Chromosome identification in the Andean common bean accession G19833 (Phaseolus vulgaris L., Fabaceae)

Genetics and Molecular Biology

Sarah Altrock¹  Artur Fonsêca¹  Andrea Pedrosa-harand¹ 

[1] ,Universidade Federal de Pernambuco Departamento de Botânica Laboratório de Citogenética VegetalRecife PE ,Brazil

关键词: common bean;    repetitive DNA;    chromosome marker;    cytogenetic map;    comparative map;    intraspecific variation;   

DOI  :  10.1590/S1415-47572011005000029

来源: SciELO

【 摘 要 】

Characterization of all chromosomes of the Andean G19833 bean genotype was carried out by fluorescent in situ hybridization. Eleven single-copy genomic sequences, one for each chromosome, two BACs containing subtelomeric and pericentromeric repeats and the 5S and 45S ribosomal DNA (rDNA) were used as probes. Comparison to the Mesoamerican accession BAT93 showed little divergence, except for additional 45S rDNA sites in four chromosome pairs. Altogether, the results indicated a relative karyotypic stability during the evolution of the Andean and Mesoamerican gene pools of P. vulgaris.

【 授权许可】

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