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SYNAPTONEMAL COMPLEX-ANALYSIS IN SPERMATOCYTES OF TILAPIA, OREOCHROMIS-NILOTICUS (PISCES, CICHLIDAE)

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dc.contributor.authorForesti, F.
dc.contributor.authorOliveira, C.
dc.contributor.authorGaletti, P. M.
dc.contributor.authorDealmeidatoledo, L. F.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:29:14Z
dc.date.available2014-05-20T15:29:14Z
dc.date.issued1993-12-01
dc.description.abstractSome adaptations of the synaptonemal complex (SC) whole-mounting technique first used in plants permitted its application to meiotic studies in tilapia, Oreochromis niloticus. Direct observation of the chromosome pairing process and bivalent structure during the meiotic prophase of this fish species by light and electron microscopy permitted the analysis of SCs in autosomes and the possible identification of sex chromosomes. The analysis of SCs in spermatocytes of 0. niloticus revealed that all 22 bivalent chromosomes completely paired, except for the occurrence of a size heteromorphism in the terminal region of the largest bivalent associated with the presence of an incompletely paired segment during the synapsis process, which may be the cytological visualization of an XX/XY sex chromosome system in this species.en
dc.description.affiliationUNIV FED SAO CARLOS,DEPT GENET & EVOLUCAO,SAO CARLOS,SP,BRAZIL
dc.description.affiliationUNIV SAO PAULO,INST BIOCIENCIAS,DEPT BIOL,SAO PAULO,SP,BRAZIL
dc.format.extent1124-1128
dc.identifierhttp://dx.doi.org/10.1139/g93-150
dc.identifier.citationGenome. Ottawa: Natl Research Council Canada, v. 36, n. 6, p. 1124-1128, 1993.
dc.identifier.doi10.1139/g93-150
dc.identifier.issn0831-2796
dc.identifier.lattes0804793944846367
dc.identifier.urihttp://hdl.handle.net/11449/38864
dc.identifier.wosWOS:A1993MQ45900017
dc.language.isoeng
dc.publisherNatl Research Council Canada
dc.relation.ispartofGenome
dc.relation.ispartofjcr1.892
dc.relation.ispartofsjr0,655
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectFISH CYTOGENETICSpt
dc.subjectSYNAPTONEMAL COMPLEXpt
dc.subjectFISH MEIOSISpt
dc.subjectSEX CHROMOSOMESpt
dc.subjectNUCLEOLUS ORGANIZER REGIONSpt
dc.titleSYNAPTONEMAL COMPLEX-ANALYSIS IN SPERMATOCYTES OF TILAPIA, OREOCHROMIS-NILOTICUS (PISCES, CICHLIDAE)en
dc.typeArtigo
dcterms.licensehttp://www.nrcresearchpress.com/page/authors/information/rights
dcterms.rightsHolderNatl Research Council Canada
dspace.entity.typePublication
unesp.author.lattes0804793944846367
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Botucatupt
unesp.departmentMorfologia - IBBpt

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Botucatu - IBB - Instituto de Biociências