Cytogenetic characterization of a supernumerary chromosome segment and of B-chromosomes in Astyanax scabripinnis (Teleostei, Characidae)

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMaistro, E. L.
dc.creatorOliveira, C.
dc.creatorForesti, F.
dc.date2014-05-20T13:51:21Z
dc.date2016-10-25T17:02:58Z
dc.date2014-05-20T13:51:21Z
dc.date2016-10-25T17:02:58Z
dc.date2000-01-01
dc.date.accessioned2017-04-05T21:05:04Z
dc.date.available2017-04-05T21:05:04Z
dc.identifierGenetica. Dordrecht: Kluwer Academic Publ, v. 110, n. 2, p. 177-183, 2000.
dc.identifier0016-6707
dc.identifierhttp://hdl.handle.net/11449/18351
dc.identifierhttp://acervodigital.unesp.br/handle/11449/18351
dc.identifier10.1023/A:1017961411614
dc.identifierWOS:000170957100009
dc.identifierhttp://dx.doi.org/10.1023/A:1017961411614
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/864553
dc.descriptionThe chromosome complement of a local population of Astyanax scabripinnis in Brazil was investigated with emphasis on the study of the heterochromatin attached to the A-chromosomes and present in the macro B-chromosome. Analysis after C-banding, silver and CMA(3) staining, incorporation of 5-bromo-2'-deoxyuridine and chromosome digestion with nine restriction endonucleases revealed that the heterochromatin in the B-chromosomes was different from that found in the A-chromosomes. A polymorphism due to the presence of a supernumerary heterochromatic chromosome segment was observed in the population investigated. Some aspects related to the origin of the heterochromatin polymorphism in Astyanax scabripinnis are discussed.
dc.languageeng
dc.publisherKluwer Academic Publ
dc.relationGenetica
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAstyanax scabripinnis
dc.subjectB-chromosomes
dc.subjectchromosome banding
dc.subjectfish chromosomes
dc.subjectrestriction endonucleases
dc.subjectsupernumerary segments
dc.titleCytogenetic characterization of a supernumerary chromosome segment and of B-chromosomes in Astyanax scabripinnis (Teleostei, Characidae)
dc.typeOtro


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