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Ploidy level versus DNA ploidy level: an appeal for consistent terminology

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Abstract:

There is an ever-increasing amount of cytogenetic data in plant sciences obtained by cytometric techniques, particularly flow cytometry. However, as these methods determine nuclear DNA amount irrespective of the number of chromosomes, a discrepancy between cytometric and karyological data may occur. To avoid potential bias, we appeal for consistency, distinguishing between the terms "ploidy / aneuploidy" referring to chromosome numbers and "DNA ploidy / DNA aneuploidy" to nuclear DNA content.

Keywords: CHROMOSOME NUMBERS; CYTOMETRY; CYTOTYPE; DNA PLOIDY; GENOME SIZE; NUCLEAR DNA CONTENT

Document Type: Research Article

Affiliations: 1: Department of Botany, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic; Institute of Botany, Academy of Sciences of the Czech Republic, Průhonice 1, CZ-252 43, Czech Republic 2: Institute of Botany, Academy of Sciences of the Czech Republic, Průhonice 1, CZ-252 43, Czech Republic 3: Institute of Botany, Academy of Sciences of the Czech Republic, Průhonice 1, CZ-252 43, Czech Republic; Department of Botany, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic

Publication date: 2006-05-01

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