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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/doi/http://dx.doi.org/10.1080/00087114.2015.1109937
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/10.1080/00087114.2015.1109937


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