Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae).

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Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae). The objective of this work was to estimate the DNA content (2C) in four species of Spergula that inhabit Argentina and to analyze the variation of genome size (Cx) in relation to karyotypic and pal...

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Autores principales: Brem, Marta Carolina, Coulleri, Juan Pablo, Volponi, Carola Regina, Ferrucci, María Silvia
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2018
Materias:
Spergula
Argentina
contenido de ADN
nivel de ploidía
tamaño cromosómico
tamaño del polen.
DNA content
ploidy level
chromosome size
pollen size.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/20582
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
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institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Español
format Artículo revista
topic Spergula
Argentina
contenido de ADN
nivel de ploidía
tamaño cromosómico
tamaño del polen.
Spergula
Argentina
DNA content
ploidy level
chromosome size
pollen size.
spellingShingle Spergula
Argentina
contenido de ADN
nivel de ploidía
tamaño cromosómico
tamaño del polen.
Spergula
Argentina
DNA content
ploidy level
chromosome size
pollen size.
Brem, Marta Carolina
Coulleri, Juan Pablo
Volponi, Carola Regina
Ferrucci, María Silvia
Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae).
topic_facet Spergula
Argentina
contenido de ADN
nivel de ploidía
tamaño cromosómico
tamaño del polen.
Spergula
Argentina
DNA content
ploidy level
chromosome size
pollen size.
author Brem, Marta Carolina
Coulleri, Juan Pablo
Volponi, Carola Regina
Ferrucci, María Silvia
author_facet Brem, Marta Carolina
Coulleri, Juan Pablo
Volponi, Carola Regina
Ferrucci, María Silvia
author_sort Brem, Marta Carolina
title Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae).
title_short Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae).
title_full Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae).
title_fullStr Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae).
title_full_unstemmed Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae).
title_sort genome size, karyotypic features and pollen size in argentinian species of spergula (caryophyllaceae).
description Genome size, karyotypic features and pollen size in Argentinian species of Spergula (Caryophyllaceae). The objective of this work was to estimate the DNA content (2C) in four species of Spergula that inhabit Argentina and to analyze the variation of genome size (Cx) in relation to karyotypic and palynological features. The DNA content of five taxa and the genome size of four, which varied very little between species, were analyzed for the first time from Cx= 0.458 pg (S. salina, 4x) to Cx= 0.856 pg (S. arvensis, 2x). Two new chromosomal counts were recorded for the genus and the pollen size varied from small to medium. The regression coefficients suggest that the chromosome number varies inversely proportional in regards to the genome size, while the genome size presents a low relation with the total chromosome length (TCL) of the diploid genome, although it shows a high relation with respect to the average chromosome length (ACL). Meanwhile, the pollen size varies independently regarding to the genome size. The detected karyotypic variation could be due by numerical and structural changes during the genus evolution, while the pollen size could be related with selection pressures associated with dispersal strategies.
publisher Sociedad Argentina de Botánica
publishDate 2018
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/20582
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