Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex

The tetraploid cytotype of Paspalum simplex has a wide geographical distribution and reproduces by apomixis, while the diploid grows in a restricted area in northern Argentina and behaves as cross-pollinated. The objective was to evaluate the genetic diversity among and within natural diploid and te...

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Detalles Bibliográficos
Autores principales: Brugnoli, Elsa Andrea, Urbani, Mario Hugo, Quarin, Camilo Luis, Martínez, Eric Javier, Acuña, Carlos Alberto
Formato: Artículo
Lenguaje:Inglés
Publicado: Crop Science Society of America 2022
Materias:
Paspalum Simplex
Apomixis
Diversity
Polypolidy
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/47743
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-47743
record_format dspace
spelling I48-R184-123456789-477432024-09-30T13:27:31Z Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex Brugnoli, Elsa Andrea Urbani, Mario Hugo Quarin, Camilo Luis Martínez, Eric Javier Acuña, Carlos Alberto Paspalum Simplex Apomixis Diversity Polypolidy The tetraploid cytotype of Paspalum simplex has a wide geographical distribution and reproduces by apomixis, while the diploid grows in a restricted area in northern Argentina and behaves as cross-pollinated. The objective was to evaluate the genetic diversity among and within natural diploid and tetraploid populations of P. simplex growing in sympatry and allopatry by studying the phenotypic variability and DNA polymorphisms. Twenty three phenotypic traits and ten ISSRs molecular markers were used for evaluating the variability present in 6 populations of P. simplex. Two populations were diploid and four were tetraploid. One of the tetraploid populations was sympatric to a diploid population, while the rest of the populations were allopatric. A rich diversity was observed for specific traits, especially for seasonal biomass yield, presence of a terminal raceme in the inflorescence, and leaf pubescence. The 2x and 4x populations growing in proximity were closely related. Diversity was higher within diploid populations when compared with the evaluated tetraploid populations. Among the tetraploid populations, the one sympatric with a diploid population exhibited the greatest diversity. Gene flow occurs between 2x sexual and 4x apomictic populations of P. simplex. Diploid populations seem to be the main source of the diversity observed among tetraploid populations. 2022-05-12T11:42:01Z 2022-05-12T11:42:01Z 2013-07 Artículo Brugnoli, Elsa Andrea, et al., 2013. Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex. Crop Science. Madison: Crop Science Society of America, no. 53, p. 1509-1516. E-ISSN 1435-0653. 0011-183X http://repositorio.unne.edu.ar/handle/123456789/47743 eng https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2012.08.0497 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Crop Science Society of America Crop Science, 2013, vol. 53, p. 1509-1516.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Paspalum Simplex
Apomixis
Diversity
Polypolidy
spellingShingle Paspalum Simplex
Apomixis
Diversity
Polypolidy
Brugnoli, Elsa Andrea
Urbani, Mario Hugo
Quarin, Camilo Luis
Martínez, Eric Javier
Acuña, Carlos Alberto
Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex
topic_facet Paspalum Simplex
Apomixis
Diversity
Polypolidy
description The tetraploid cytotype of Paspalum simplex has a wide geographical distribution and reproduces by apomixis, while the diploid grows in a restricted area in northern Argentina and behaves as cross-pollinated. The objective was to evaluate the genetic diversity among and within natural diploid and tetraploid populations of P. simplex growing in sympatry and allopatry by studying the phenotypic variability and DNA polymorphisms. Twenty three phenotypic traits and ten ISSRs molecular markers were used for evaluating the variability present in 6 populations of P. simplex. Two populations were diploid and four were tetraploid. One of the tetraploid populations was sympatric to a diploid population, while the rest of the populations were allopatric. A rich diversity was observed for specific traits, especially for seasonal biomass yield, presence of a terminal raceme in the inflorescence, and leaf pubescence. The 2x and 4x populations growing in proximity were closely related. Diversity was higher within diploid populations when compared with the evaluated tetraploid populations. Among the tetraploid populations, the one sympatric with a diploid population exhibited the greatest diversity. Gene flow occurs between 2x sexual and 4x apomictic populations of P. simplex. Diploid populations seem to be the main source of the diversity observed among tetraploid populations.
format Artículo
author Brugnoli, Elsa Andrea
Urbani, Mario Hugo
Quarin, Camilo Luis
Martínez, Eric Javier
Acuña, Carlos Alberto
author_facet Brugnoli, Elsa Andrea
Urbani, Mario Hugo
Quarin, Camilo Luis
Martínez, Eric Javier
Acuña, Carlos Alberto
author_sort Brugnoli, Elsa Andrea
title Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex
title_short Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex
title_full Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex
title_fullStr Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex
title_full_unstemmed Diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex
title_sort diversity in diploid, tetraploid and mixed diploid-tetraploid populations of paspalum simplex
publisher Crop Science Society of America
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/47743
work_keys_str_mv AT brugnolielsaandrea diversityindiploidtetraploidandmixeddiploidtetraploidpopulationsofpaspalumsimplex
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AT quarincamiloluis diversityindiploidtetraploidandmixeddiploidtetraploidpopulationsofpaspalumsimplex
AT martinezericjavier diversityindiploidtetraploidandmixeddiploidtetraploidpopulationsofpaspalumsimplex
AT acunacarlosalberto diversityindiploidtetraploidandmixeddiploidtetraploidpopulationsofpaspalumsimplex
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