Detailed Information on Publication Record
2013
Effect of phosphorus availability on the selection of species with different ploidy levels and genome sizes in a long-term grassland fertilization experiment
ŠMARDA, Petr, Michal HEJCMAN, Alexandra BŘEZINOVÁ, Lucie HOROVÁ, Helena STEIGEROVÁ et. al.Basic information
Original name
Effect of phosphorus availability on the selection of species with different ploidy levels and genome sizes in a long-term grassland fertilization experiment
Authors
ŠMARDA, Petr (203 Czech Republic, guarantor, belonging to the institution), Michal HEJCMAN (203 Czech Republic), Alexandra BŘEZINOVÁ (203 Czech Republic, belonging to the institution), Lucie HOROVÁ (203 Czech Republic, belonging to the institution), Helena STEIGEROVÁ (203 Czech Republic, belonging to the institution), František ZEDEK (203 Czech Republic, belonging to the institution), Petr BUREŠ (203 Czech Republic, belonging to the institution), Pavla HEJCMANOVÁ (203 Czech Republic) and Juergen SCHELLBERG (276 Germany)
Edition
New Phytologist, 2013, 1469-8137
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 6.545
RIV identification code
RIV/00216224:14310/13:00067001
Organization unit
Faculty of Science
UT WoS
000325555400031
Keywords in English
DNA content; flow cytometry; nutrient limitation; phosphorus; plant primary CSR strategies; polyploid ecology; polyploidy; Rengen Grassland Experiment
Tags
Tags
International impact, Reviewed
Změněno: 13/3/2018 10:37, prof. RNDr. Petr Bureš, Ph.D.
Abstract
V originále
Polyploidy and increased genome size are hypothesized to increase organismal nutrient demands, namely of phosphorus (P), which is an essential and abundant component of nucleic acids. Therefore, polyploids and plants with larger genomes are expected to be selectively disadvantaged in P-limited environments. However, this hypothesis has yet to be experimentally tested. We measured the somatic DNA content and ploidy level in 74 vascular plant species in a long-term fertilization experiment. The differences between the fertilizer treatments regarding the DNA content and ploidy level of the established species were tested using phylogeny-based statistics. The percentage and biomass of polyploid species clearly increased with soil P in particular fertilizer treatments, and a similar but weaker trend was observed for the DNA content. These increases were associated with the dominance of competitive life strategy (particularly advantageous in the P-treated plots) in polyploids and the enhanced competitive ability of dominant polyploid grasses at high soil P concentrations, indicating their increased P limitation. Our results verify the hypothesized effect of P availability on the selection of polyploids and plants with increased genome sizes, although the relative contribution of increased P demands vs increased competitiveness as causes of the observed pattern requires further evaluation.
Links
GAP505/11/0881, research and development project |
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