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dc.contributor.author Vega, Alvaro Jose
dc.contributor.author Dematteis, Massimiliano
dc.date.available 2016-08-08T20:08:58Z
dc.date.issued 2015-12
dc.identifier.citation Vega, Alvaro Jose; Dematteis, Massimiliano; Cytotaxonomy of some species of Vernonanthura and Vernonia (Asteraceae, Vernonieae) from South America; Taylor & Francis; Caryologia; 69; 1; 12-2015; 29-37
dc.identifier.issn 0008-7114
dc.identifier.uri http://hdl.handle.net/11336/7009
dc.description.abstract The number and behavior of meiotic chromosomes in four populations of three species of Vernonanthura were analyzed. It was observed that all stages of meiosis were stable without chromosomal irregularities. The somatic chromosome number is reported for four populations of three species of Vernonanthura and two populations of Vernonia. All species were diploid with 2n = 34. The first chromosome count is presented for Vernonanthura chaquensis (2n = 17II and 2n = 34). The karyotypes were determined for Vernonanthura lucida (32m + 2sm), V. oligactoides (24m + 10sm) and V. pseudolinearifolia (28m + 6sm); they are presented for the first time. The total length of the karyotype was 31.67μ?40.48 μm. The average chromosome length was 1.86μ?2.38 μm and the centromeric index was 38.61?42.99. Vernonanthura oligactoides showed the smallest variation of chromosome length within the karyotype (1.42 μm) while V. squamulosa had the biggest (2.15 μm). The different karyotypic parameters were analyzed with two statistic tests. The resulting species arrangement from UPGMA grouping analysis fully fits with that obtained with principal component analysis (PCA). Both tests demonstrated congruence between karyotypic parameter and classification based on morphological characters.
dc.format application/pdf
dc.language.iso eng
dc.publisher Taylor & Francis
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Vernonanthura
dc.subject Vernonia
dc.subject kariotype
dc.subject mitosis
dc.subject.classification Ciencias de las Plantas, Botánica
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Cytotaxonomy of some species of Vernonanthura and Vernonia (Asteraceae, Vernonieae) from South America
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-07-26T15:09:20Z
dc.identifier.eissn 2165-5391
dc.journal.volume 69
dc.journal.number 1
dc.journal.pagination 29-37
dc.journal.pais Italia
dc.journal.ciudad Florencia
dc.description.fil Fil: Vega, Alvaro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
dc.description.fil Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina
dc.journal.title Caryologia
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/full/10.1080/00087114.2015.1109937
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/00087114.2015.1109937
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/10.1080/00087114.2015.1109937


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)