Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models

Mostrar todas las versiones(4)

Fil: Bracco, Mariana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Buenos Aires, Argentina.

Guardado en:
Detalles Bibliográficos
Autores principales: Bracco, Mariana, Cascales, Jimena, Cámara Hernández, Julián A., Poggio, Lidia, Gottlieb, Alexandra M., Lia, Verónica V.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2016
Materias:
GENETIC DIVERSITY
GEOGRAPHIC DISTRIBUTION MODELS
GUARANI COMMUNITIES
LOWLAND SOUTH AMERICA
MAIZE LANDRACES
Acceso en línea:http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2016bracco
Aporte de:
FAUBA Digital - Facultad de Agronomía (UBA) de Universidad de Buenos Aires
id snrd:2016bracco
record_format dspace
spelling snrd:2016bracco2021-10-15T16:56:07Z 1000002 South America (continent) Bracco, Mariana Cascales, Jimena Cámara Hernández, Julián A. Poggio, Lidia Gottlieb, Alexandra M. Lia, Verónica V. 2016 Fil: Bracco, Mariana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Buenos Aires, Argentina. Fil: Bracco, Mariana. Universidad Nacional del Noroeste de la Provincia de Buenos Aires. Escuela de Ciencias Agrarias, Naturales y Ambientales. Pergamino, Buenos Aires, Argentina. Fil: Cascales, Jimena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Buenos Aires, Argentina. Fil: Cascales, Jimena. CONICET. Buenos Aires, Argentina. Fil: Cámara Hernández, Julián A. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. Fil: Poggio, Lidia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Buenos Aires, Argentina. Fil: Poggio, Lidia. CONICET. Buenos Aires, Argentina. Fil: Gottlieb, Alexandra M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Buenos Aires, Argentina. Fil: Gottlieb, Alexandra M. CONICET. Buenos Aires, Argentina. Fil: Lia, Verónica V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Buenos Aires, Argentina. Fil: Lia, Verónica V. CONICET. Buenos Aires, Argentina. Fil: Lia, Verónica V. Instituto de Biotecnología, CICVyA, INTA. Hurlingham, Buenos Aires, Argentina.Buenos Aires, Argentina. Background: Maize landraces from South America have traditionally been assigned to two main categories: Andean and Tropical Lowland germplasm. However, the genetic structure and affiliations of the lowland gene pools have been difficult to assess due to limited sampling and the lack of comparative analysis. Here, we examined SSR and Adh2 sequence variation in a diverse sample of maize landraces from lowland middle South America, and performed a comprehensive integrative analysis of population structure and diversity including already published data of archaeological and extant specimens from the Americas. Geographic distribution models were used to explore the relationship between environmental factors and the observed genetic structure. Results: Bayesian and multivariate analyses of population structure showed the existence of two previously overlooked lowland gene pools associated with Guaraní indigenous communities of middle South America. The singularity of this germplasm was also evidenced by the frequency distribution of microsatellite repeat motifs of the Adh2 locus and the distinct spatial pattern inferred from geographic distribution models. Conclusion: Our results challenge the prevailing view that lowland middle South America is just a contact zone between Andean and Tropical Lowland germplasm and highlight the occurrence of a unique, locally adapted gene pool. This information is relevant for the conservation and utilization of maize genetic resources, as well as for a better understanding of environment-genotype associations. application/pdf doi:10.1186/s12870-016-0874-5 issn:1471-2229 http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2016bracco eng info:eu-repo/semantics/openAccess openAccess http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4 BMC Plant Biology Vol.16 Art.186 http://www.biomedcentral.com/ GENETIC DIVERSITY GEOGRAPHIC DISTRIBUTION MODELS GUARANI COMMUNITIES LOWLAND SOUTH AMERICA MAIZE LANDRACES Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models info:eu-repo/semantics/article info:ar-repo/semantics/artículo publishedVersion info:eu-repo/semantics/publishedVersion
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-140
collection FAUBA Digital - Facultad de Agronomía (UBA)
language Inglés
orig_language_str_mv eng
topic GENETIC DIVERSITY
GEOGRAPHIC DISTRIBUTION MODELS
GUARANI COMMUNITIES
LOWLAND SOUTH AMERICA
MAIZE LANDRACES
spellingShingle GENETIC DIVERSITY
GEOGRAPHIC DISTRIBUTION MODELS
GUARANI COMMUNITIES
LOWLAND SOUTH AMERICA
MAIZE LANDRACES
Bracco, Mariana
Cascales, Jimena
Cámara Hernández, Julián A.
Poggio, Lidia
Gottlieb, Alexandra M.
Lia, Verónica V.
Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models
topic_facet GENETIC DIVERSITY
GEOGRAPHIC DISTRIBUTION MODELS
GUARANI COMMUNITIES
LOWLAND SOUTH AMERICA
MAIZE LANDRACES
description Fil: Bracco, Mariana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Buenos Aires, Argentina.
format Artículo
Artículo
publishedVersion
publishedVersion
author Bracco, Mariana
Cascales, Jimena
Cámara Hernández, Julián A.
Poggio, Lidia
Gottlieb, Alexandra M.
Lia, Verónica V.
author_facet Bracco, Mariana
Cascales, Jimena
Cámara Hernández, Julián A.
Poggio, Lidia
Gottlieb, Alexandra M.
Lia, Verónica V.
author_sort Bracco, Mariana
title Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models
title_short Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models
title_full Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models
title_fullStr Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models
title_full_unstemmed Dissecting maize diversity in lowland South America : genetic structure and geographic distribution models
title_sort dissecting maize diversity in lowland south america : genetic structure and geographic distribution models
publishDate 2016
url http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2016bracco
work_keys_str_mv AT braccomariana dissectingmaizediversityinlowlandsouthamericageneticstructureandgeographicdistributionmodels
AT cascalesjimena dissectingmaizediversityinlowlandsouthamericageneticstructureandgeographicdistributionmodels
AT camarahernandezjuliana dissectingmaizediversityinlowlandsouthamericageneticstructureandgeographicdistributionmodels
AT poggiolidia dissectingmaizediversityinlowlandsouthamericageneticstructureandgeographicdistributionmodels
AT gottliebalexandram dissectingmaizediversityinlowlandsouthamericageneticstructureandgeographicdistributionmodels
AT liaveronicav dissectingmaizediversityinlowlandsouthamericageneticstructureandgeographicdistributionmodels
_version_ 1851371381862694912

Ejemplares similares