Chromosome Numbers and Evolution in the Genus Colchicum

Feinbrun, Naomi

doi:10.2307/2406028

Cited by 11 publications

(7 citation statements)

References 1 publication

(2 reference statements)

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“…Chromosome numbers are very important in understanding Colchicum evolution (Feinbrun 1958;Persson 1993). The centre of genera diversification is located in the Middle East where several very rare diploid endemics exist [x=(12), 9,8, 7], some tetraploids [2n=36-38, (44-48)] and numerous hexaploids [2n=(50), 52-54].…”

Section: Introductionmentioning

confidence: 99%

“…Despite the importance of knowing the chromosome number, chromosome counts remain extremely difficult to determine in this occidental group because the chromosomes are sticky, numerous, highly heterogeneous in length and centromeric with respect to position, and the longer ones break easily (Levan 1940;Levan and Steinegger 1947;D'Amato 1955;Fernandes and França 1977). In the Middle East, karyotypes seem generally to be more homogeneous ' (Feinbrun 1958). Despite these problems, each species has a stable polyploidy level, and variations among populations or individual plants appear to be quite limited (Perrenoud and Favarger 1971;Fernandes and França 1977).…”

Section: Introductionmentioning

confidence: 99%

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

Fridlender¹,

Brown

Verlaque³

et al. 2002

Plant Cell Reports

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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 9 bp (2 n=4 x=36); C. alpinum DC., 2C=8.06±0.24 pg, equivalent to 7.8×10 9 bp (2 n=6 x=56); C. lusitanum Brot., 2C=10.7±0.67 pg, equivalent to 10.3×10 9 bp (2 n= approx. 10 x=90–92 and 94–96); C. multiflorum Brot., 2C=16.5±0.69 pg, equivalent to 15.9×10 9 bp, (2 n= approx. 16 x=140–148); C. corsicum Baker, 2C=21.3±0.99 pg, equivalent to 20.6×10 9 bp (2 n=22 x= 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 2=0.99, P<0.001). This relationship is consistent with most previous results, with our new chromosome number count for C. corsicum and with our correction of published erroneous counts for C. lusitanum (2 n=102–108). The Calabrian population appeared to be distinct from all of the other plants of the C. alpinum group. Reproducible and accurate, cytometry appears to be a particularly appropriate method for studying this polyploid genus in Western Europe, taking into account that chromosome numbers are difficult to enumerate. It can guide future taxonomic research because it reveals similarities or differences between taxa within this difficult complex

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Fridlender¹,

Brown

Verlaque³

et al. 2002

Plant Cell Reports

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“…(Persson, 1993a). The fifth species, the Palestinian C. hiemsolymitanum Feinbrun, is an autumnflowering plant with hysteranthous leaves (Feinbrun, 1958;Persson, 1993a).…”

Section: Methodsmentioning

confidence: 99%

A new soboliferous species of Colchicum in Turkey

Persson

2001

Botanical Journal of the Linnean Society

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“…Four of these are like C. leptanthum, springflowering species with synanthous leaves, viz. The fifth species, the Palestinian C. hiemsolymitanum Feinbrun, is an autumnflowering plant with hysteranthous leaves (Feinbrun, 1958;Persson, 1993a). (Persson, 1993a).…”

Section: Methodsmentioning

confidence: 99%