Cytogenetic characterization of the silverside fish Odontesthes regia (Humboldt, 1833) (Teleostei: Atheriniformes: Atherinopsidae) from Iquique, Chile

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMuñoz, Carlos
dc.creatorNirchio, Mauro
dc.creatorPérez, Julio E.
dc.creatorRon, Ernesto
dc.creatorOliveira, Claudio
dc.creatorFerreira, Irani A.
dc.date2014-05-27T11:21:55Z
dc.date2016-10-25T18:22:25Z
dc.date2014-05-27T11:21:55Z
dc.date2016-10-25T18:22:25Z
dc.date2006-07-01
dc.date.accessioned2017-04-06T01:19:31Z
dc.date.available2017-04-06T01:19:31Z
dc.identifierRevista de Biologia Marina y Oceanografia, v. 41, n. 1, p. 57-62, 2006.
dc.identifier0717-3326
dc.identifier0718-1957
dc.identifierhttp://hdl.handle.net/11449/68985
dc.identifierhttp://acervodigital.unesp.br/handle/11449/68985
dc.identifier2-s2.0-34047189358.pdf
dc.identifier2-s2.0-34047189358
dc.identifierhttp://www.revbiolmar.cl/index.php?option=com_content&view=article&id=329&Itemid=69&lang=en
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/890284
dc.descriptionThis paper describes the karyotype of Odontesthes regia by means of Giemsa staining, C-banding, to reveal the distribution of the constitutive heterochromatin, and by Ag-staining and fluorescent in situ hybridization (FISH), to locate ribosomal genes (rDNA). The chromosome diploid modal count in the species was 2n = 48. The karyotype is composed of one submetacentric pair (pair 1), 16 subtelocentric pairs (pairs 2 to 17), and 7 acrocentric pairs (pairs 18 to 24). With the exception of pair 1 it was not possible to classify the homologous chromosomes accurately because differences in chromosome size were too slight between adjacent pairs. The distribution of C-banded heterochromatin allowed for a more accurate matching of the majority of chromosomes of the subtelocentric series. Silver staining of metaphase spreads allowed for the identification of Nucleolus Organizer Regions (Ag-NOR) on pair 1. FISH experiments showed that 18S rDNA sequences were located, as expected, in the same chromosome pair identified as the Ag-NOR-bearing one.
dc.languageeng
dc.relationRevista de Biologia Marina y Oceanografia
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectC-bands
dc.subjectFISH
dc.subjectKaryotype
dc.subjectNOR
dc.subjectchromosome
dc.subjectcytogenetics
dc.subjectkaryotype
dc.subjectteleost
dc.subjectChile
dc.subjectIquique
dc.subjectSouth America
dc.subjectTarapaca
dc.subjectArgentina elongata
dc.subjectAtheriniformes
dc.subjectAtherinopsidae
dc.subjectOdontesthes regia
dc.subjectTeleostei
dc.titleCytogenetic characterization of the silverside fish Odontesthes regia (Humboldt, 1833) (Teleostei: Atheriniformes: Atherinopsidae) from Iquique, Chile
dc.typeOtro


Este ítem pertenece a la siguiente institución