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	Provedor de dados Genet. Mol. Biol. (2) Autor Collares-Pereira,Maria João (1) Pellegrino,Katia Cristina Machado (1) Proença,Sónia J. R. (1) Rodrigues,Miguel Trefaut (1) Serrano,Artur R. M. (1) Yonenaga-Yassuda,Yatiyo (1) Mais... Palavra-chave Multiple sex chromosomes (2) Banding patterns (1) Chromosome evolution (1) Cicindela (1) Gymnophthalmidae (1) Karyotypes (1) RDNA localization (1) Tiger beetles (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2005 (1) 2004 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Cytogenetic variability in three species of the genus Cicindela (s.l.) (Coleoptera, Cicindelidae): karyotypes and localization of 18S rDNA genes Genet. Mol. Biol. Proença,Sónia J. R.; Collares-Pereira,Maria João; Serrano,Artur R. M.. Three tiger beetle species from the Cicindelini tribe were examined cytogenetically and found to have the following karyotypes: Cicindela argentata, 2n = 18 + X1X2Y/X1X1X2X 2; Cicindela aurulenta, 2n=18 + X1X2X3Y/X1X1X 2X2X3X3 and Cicindela suturalis, 2n = 18 + X1X2X3X4Y/X1X 1X2X2X3X3X4X 4. Fluorescence in situ hybridization (FISH) using a PCR-amplified 18S rDNA fragment as a probe showed the presence of ribosomal clusters in two autosomes in C. argentata, two autosomes and two heterosomes in C. aurulenta and in two heterosomes in C. suturalis (male configuration), revealing two new patterns of rDNA localization. Such results are representative of the cytogenetic variability observed in the species rich genus Cicindela (sensu lato) mainly as regards the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosome evolution; Cicindela; Multiple sex chromosomes; RDNA localization; Tiger beetles. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000400015 Chromosomal banding patterns in the eyelid-less microteiid lizard radiation: The X1X1X2X2:X1X2Y sex chromosome system in Calyptommatus and the karyotypes of Psilophthalmus and Tretioscincus (Squamata, Gymnophthalmidae) Genet. Mol. Biol. Yonenaga-Yassuda,Yatiyo; Rodrigues,Miguel Trefaut; Pellegrino,Katia Cristina Machado. Cytogenetic studies were performed on five closely related microteiid lizards (Gymnophthalmini), three Calyptommatus species and Psilophthalmus paeminosus from the sand dunes of the middle São Francisco river in the semiarid caatinga of the Brazilian state of Bahia and Tretioscincus oriximinensis from the Brazilian Amazon region. The diploid chromosome number in Calyptommatus species was 2n = 58 in females and 2n = 57 in males due to a multiple X1X1X2X2:X1X2Y sex chromosomes system, while P. paeminosus was 2n = 44 (20M+24m): where M = macrochromosomes and m = microchromosomes) and T. oriximinensis 2n = 42 (18M+24m). A single pair of silver staining nucleolar organizing regions (Ag-NORs) characterizes all five species. Incorporation of 5-BrdU... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gymnophthalmidae; Banding patterns; Karyotypes; Multiple sex chromosomes. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000500009 Registros recuperados: 2 Primeira ... 1 ... Última

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