CYTOGENETIC AND DNA CONTENT IN 6 GENERA OF THE FAMILY CALLICHTHYIDAE (PISCES, SILURIFORMES)

dc.contributorUniversidade de São Paulo (USP)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:27:47Z
dc.date.accessioned2022-10-05T16:45:23Z
dc.date.available2014-05-20T15:27:47Z
dc.date.available2022-10-05T16:45:23Z
dc.date.created2014-05-20T15:27:47Z
dc.date.issued1993-04-01
dc.identifierCaryologia. Florence: Univ Florence Botany Inst, v. 46, n. 2-3, p. 171-188, 1993.
dc.identifier0008-7114
dc.identifierhttp://hdl.handle.net/11449/37716
dc.identifierWOS:A1993MH88400009
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3909189
dc.description.abstractCytogenetic studies involving conventional Giemsa staining, C-banding analysis and silver staining of NORs were performed on nine species belonging to six genera of the family Callichthyidae. The diploid number ranged from 2n = 44 to 2n = 100, the number of chromosomal pairs with NORs ranged from 1 to 4 and constitutive heterochromatin was mainly distributed in the centromeric and/or pericentromeric position of the chromosomes. The DNA content of erythrocytes from six species studied ranged from 1.18 +/- 0.07 to 2.77 +/- 0.22 pg/nucleus. The extensive variability in karyotypes and in nuclear DNA content detected are in accordance with the initial hypothesis that chromosome rearrangements and polyploidy have played a significant role in the evolutionary history of Callichthyidae.
dc.languageeng
dc.publisherUniv Florence Botany Inst
dc.relationCaryologia
dc.relation0.608
dc.relation0,281
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCALLICHTHYIDAE
dc.subjectKARYOTYPE
dc.subjectNOR
dc.subjectC-BAND
dc.subjectDNA CONTENT
dc.titleCYTOGENETIC AND DNA CONTENT IN 6 GENERA OF THE FAMILY CALLICHTHYIDAE (PISCES, SILURIFORMES)
dc.typeArtigo


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