Detailed Information on Publication Record
2005
Geographical pattern in genome size of Festuca pallens: phylogeographical interpretation of distribution range of polyploid complex
ŠMARDA, Petr and Petr BUREŠBasic information
Original name
Geographical pattern in genome size of Festuca pallens: phylogeographical interpretation of distribution range of polyploid complex
Name in Czech
Geografický pattern ve velikosti genomu Festuca pallens: fylogeografická interpretace areálu polyploidního komplexu
Authors
ŠMARDA, Petr (203 Czech Republic, guarantor) and Petr BUREŠ (203 Czech Republic)
Edition
Vienna, XVII. International Botanical Congress - Abstracts, p. 472-472, 1 pp. 2005
Publisher
IBC Organizing Committee
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Austria
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/00216224:14310/05:00013866
Organization unit
Faculty of Science
Keywords in English
DNA content; Poaceae
Tags
Změněno: 16/8/2005 18:21, prof. RNDr. Petr Bureš, Ph.D.
V originále
Considerable genome size variability in both ploidy levels and at various spatial scales was detected in Festuca pallens Host using DAPI stained flow-cytometry. Witnin- and among related sites, DNA content was relatively homogenous. However, mean differences up to 5.9 % between nearby localities or up to 11.6 % within the populations were rarely detected. Within the whole distribution area, maximum differences 15.9 % (in diploids) and 14.0 % (in tetraploids) were observed. In both ploidy levels, genome size was correlated with geographical coordinates, with the largest genomes situated in the southeastern parts. Mutual geographic relation between DNA content of diploids and tetraploids was confirmed. Tetraploids have in general lower DNA content than expected by doubling of their diploid progenitors. The main differences in DNA content of tetraploids were attributed with affiliation to 3 different, taxonomically unevaluated types. Affinity of larger genomes to different types of glacial vegetation (steppes rather than periglacial tundra, together with relation to relict habitats in diploids, give reasons for phylogeographic interpretations.
In Czech
Considerable genome size variability in both ploidy levels and at various spatial scales was detected in Festuca pallens Host using DAPI stained flow-cytometry. Witnin- and among related sites, DNA content was relatively homogenous. However, mean differences up to 5.9 % between nearby localities or up to 11.6 % within the populations were rarely detected. Within the whole distribution area, maximum differences 15.9 % (in diploids) and 14.0 % (in tetraploids) were observed. In both ploidy levels, genome size was correlated with geographical coordinates, with the largest genomes situated in the southeastern parts. Mutual geographic relation between DNA content of diploids and tetraploids was confirmed. Tetraploids have in general lower DNA content than expected by doubling of their diploid progenitors. The main differences in DNA content of tetraploids were attributed with affiliation to 3 different, taxonomically unevaluated types. Affinity of larger genomes to different types of glacial vegetation (steppes rather than periglacial tundra, together with relation to relict habitats in diploids, give reasons for phylogeographic interpretations.
Links
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