:20.500.12123-106222022-12-22T10:31:01Z Discontinuities in quinoa biodiversity in the dry Andes: An 18 - century perspective based on allelic genotyping Winkel, Thierry Aguirre, María Gabriela Arizio, Carla Marcela Aschero, Carlos A. Babot, María del Pilar Benoit, Laure Burgarella, Concentta Costa Tártara, Sabrina María Dubois, Marie - Pierre Gay, Laurene Hocsman, Salomon Margaux, Jullien López-Campery, Sara María Manifesto, Maria Marcela Navascues, Miguel Oliszewski, Nurit Pintar, Elizabeth Zenboudji, Saliha Bertero, Héctor Daniel Joffre, Richard Quinoa Reservas Genéticas Gene Pools Biodiversity Biodiversidad Paleogenetics Populations Genetics Paleogenética Genética de Poblaciones Quinua History and environment shape crop biodiversity, particularly in areas with vulnerable human communities and ecosystems. Tracing crop biodiversity over time helps understand how rural societies cope with anthropogenic or climatic changes. Exceptionally well preserved ancient DNA of quinoa (Chenopodium quinoa Willd.) from the cold and arid Andes of Argentina has allowed us to track changes and continuities in quinoa diversity over 18 centuries, by coupling genotyping of 157 ancient and modern seeds by 24 SSR markers with cluster and coalescence analyses. Cluster analyses revealed clear population patterns separating modern and ancient quinoas. Coalescence-based analyses revealed that genetic drift within a single population cannot explain genetic differentiation among ancient and modern quinoas. The hypothesis of a genetic bottleneck related to the Spanish Conquest also does not seem to apply at a local scale. Instead, the most likely scenario is the replacement of preexisting quinoa gene pools with new ones of lower genetic diversity. This process occurred at least twice in the last 18 centuries: first, between the 6th and 12th centuries-a time of agricultural intensification well before the Inka and Spanish conquests-and then between the 13th century and today-a period marked by farming marginalization in the late 19th century likely due to a severe multidecadal drought. While these processes of local gene pool replacement do not imply losses of genetic diversity at the metapopulation scale, they support the view that gene pool replacement linked to social and environmental changes can result from opposite agricultural trajectories. Fil: Winkel, Thierry. Universite Paul - Valery Montpellier. Ecole Pratique des Hautes Etudes; Francia Fil: Aguirre, María Gabriela. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Miguel Lillo, Tucumán; Argentina Fil: Arizio, Carla Marcela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Aschero, Carlos A. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Miguel Lillo, Tucumán; Argentina Fil: Babot, María del Pilar. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Miguel Lillo, Tucumán; Argentina Fil: Benoit, Laure. Universite Paul - Valery Montpellier. Ecole Pratique des Hautes Etudes; Francia Fil: Burgarella, Concetta. CIRAD-INRA. Amelioration Genétique et Adaptation des Plantes Mediterranéennes et Tropicales, SupAgro; Francia Fil: Costa Tartara, Sabrina. Universidad Nacional de Luján. Departamento de Tecnología; Argentina Fil: Dubois, Marie - Pierre. Universite de Montpellier. Centre décologie Fonitionnelle et evolutive; Francia Fil: Gay, Laurene. CIRAD-INRA. Amelioration Genétique et Adaptation des Plantes Mediterranéennes et Tropicales, SupAgro; Francia Fil: Hocsman, Salomon. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Miguel Lillo, Tucumán; Argentina Fil: Margaux, Jullien. CIRAD-INRA. Amelioration Genétique et Adaptation des Plantes Mediterranéennes et Tropicales, SupAgro; Francia Fil: López - Campery, Sara María. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Miguel Lillo, Tucumán; Argentina Fil: Manifesto, Maria Marcela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Navascues, Miguel. CBGP, INRA, IRD, CIRAD. Centre de Biologie pour la Gestion des Populations, SupAgro; Francia. Institut de Biologie Computationnelle; Francia Fil: Oliszewski, Nurit. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales; Argentina. Instituto Miguel Lillo, Tucumán; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Superior de Estudios Sociales; Argentina. Fil: Pintar, Elizabeth. Austin Community College. Social Sciences Division, ; Estados Unidos Fil: Zenboudji, Saliha. CNRS. Centre d'Écologie Fonctionnelle et Évolutive; Francia. Université de Montpellier. UPVM3, EPHE, IRD, Montpellier, Francia. Fil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Joffre, Richard. CCNRS. Centre d'Écologie Fonctionnelle et Évolutive; Francia. Université de Montpellier. UPVM3, EPHE, IRD, Montpellier, Francia. 2021-10-29T10:30:52Z 2021-10-29T10:30:52Z 2018-12-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10622 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0207519 1932-6203 https://doi.org/10.1371/journal.pone.0207519 eng 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) application/pdf Plos ONE Plos One 13 (12) : e0207519 (2018) |