GC content, genome size and chromosome size evolution in
grasses and other monocots

a 2008

GC content, genome size and chromosome size evolution in grasses and other monocots

ŠMARDA, Petr, Petr BUREŠ and Lucie HOROVÁ

Basic information

Original name

GC content, genome size and chromosome size evolution in grasses and other monocots

Name in Czech

Evoluce GC obsahu, velikosti genomu a chromosomů u trav a ostatních jednoděložných

Authors

ŠMARDA, Petr (203 Czech Republic, guarantor, belonging to the institution), Petr BUREŠ (203 Czech Republic, belonging to the institution) and Lucie HOROVÁ (203 Czech Republic, belonging to the institution)

Edition

The Comparative Biology of the Monocotyledons, 2008

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10600 1.6 Biological sciences

Country of publisher

Denmark

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/08:00024945

Organization unit

Faculty of Science

ISBN

978-87-87772-03-7

Keywords in English

base composition; Festuca; Poaceae; polyploidy

Abstract

ORIG CZ

V originále

Compared to other angiosperms, grass genomes (Poaceae) highly vary in base composition and have considerably higher GC (guanine + cytosine) content. The base composition varies generally with the content of various genome components, and with direction of mutational pressure. Both processes may relate to over 60-fold differences in genome and chromosome sizes found in grasses, and to evolutionary success of grasses in various extreme environments. Here we discuss evolutionary consequences of genome size, chromosome size and GC content in Eurasian species of Festuca genus, across subfamilies Pooideae, Bambusoideae and Oryzoideae, and among various monocots families. We show that in addition to conventional genome size data the GC content may represent another usefull character in taxa delimitation and in understanding the long-term processes of genome evolution.

In Czech

Compared to other angiosperms, grass genomes (Poaceae) highly vary in base composition and have considerably higher GC (guanine + cytosine) content. The base composition varies generally with the content of various genome components, and with direction of mutational pressure. Both processes may relate to over 60-fold differences in genome and chromosome sizes found in grasses, and to evolutionary success of grasses in various extreme environments. Here we discuss evolutionary consequences of genome size, chromosome size and GC content in Eurasian species of Festuca genus, across subfamilies Pooideae, Bambusoideae and Oryzoideae, and among various monocots families. We show that in addition to conventional genome size data the GC content may represent another usefull character in taxa delimitation and in understanding the long-term processes of genome evolution.

Links

GP206/08/P222, research and development project

Name: Evoluce GC obsahu a genomu trav

Investor: Czech Science Foundation, GC content and genome evolution of grasses

LC06073, research and development project

Name: Centrum pro výzkum biodiverzity

Investor: Ministry of Education, Youth and Sports of the CR, Biodiversity Research Center

MSM0021622416, plan (intention)

Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time

Detailed Information on Publication Record