Cytometric determination of genome size in Colchicum species (Liliales, Colchicaceae) of the western Mediterranean area

Genome size has been studied for the first time in the Colchicum genus. Values obtained by flow cytometry were quite stable and specific to each taxon: C. autumnale L., 2C=5.89±0.22 pg, equivalent to 5.7×10^sup 9 ^bp (2n=4x=36); C. alpinum DC., 2C=8.06±0.24 pg, equivalent to 7.8×10^sup 9 ^bp (2n=6x=...

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Bibliographic Details
Published in:Plant cell reports 2002-11, Vol.21 (4), p.347-352
Main Authors: FRIDLENDER, A, BROWN, S, VERLAQUE, R, CROSNIER, M. T, PECH, N
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Cytogenetics
Fundamental and applied biological sciences. Psychology
Generalities. Genetics. Plant material
Genetics and breeding of economic plants
Genomes
Hybridization
Life Sciences
Taxa
Vegetal Biology
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Summary:Genome size has been studied for the first time in the Colchicum genus. Values obtained by flow cytometry were quite stable and specific to each taxon: C. autumnale L., 2C=5.89±0.22 pg, equivalent to 5.7×10^sup 9 ^bp (2n=4x=36); C. alpinum DC., 2C=8.06±0.24 pg, equivalent to 7.8×10^sup 9 ^bp (2n=6x=56); C. lusitanum Brot., 2C=10.7±0.67 pg, equivalent to 10.3×10^sup 9 ^bp (2n= approx. 10x=90-92 and 94-96); C. multiflorum Brot., 2C=16.5±0.69 pg, equivalent to 15.9×10^sup 9 ^bp, (2n= approx. 16x=140-148); C. corsicum Baker, 2C=21.3±0.99 pg, equivalent to 20.6×10^sup 9 ^bp (2n=22x= approx. 198±2). These values are well below those published for Liliaceae stricto sensu. In Colchicum species from the western Mediterranean area, genome size was highly correlated with ploidy level (R^sup 2^=0.99, P
ISSN:0721-7714
1432-203X
DOI:10.1007/s00299-002-0522-4