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	Provedor de dados BABT (1) Genet. Mol. Biol. (1) Autor Carvalho,Rafael Augusto de (1) Dias,Ana Lúcia (1) Fernandes,Anderson (1) Krinski,Diones (1) Pompolo,Silvia das Graças (1) Rocha,Marla Piumbini (1) Mais... Palavra-chave Heteromorphism (2) AgNOR (1) Chromomycin A3 (1) Chromosome (1) Fish chromosome (1) Fluorochrome (1) In situ hibridization (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2010 (1) 2007 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Interindividual size heteromorphism of NOR and chromosomal location of 5S rRNA genes in Iheringichthys labrosus BABT Carvalho,Rafael Augusto de; Dias,Ana Lúcia. Twenty-five specimens of Iheringichthys labrosus from the Capivara Reservoir were analysed cytogenetically. AgNORs were detected in a pair of ST chromosomes, in the telomeric region of the long arm. Some individuals showed size heteromorphism of this region between homologous chromosomes. Treatment with CMA3 displayed GC-rich regions corresponding to the AgNOR pair, plus other fluorescent staining. In situ hybridization by fluorescence (FISH) with the 18S rDNA probe showed only one pair of stained chromosomes, confirming the heteromorphism observed with AgNO3 and CMA3 in some individuals. The 5S rDNA probe revealed telomeric staining on the long arm of a pair of chromosomes of the ST-A group, probably different from the NOR pair. Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish chromosome; AgNOR; In situ hibridization; Chromomycin A3; Heteromorphism. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000100017 Karyotypic description of the stingless bee Oxytrigona cf. flaveola (Hymenoptera, Apidae, Meliponina) of a colony from Tangará da Serra, Mato Grosso State, Brazil Genet. Mol. Biol. Krinski,Diones; Fernandes,Anderson; Rocha,Marla Piumbini; Pompolo,Silvia das Graças. The aim was to broaden knowledge on the cytogenetics of the subtribe Meliponina, by furnishing cytogenetic data as a contribution to the characterization of bees from the genus Oxytrigona. Individuals of the species Oxytrigona cf. flaveola, members of a colony from Tangará da Serra, Mato Grosso State, Brazil, were studied. The chromosome number was 2n = 34, distributed among four chromosomal morphologies, with the karyotype formula 8m+8sm+16st+2t. Size heteromorphism in the first metacentric pair, subsequently confirmed by sequential staining with fluorochrome (DA/DAPI/CMA3), was apparent in all the examined individuals The nucleolar organizing regions (NORs) are possibly located in this metacentric chromosome pair. These data will contribute towards a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosome; Heteromorphism; Fluorochrome. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300020 Registros recuperados: 2 Primeira ... 1 ... Última

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