Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/162807
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dc.contributor.authorMOURA, R. de C. dept_BR
dc.contributor.authorMELO, N. F. dept_BR
dc.contributor.authorSOUZA, M. J. dept_BR
dc.date.accessioned2011-04-09T20:52:52Z-
dc.date.available2011-04-09T20:52:52Z-
dc.date.created2008-06-05pt_BR
dc.date.issued2008pt_BR
dc.identifier.citationGenetics and Molecular Biology, Ribeirão Preto, v. 31, n. 2, p. 431-437, 2008.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/162807pt_BR
dc.descriptionEuchroma giganteawas karyotypically studied using conventional staining, C-banding, silver nitrate staining and ribosomal fluorescent in situ hybridization (rDNA FISH). Broad wide autosomal polymorphism and a complex sex determination system were found in this beetle. Karyotype complements ranging from 2n = 32, X1X2X3Y1Y2Y3 to 2n = 36,X1X2X3Y1Y2Y3 were detected in the sample analyzed. Punctiform suernumerary chromosomes were present in the different karyotypes. The karyotypic evolution of Brazilian E. giganteamay have taken two directions, reduction in the diploid number of 2n = 36 to 24 through centric fusions or 2n = 24 to 36 due to chromosomal fissions. In addition, pericentric inversions were also involved. The complex multiple sex mechanism of this species seems to be old and well established since it is found in specimens from different populations. Small pericentromeric blocks of constitutive heterochromatin were located on the autosomes and terminal blocks were also found on some small pairs. The sex chromosomes showed larger constitutive heterochromatin blocks. Silver nitrate staining during prophase I of meiosis showed labeling of the sex chromosome chain. However, the rDNA sites could only be precisely determined by FISH, which permitted the identification of these ribosomal sites on chromosomes X1 and X2 of this species.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectCromossomopt_BR
dc.subjectRONpt_BR
dc.subjectDNArpt_BR
dc.titleHigh Levels of Chromosomal Differentiation in Euchroma gigantea L. 1735 (Coleoptera, Buprestidae)pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2018-09-03T11:11:11Zpt_BR
dc.subject.thesagroColeópteropt_BR
riaa.ainfo.id162807pt_BR
riaa.ainfo.lastupdate2018-09-03 -03:00:00pt_BR
dc.contributor.institutionRita de Cássia de Moura, UFPEpt_BR
dc.contributor.institutionNATONIEL FRANKLIN DE MELO, CPATSApt_BR
dc.contributor.institutionMaria José de Souza, UFPE.pt_BR
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