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@article{1169907,
author = {Šmarda, Petr and Hejcman, Michal and Březinová, Alexandra and Horová, Lucie and Steigerová, Helena and Zedek, František and Bureš, Petr and Hejcmanová, Pavla and Schellberg, Juergen},
article_number = {3},
doi = {http://dx.doi.org/10.1111/nph.12399},
keywords = {DNA content; flow cytometry; nutrient limitation; phosphorus; plant primary CSR strategies; polyploid ecology; polyploidy; Rengen Grassland Experiment},
language = {eng},
issn = {1469-8137},
journal = {New Phytologist},
title = {Effect of phosphorus availability on the selection of species with different ploidy levels and genome sizes in a long-term grassland fertilization experiment},
url = {http://onlinelibrary.wiley.com/doi/10.1111/nph.12399/abstract},
volume = {200},
year = {2013}
}
TY - JOUR
ID - 1169907
AU - Šmarda, Petr - Hejcman, Michal - Březinová, Alexandra - Horová, Lucie - Steigerová, Helena - Zedek, František - Bureš, Petr - Hejcmanová, Pavla - Schellberg, Juergen
PY - 2013
TI - Effect of phosphorus availability on the selection of species with different ploidy levels and genome sizes in a long-term grassland fertilization experiment
JF - New Phytologist
VL - 200
IS - 3
SP - 911-921
EP - 911-921
SN - 14698137
KW - DNA content
KW - flow cytometry
KW - nutrient limitation
KW - phosphorus
KW - plant primary CSR strategies
KW - polyploid ecology
KW - polyploidy
KW - Rengen Grassland Experiment
UR - http://onlinelibrary.wiley.com/doi/10.1111/nph.12399/abstract
L2 - http://onlinelibrary.wiley.com/doi/10.1111/nph.12399/abstract
N2 - 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.
ER -
ŠMARDA, Petr, Michal HEJCMAN, Alexandra BŘEZINOVÁ, Lucie HOROVÁ, Helena STEIGEROVÁ, František ZEDEK, Petr BUREŠ, Pavla HEJCMANOVÁ a Juergen SCHELLBERG. Effect of phosphorus availability on the selection of species with different ploidy levels and genome sizes in a long-term grassland fertilization experiment. \textit{New Phytologist}. roč.~200, č.~3, s.~911-921. ISSN~1469-8137. doi:10.1111/nph.12399. 2013.
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