Evolution of genome size in Carex (Cyperaceae) in relation to chromosome number and genomic base composition | Zendy

Ivana Lipnerová | Zendy; Petr Bureš | Zendy; Lucie Horová | Zendy; Petr Šmarda | Zendy

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Evolution of genome size in Carex (Cyperaceae) in relation to chromosome number and genomic base composition

Author(s) -

Ivana Lipnerová,

Petr Bureš,

Lucie Horová,

Petr Šmarda

Publication year - 2012

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcs239

Subject(s) - biology , polyploid , genome size , carex , genome , ploidy , chromosome , clade , phylogenetic tree , evolutionary biology , karyotype , cyperaceae , genetics , botany , gene , poaceae

The genus Carex exhibits karyological peculiarities related to holocentrism, specifically extremely broad and almost continual variation in chromosome number. However, the effect of these peculiarities on the evolution of the genome (genome size, base composition) remains unknown. While in monocentrics, determining the arithmetic relationship between the chromosome numbers of related species is usually sufficient for the detection of particular modes of karyotype evolution (i.e. polyploidy and dysploidy), in holocentrics where chromosomal fission and fusion occur such detection requires knowledge of the DNA content.

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