Synaptonemal complex analysis in the fish species Piaractus mesopotamicus and Colossoma macropomum, and in their interspecific hybrid

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dc.contributor.authorDos Santos, Vera Habda [UNESP]
dc.contributor.authorForesti, Fausto [UNESP]
dc.contributor.authorOliveira, Claudio [UNESP]
dc.contributor.authorDe Almeida-Toledo, Lurdes Foresti
dc.contributor.authorDe Toledo-Filho, Silvio Almeida
dc.contributor.authorBernardino, Geraldo
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionIBAMA
dc.date.accessioned2014-05-27T11:20:23Z
dc.date.available2014-05-27T11:20:23Z
dc.date.issued2002-01-01
dc.description.abstractThe surface-spreading technique for visualization of whole cell synaptonemal complex (SC) complements was employed to study the chromosome synapsis in spermatocytes of P. mesopotamicus, C. macropomum and in their interspecific hybrid (tambacu) with the main objective to analyze possible errors in chromosome pairing that could result in hybrid sterility. SC analysis showed that the parental species P. mesopotamicus and C. macropomum have 27 bivalents homogeneously synapsed. The SC in spermatocytes from the hybrid tambacu showed gross meiotic configurations in all cells analyzed. The spermatocytes exhibited a few chromosomes or well synapsed chromosome segments, while many chromosome segments did not have any synapsis. This result, allied to other genetical and cytogenetical evidence, reinforces the hypothesis that the hybrid tambacu is sterile. Further studies involving other aspects, such as behavior and physiology, should be conduced before the introduction of these hybrids in rivers and lakes.en
dc.description.affiliationDepto. de Morfologia Instituto de Biociência UNESP, 18618-000, Botucatu, SP
dc.description.affiliationDepto. de Biologia Instituto de Biociência USP, São Paulo, SP
dc.description.affiliationCtro. Pesquisa Treinamento A. IBAMA, Pirassununga, SP
dc.description.affiliationUnespDepto. de Morfologia Instituto de Biociência UNESP, 18618-000, Botucatu, SP
dc.format.extent73-79
dc.identifierhttp://dx.doi.org/10.1080/00087114.2002.10589260
dc.identifierhttp://www.caryologia.unifi.it/past_volumes/55_1/55_1abst.html
dc.identifier.citationCaryologia, v. 55, n. 1, p. 73-79, 2002.
dc.identifier.doi10.1080/00087114.2002.10589260
dc.identifier.issn0008-7114
dc.identifier.lattes0804793944846367
dc.identifier.scopus2-s2.0-0040671628
dc.identifier.urihttp://hdl.handle.net/11449/66758
dc.identifier.wosWOS:000175445500010
dc.language.isoeng
dc.relation.ispartofCaryologia
dc.relation.ispartofjcr0.608
dc.relation.ispartofsjr0,281
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectChromosomal evolution
dc.subjectFish
dc.subjectHybrid fish
dc.subjectMeiosis
dc.subjectSynaptonemal complex
dc.titleSynaptonemal complex analysis in the fish species Piaractus mesopotamicus and Colossoma macropomum, and in their interspecific hybriden
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
unesp.author.lattes0804793944846367
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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