Publication details

 

Genome size in Cyperaceae

Basic information
Original title:Genome size in Cyperaceae
Authors:Petr Bureš, František Zedek, Petr Šmarda, Olga Rotreklová, Ivana Hralová
Further information
Citation:BUREŠ, Petr, František ZEDEK, Petr ŠMARDA, Olga ROTREKLOVÁ a Ivana HRALOVÁ. Genome size in Cyperaceae. In The Comparative Biology of the Monocotyledons. První. Copenhagen: University of Copenhagen, 2008. s. 13-14, 2 s. ISBN 978-87--8777203-7.Export BibTeX
@inproceedings{782853,
author = {Bureš, Petr and Zedek, František and Šmarda, Petr and Rotreklová, Olga and Hralová, Ivana},
address = {Copenhagen},
booktitle = {The Comparative Biology of the Monocotyledons},
edition = {První},
keywords = {base composition; Carex; chromosome size; Eleocharis; polyploidy},
howpublished = {tištěná verze "print"},
language = {eng},
location = {Copenhagen},
isbn = {978-87--8777203-7},
pages = {13-14},
publisher = {University of Copenhagen},
title = {Genome size in Cyperaceae},
year = {2008}
}
Original language:English
Field:Botany
Type:Article in Proceedings
Keywords:base composition; Carex; chromosome size; Eleocharis; polyploidy

In Cyperaceae the detection of polyploidy is complicated by chromosomal fusion and fragmentation (symploidy and agmatoploidy) due to holokinetic nature of chromosomes. Studying karyotype and genome size in Cyperaceae, we combined molecular methods, flow cytometry, and chromosome counts in Carex and Eleocharis. These genera are contrasting in number of species, evolutionary centres, ecological diversification, but mainly in genome size and chromosome size variation, which is in Eleocharis one of the largest known among angiosperm genera (from 8.1 to 296 Mbp). We analysed the following genomic parameters: genome size, chromosome number, chromosome size, AT/GC composition, Ty3-gypsy and Ty1-copia retrotransposons diversity and amount. Evolutionary dynamics of these species-specific parameters mapped onto phylogeny based on molecular sequence markers (ITS, trnL-F) was used for the evaluation of the role of: polyploidy, agmatoploidy, symploidy, and retrotransposon amplification or removal.

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