Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize

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Fil: Realini, María Florencia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución, Laboratorio de Citogenética y Evolución (LaCyE). Buenos Aires, Argentina.

Detalles Bibliográficos
Autores principales: Realini, María Florencia, Poggio, Lidia, Cámara Hernández, Julián A., González, Graciela Esther
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2018
Materias:
AUTOSOME
CHROMOSOME ANALYSIS
GERMPLASM
HUMAN
HUMAN CELL
KARYOTYPE
LANDRACE
MAIZE
NONHUMAN
SEQUENCE ANALYSIS
SOUTH AMERICA
Acceso en línea:http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2018realini
Aporte de:
FAUBA Digital - Facultad de Agronomía (UBA) de Universidad de Buenos Aires
id snrd:2018realini
record_format dspace
spelling snrd:2018realini2021-10-15T16:56:07Z Realini, María Florencia Poggio, Lidia Cámara Hernández, Julián A. González, Graciela Esther 2018 Fil: Realini, María Florencia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución, Laboratorio de Citogenética y Evolución (LaCyE). Buenos Aires, Argentina. Fil: Poggio, Lidia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución, Laboratorio de Citogenética y Evolución (LaCyE). Buenos Aires, Argentina. Fil: Cámara Hernández, Julián A. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Botánica Agrícola. Buenos Aires, Argentina. Fil: González, Graciela Esther. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución, Laboratorio de Citogenética y Evolución (LaCyE). Buenos Aires, Argentina. In Argentina there are two different centers of maize diversity, the Northeastern (NEA) and the Northwestern (NWA) regions of the country. In NEA, morphological studies identified 15 landraces cultivated by the Guaraní communities in Misiones Province. In the present study we analyzed the karyotype diversity of 20 populations of Guaraní maize landraces through classical and molecular cytogenetic analyses. Our results demonstrate significant intra and inter - populational variation in the percentage, number, size, chromosome position and frequencies of the heterochromatic blocks, which are called knobs. Knob sequence analysis (180 - bp and TR-1) did not show significant differences among Guaraní populations. B chromosomes were not detected, and abnormal 10 (AB10) chromosomes were found with low frequency (0.1f 0.40) in six populations. Our results allowed karyotypic characterization of each analyzed population, defining for the first time the chromosomal constitution of maize germplasm from NEA. The multivariate analysis (PCoA and UPGMA) of karyotype parameters allowed the distinction between two populations groups: the Popcorn and the Floury maize populations. These results are in agreement with previously published microsatellite and morphological/phenological studies. Finally, we compared our karyotype results with those previously reported for NWA and Central Region of South America maize. Our data suggest that there are important differences between maize from NEA and NWA at the karyotype level, supporting the hypothesis that there are two pathways of input of South America maize. Our results also confirm the existence of two centers of diversification of Argentinian native maize, NWA and NEA. This work contributes new knowledge about maize diversity, which is relevant for future plans to improve commercial maize, and for conservation of agrobiodiversity. grafs., tbls., fot. application/pdf doi:10.1371/journal.pone.0198398 issn:1932-6203 http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2018realini eng info:eu-repo/semantics/openAccess openAccess http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4 Plos One Vol.13, no.6 e0198398 https://www.plos.org AUTOSOME CHROMOSOME ANALYSIS GERMPLASM HUMAN HUMAN CELL KARYOTYPE LANDRACE MAIZE NONHUMAN SEQUENCE ANALYSIS SOUTH AMERICA Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize 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 AUTOSOME
CHROMOSOME ANALYSIS
GERMPLASM
HUMAN
HUMAN CELL
KARYOTYPE
LANDRACE
MAIZE
NONHUMAN
SEQUENCE ANALYSIS
SOUTH AMERICA
spellingShingle AUTOSOME
CHROMOSOME ANALYSIS
GERMPLASM
HUMAN
HUMAN CELL
KARYOTYPE
LANDRACE
MAIZE
NONHUMAN
SEQUENCE ANALYSIS
SOUTH AMERICA
Realini, María Florencia
Poggio, Lidia
Cámara Hernández, Julián A.
González, Graciela Esther
Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize
topic_facet AUTOSOME
CHROMOSOME ANALYSIS
GERMPLASM
HUMAN
HUMAN CELL
KARYOTYPE
LANDRACE
MAIZE
NONHUMAN
SEQUENCE ANALYSIS
SOUTH AMERICA
description Fil: Realini, María Florencia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución, Laboratorio de Citogenética y Evolución (LaCyE). Buenos Aires, Argentina.
format Artículo
Artículo
publishedVersion
publishedVersion
author Realini, María Florencia
Poggio, Lidia
Cámara Hernández, Julián A.
González, Graciela Esther
author_facet Realini, María Florencia
Poggio, Lidia
Cámara Hernández, Julián A.
González, Graciela Esther
author_sort Realini, María Florencia
title Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize
title_short Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize
title_full Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize
title_fullStr Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize
title_full_unstemmed Exploring karyotype diversity of Argentinian Guaraní maize landraces : relationship among South American maize
title_sort exploring karyotype diversity of argentinian guaraní maize landraces : relationship among south american maize
publishDate 2018
url http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2018realini
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AT camarahernandezjuliana exploringkaryotypediversityofargentinianguaranimaizelandracesrelationshipamongsouthamericanmaize
AT gonzalezgracielaesther exploringkaryotypediversityofargentinianguaranimaizelandracesrelationshipamongsouthamericanmaize
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