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dc.date.accessioned 2019-12-13T18:08:30Z
dc.date.available 2019-12-13T18:08:30Z
dc.date.issued 1982
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/87422
dc.description.abstract A karyological study of some populations of the Odontophrynus occidentalis group (2n=22) from Argentina is reported. Ammoniacal silver (Ag-AS) and alkaline Giemsa (CBG) staining have been performed on specimens from La Rioja, Mendoza, Malargue, Tamelen, Tapiluque, Valcheta, and Meseta de Somuncura. All populations showed active ribosomal cistrons (NORs) on chromosome 11. Some metaphases of three specimens from Mendoza and five from La Rioja also showed bands on 9. Centromeric and telomeric C-bands were common to all populations, and a block of heterochromatin on both sides of the centromere of 2 was remarkable in all but the La Rioja populations. The specimens from La Rioja showed a similar block of heterochromatin on the short arm of 1. Taxonomic studies of several specimens from these localities revealed differences in larval development, glandular pattern, the size of specimens, etc. As a whole, biological as well as karyological features suggest that the isolated population at La Rioja is a separate entity, at the species level, as described elsewhere. en
dc.format.extent 303-311 es
dc.language en es
dc.subject Odontophrynus occidentalis es
dc.subject Chromosomal evolution es
dc.title Chromosomal evolution in allopatric populations of the Odontophrynus occidentalis group (Amphibia, Anura) from western Argentina en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1159/000131776 es
sedici.identifier.issn 0301-0171 es
sedici.creator.person Ruiz, Itamar Romano García es
sedici.creator.person Cei, José Miguel Alfredo María es
sedici.creator.person Beçak, Willy es
sedici.description.note Material digitalizado en SEDICI gracias a la colaboración del Dr. Jorge Williams (FCNM-UNLP). es
sedici.subject.materias Zoología es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Naturales y Museo es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Cytogenetics and Cell Genetics es
sedici.relation.journalVolumeAndIssue vol. 33, no. 4 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)