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	Provedor de dados Genet. Mol. Biol. (1) Phyton (1) Autor Andrade,Gilda Vasconcellos (1) Bruschi,Daniel Pacheco (1) Busin,Carmen Sílvia (1) Carvalho,Klélia Aparecida de (1) Ficanha,Natália Cristine (1) Lima,Albertina Pimentel (1) Liu,DH (1) Recco-Pimentel,Shirlei Maria (1) Soares,Amanda (1) Sousa,Deborah Yasmim (1) Wang,QL (1) Yue,JY (1) Mais... Palavra-chave Nucleolar organizing region (2) Allium cepa var. agrogarum L (1) Autophagy (1) Bufonid toads (1) Cadmium (Cd) (1) Chromosomal evolution (1) Chromosome aberration (1) Nucleoli (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Ano 2019 (1) 2016 (1) País Argentina (1) Brazil (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Comparative cytogenetics of nine populations of the Rhinella genus (Anura, Bufonidae) with a highlight on their conservative karyotype Genet. Mol. Biol. Bruschi,Daniel Pacheco; Sousa,Deborah Yasmim; Soares,Amanda; Carvalho,Klélia Aparecida de; Busin,Carmen Sílvia; Ficanha,Natália Cristine; Lima,Albertina Pimentel; Andrade,Gilda Vasconcellos; Recco-Pimentel,Shirlei Maria. Abstract The genus Rhinella is one of the most diverse groups of bufonid toads, currently composed by 93 valid species and naturally distributed throughout different Neotropical ecoregions. Here, we analyze nine Brazilian populations of toads representing species of the Rhinella margaritifera and Rhinella marina groups. These new data include the first description of the R. hoogmoedi and R. proboscidae karyotypes, as well as other taxonomically unresolved forms. Chromosomal analysis of the populations revealed pronounced chromosomal uniformity (2n=22), including the diploid number and chromosomal morphology. Three different NOR-bearing chromosomes were identified: in the subterminal region of pair 10q in R. hoogmoedi, Rhinella sp. 1 and Rhinella sp. 2, in... Tipo: Info:eu-repo/semantics/other Palavras-chave: Bufonid toads; Nucleolar organizing region; Chromosomal evolution. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000300445 The uptake of cadmium by Allium cepa var. agrogarum L. and its effects on chromosome and nucleolar behavior in root tip cells Phyton Wang,QL; Liu,DH; Yue,JY. Allium cepa var. agrogarum L. seedlings are sensitive to Cd stress. We used fluorescence imaging to indicate that Cd2+ was localized in cytoplasm in the epidermis of the basal parts of root and vascular tissues after Cd treatment. The nucleoli and the cell walls were the first storage sites of Cd2+. When Cd exposure was prolonged, severe irregularly-shaped nuclei were induced. We used silver nitrate staining to analyze the effects of different concentrations (1-300 µM) of cadmium chloride on chromosome, nucleolus and nucleolus organizer regions (NORs) in root tip cells. Cd2+ induced c-mitosis, chromosome bridges, chromosome stickiness and micronuclei. More than 100 µM Cd2+ could induce nucleolar material extruded from the nucleus into the cytoplasm. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cadmium (Cd); Allium cepa var. agrogarum L; Chromosome aberration; Nucleoli; Nucleolar organizing region; Autophagy. Ano: 2016 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000100021 Registros recuperados: 2 Primeira ... 1 ... Última

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