Abstract
The DNA methylation pattern ofVicia faba metaphase chromosomes was examined with a specific monoclonal antibody. 5-methylcytosine (5-mC) residues are present in different chromosomal sites, and are particularly abundant in telomeric and/or subtelomeric regions and in certain intercalary bands. Chromosomal localization of methylated regions enables a better knowledge of the lengthwise differentiation of this chromosome complement. Our results also indicate that there may be differences in monoclonal antibody binding between corresponding regions of homologous chromosomes inV. faba. This behaviour is detectable in specific regions with different frequencies. The data support results previously obtained forAllium cepa metaphase chromosomes using the same monoclonal antibody.
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accepted for publication by J. S. (Pat) Heslop-Harrison
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Frediani, M., Giraldi, E. & Castiglione, M.R. Distribution of 5-methylcytosine-rich regions in the metaphase chromosomes ofVicia faba . Chromosome Res 4, 141–146 (1996). https://doi.org/10.1007/BF02259707
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DOI: https://doi.org/10.1007/BF02259707