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@article{1477396,
author = {Pysek, P. and Skalova, H. and Cuda, J. and Guo, W.Y. and Suda, J. and Dolezal, J. and Kauzal, O. and Lambertini, C. and Lucanova, M. and Mandáková, Terezie and Moravcova, L. and Pyskova, K. and Brix, H. and Meyerson, L.A.},
article_location = {HOBOKEN, NJ USA},
article_number = {1},
doi = {http://dx.doi.org/10.1002/ecy.2068},
keywords = {biogeography; climate; common reed; plant invasion; source populations; species traits},
language = {eng},
issn = {0012-9658},
journal = {Ecology},
title = {Small genome separates native and invasive populations in an ecologically important cosmopolitan grass},
url = {https://pure.au.dk/ws/files/121217447/Py_ek_et_al_2018_Ecology.pdf},
volume = {99},
year = {2018}
}
TY - JOUR
ID - 1477396
AU - Pysek, P. - Skalova, H. - Cuda, J. - Guo, W.Y. - Suda, J. - Dolezal, J. - Kauzal, O. - Lambertini, C. - Lucanova, M. - Mandáková, Terezie - Moravcova, L. - Pyskova, K. - Brix, H. - Meyerson, L.A.
PY - 2018
TI - Small genome separates native and invasive populations in an ecologically important cosmopolitan grass
JF - Ecology
VL - 99
IS - 1
SP - 79-90
EP - 79-90
PB - WILEY
SN - 00129658
KW - biogeography
KW - climate
KW - common reed
KW - plant invasion
KW - source populations
KW - species traits
UR - https://pure.au.dk/ws/files/121217447/Py_ek_et_al_2018_Ecology.pdf
N2 - The literature suggests that small genomes promote invasion in plants, but little is known about the interaction of genome size with other traits or about the role of genome size during different phases of the invasion process. By intercontinental comparison of native and invasive populations of the common reed Phragmites australis, we revealed a distinct relationship between genome size and invasiveness at the intraspecific level. Monoploid genome size was the only significant variable that clearly separated the North American native plants from those of European origin. The mean Cx value (the amount of DNA in one chromosome set) for source European native populations was 0.490 +/- 0.007 (mean +/- SD), for North American invasive 0.506 +/- 0.020, and for North American native 0.543 +/- 0.021. Relative to native populations, the European populations that successfully invaded North America had a smaller genome that was associated with plant traits favoring invasiveness (long rhizomes, early emerging abundant shoots, resistance to aphid attack, and low C:N ratio). The knowledge that invasive populations within species can be identified based on genome size can be applied to screen potentially invasive populations of Phragmites in other parts of the world where they could grow in mixed stands with native plants, as well as to other plant species with intraspecific variation in invasion potential. Moreover, as small genomes are better equipped to respond to extreme environmental conditions such as drought, the mechanism reported here may represent an emerging driver for future invasions and range expansions.
ER -
PYSEK, P., H. SKALOVA, J. CUDA, W.Y. GUO, J. SUDA, J. DOLEZAL, O. KAUZAL, C. LAMBERTINI, M. LUCANOVA, Terezie MANDÁKOVÁ, L. MORAVCOVA, K. PYSKOVA, H. BRIX a L.A. MEYERSON. Small genome separates native and invasive populations in an ecologically important cosmopolitan grass. \textit{Ecology}. HOBOKEN, NJ USA: WILEY, roč.~99, č.~1, s.~79-90. ISSN~0012-9658. doi:10.1002/ecy.2068. 2018.
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