Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae)

Cytogenetic characterization and determination of DNA content by flow cytometry of five species of Mecardonia Ruiz et Pavon, 1798 (Gratiolae, Plantaginaceae) was performed. This is the first study of nuclear DNA content carried out in the genus. Mitotic analysis revealed a base chromosome number...

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Autores principales: Sosa, María de las Mercedes, Angulo, María Betiana, Greppi, Julián Alejandro, Bugallo, Verónica
Formato: Artículo
Lenguaje:Inglés
Publicado: Pensoft Publishers 2021
Materias:
Gratiolae
Polyploidy
Chromosome number
DNA content
Flow cytometry
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/30296
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-30296
record_format dspace
spelling I48-R184-123456789-302962025-03-06T11:10:53Z Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae) Sosa, María de las Mercedes Angulo, María Betiana Greppi, Julián Alejandro Bugallo, Verónica Gratiolae Polyploidy Chromosome number DNA content Flow cytometry Cytogenetic characterization and determination of DNA content by flow cytometry of five species of Mecardonia Ruiz et Pavon, 1798 (Gratiolae, Plantaginaceae) was performed. This is the first study of nuclear DNA content carried out in the genus. Mitotic analysis revealed a base chromosome number x = 11 for all entities and different ploidy levels, ranging from diploid (2n = 2x = 22) to hexaploid (2n = 6x = 66). The results include the first report of the chromosome numbers for M. flagellaris (Chamisso & Schlechtendal, 1827) (2n = 22), M. grandiflora (Bentham) Pennell, 1946 (2n = 22), M. kamogawae Greppi & Hagiwara, 2011 (2n = 66), and Mecardonia sp. (2n = 44). The three ploidy levels here reported suggest that polyploidy is common in Mecardonia and appear to be an important factor in the evolution of this genus. The 2C- and 1Cx-values were also estimated in all the species. The 2C-values ranged from 1.91 to 5.29 pg. The 1Cx-values ranged from 0.88 to 1.03 pg. The general tendency indicated a decrease in the 1Cx-value with increasing ploidy level. The significance of the results is discussed in relation to taxonomy of the genus. 2021-12-07T15:00:14Z 2021-12-07T15:00:14Z 2016-12-14 Artículo Sosa, María de las Mercedes, et al., 2016. Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae). Comparative Cytogenetics. Sofia: Pensoft Publishers, vol. 10, no. 4, p. 769-780. ISSN 1993-0771. 1993-0771 http://repositorio.unne.edu.ar/handle/123456789/30296 eng https://doi.org/10.3897/CompCytogen.v10i4.10362 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Pensoft Publishers Comparative Cytogenetics, 2016, vol. 10, no. 4, p. 769-780.
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 Gratiolae
Polyploidy
Chromosome number
DNA content
Flow cytometry
spellingShingle Gratiolae
Polyploidy
Chromosome number
DNA content
Flow cytometry
Sosa, María de las Mercedes
Angulo, María Betiana
Greppi, Julián Alejandro
Bugallo, Verónica
Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae)
topic_facet Gratiolae
Polyploidy
Chromosome number
DNA content
Flow cytometry
description Cytogenetic characterization and determination of DNA content by flow cytometry of five species of Mecardonia Ruiz et Pavon, 1798 (Gratiolae, Plantaginaceae) was performed. This is the first study of nuclear DNA content carried out in the genus. Mitotic analysis revealed a base chromosome number x = 11 for all entities and different ploidy levels, ranging from diploid (2n = 2x = 22) to hexaploid (2n = 6x = 66). The results include the first report of the chromosome numbers for M. flagellaris (Chamisso & Schlechtendal, 1827) (2n = 22), M. grandiflora (Bentham) Pennell, 1946 (2n = 22), M. kamogawae Greppi & Hagiwara, 2011 (2n = 66), and Mecardonia sp. (2n = 44). The three ploidy levels here reported suggest that polyploidy is common in Mecardonia and appear to be an important factor in the evolution of this genus. The 2C- and 1Cx-values were also estimated in all the species. The 2C-values ranged from 1.91 to 5.29 pg. The 1Cx-values ranged from 0.88 to 1.03 pg. The general tendency indicated a decrease in the 1Cx-value with increasing ploidy level. The significance of the results is discussed in relation to taxonomy of the genus.
format Artículo
author Sosa, María de las Mercedes
Angulo, María Betiana
Greppi, Julián Alejandro
Bugallo, Verónica
author_facet Sosa, María de las Mercedes
Angulo, María Betiana
Greppi, Julián Alejandro
Bugallo, Verónica
author_sort Sosa, María de las Mercedes
title Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae)
title_short Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae)
title_full Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae)
title_fullStr Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae)
title_full_unstemmed Chromosome numbers and DNA content in some species of mecardonia (gratiolae, plantaginaceae)
title_sort chromosome numbers and dna content in some species of mecardonia (gratiolae, plantaginaceae)
publisher Pensoft Publishers
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/30296
work_keys_str_mv AT sosamariadelasmercedes chromosomenumbersanddnacontentinsomespeciesofmecardoniagratiolaeplantaginaceae
AT angulomariabetiana chromosomenumbersanddnacontentinsomespeciesofmecardoniagratiolaeplantaginaceae
AT greppijulianalejandro chromosomenumbersanddnacontentinsomespeciesofmecardoniagratiolaeplantaginaceae
AT bugalloveronica chromosomenumbersanddnacontentinsomespeciesofmecardoniagratiolaeplantaginaceae
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