Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)

Flow cytometry analysis has been widely applied in the determination of nuclear DNA content and ploidy level in many organisms. Despite being the most appropriate method for DNA content measurement, flow cytometry also presents some limitations. A fairly common, but little-studied problem is the eff...

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Main Authors: Eduardo Cires, Candela Cuesta, María Ángeles Fernández Casado, Herminio S. Nava, Víctor M. Vázquez, José Antonio Fernández Prieto
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2011-12-01
Series:Anales del Jardín Botánico de Madrid
Subjects:
Online Access:http://rjb.revistas.csic.es/index.php/rjb/article/view/362
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author Eduardo Cires
Candela Cuesta
María Ángeles Fernández Casado
Herminio S. Nava
Víctor M. Vázquez
José Antonio Fernández Prieto
author_facet Eduardo Cires
Candela Cuesta
María Ángeles Fernández Casado
Herminio S. Nava
Víctor M. Vázquez
José Antonio Fernández Prieto
author_sort Eduardo Cires
collection DOAJ
description Flow cytometry analysis has been widely applied in the determination of nuclear DNA content and ploidy level in many organisms. Despite being the most appropriate method for DNA content measurement, flow cytometry also presents some limitations. A fairly common, but little-studied problem is the effect on measurements of the presence of secondary metabolites. A good example is the genus Viola, which is composed of 525-600 species distributed worldwide. These species have proved to be problematic for flow cytometric analyses due to the release of extremely mucilaginous compounds into the nuclear suspension. In this work, the genome size of 13 species of Viola using flow cytometry are presented for the first time. Despite obtaining histograms with high coefficients of variation, we here present an optimized protocol to remove cytoplasmic compounds, particularly mucilaginous ones, from plant nuclei that pave the way for its application to estimate the genome size of other species exhibiting similar problems. Statistical analyses revealed significant differences between sections Viola and Melanium, and within each section (P < 0.001). Furthermore, statistically significant differences were not detected among samples of the same species.
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spelling doaj.art-ae4d6845df8f4098ab4c2de746638b7a2022-12-21T19:05:44ZengConsejo Superior de Investigaciones CientíficasAnales del Jardín Botánico de Madrid0211-13221988-31962011-12-0168213915410.3989/ajbm.2273341Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)Eduardo Cires0Candela Cuesta1María Ángeles Fernández Casado2Herminio S. Nava3Víctor M. Vázquez4José Antonio Fernández Prieto5Área de Botánica, Universidad de Oviedo, Departamento de Biología de Organismos y SistemasDepartment of Plant Systems Biology - Área de Fisiología Vegetal, Universidad de Oviedo, Departamento de Biología de Organismos y SistemasÁrea de Botánica, Universidad de Oviedo, Departamento de Biología de Organismos y SistemasÁrea de Botánica, Universidad de Oviedo, Departamento de Biología de Organismos y SistemasReal Instituto de Estudios AsturianosÁrea de Botánica, Universidad de Oviedo, Departamento de Biología de Organismos y SistemasFlow cytometry analysis has been widely applied in the determination of nuclear DNA content and ploidy level in many organisms. Despite being the most appropriate method for DNA content measurement, flow cytometry also presents some limitations. A fairly common, but little-studied problem is the effect on measurements of the presence of secondary metabolites. A good example is the genus Viola, which is composed of 525-600 species distributed worldwide. These species have proved to be problematic for flow cytometric analyses due to the release of extremely mucilaginous compounds into the nuclear suspension. In this work, the genome size of 13 species of Viola using flow cytometry are presented for the first time. Despite obtaining histograms with high coefficients of variation, we here present an optimized protocol to remove cytoplasmic compounds, particularly mucilaginous ones, from plant nuclei that pave the way for its application to estimate the genome size of other species exhibiting similar problems. Statistical analyses revealed significant differences between sections Viola and Melanium, and within each section (P < 0.001). Furthermore, statistically significant differences were not detected among samples of the same species.http://rjb.revistas.csic.es/index.php/rjb/article/view/362chromosome numberflow cytometrygenome sizemucilaginous compoundsnuclear dna contentploidy levelssection melaniumsection viola
spellingShingle Eduardo Cires
Candela Cuesta
María Ángeles Fernández Casado
Herminio S. Nava
Víctor M. Vázquez
José Antonio Fernández Prieto
Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)
Anales del Jardín Botánico de Madrid
chromosome number
flow cytometry
genome size
mucilaginous compounds
nuclear dna content
ploidy levels
section melanium
section viola
title Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)
title_full Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)
title_fullStr Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)
title_full_unstemmed Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)
title_short Isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds: an example in the genus Viola L. (Violaceae)
title_sort isolation of plant nuclei suitable for flow cytometry from species with extremely mucilaginous compounds an example in the genus viola l violaceae
topic chromosome number
flow cytometry
genome size
mucilaginous compounds
nuclear dna content
ploidy levels
section melanium
section viola
url http://rjb.revistas.csic.es/index.php/rjb/article/view/362
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