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	Provedor de dados Electron. J. Biotechnol. (1) Autor Hopp,Esteban (1) Tosto,Daniela (1) Palavra-chave Andean crops (1) Oca (1) Oxalis (1) RDNA (1) RFLPs (1) Tipo do documento Journal article (1) Ano 2008 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Characterization of the nuclear ribosomal DNA unit in Oxalis tuberosa (Oxalidacea) and related species Electron. J. Biotechnol. Tosto,Daniela; Hopp,Esteban. Oxalis tuberosa is an octoploid Andean tuber crop called "oca" that belongs to the worldwide distributed genus Oxalis. The genus is very heterogeneous and its systematics is still problematic. It has been proposed that O. tuberosa evolved by polyploidization of a still not defined ancestor that belongs to an alliance of species sharing the same basic chromosome number (x = 8). Nuclear rDNA units of O. tuberosa and a selected group of four related diploid species were characterised by RFLP using different restriction endonucleases and southern hybridization probes to produce a restriction map for EcoRI and BamHI. The major rDNA unit length in O. tuberosa was estimated at 10.7 kbp. As expected, restriction site variation was observed mainly in the intergenic... Tipo: Journal article Palavras-chave: Andean crops; Oca; Oxalis; RDNA; RFLPs. Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000300002 Registros recuperados: 1 Primeira ... 1 ... Última

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