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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F13%3A10192186%21RIV14-GA0-11310___
rdf:type
skos:Concept n15:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1007/s10530-012-0370-2
dcterms:description
Due to its instantaneous effects on the genetics, phenotype, physiology and/or ecology of a plant, polyploidy can play an important role in facilitating plant invasions. Understanding the determinants of invasiveness in species with multiple ploidy levels requires a detailed knowledge of ploidy composition in native versus invaded ranges. Using DNA flow cytometry, we performed representative ploidy screening (277 localities, 333 individuals) across the native range of Oxalis pes-caprae and compared the data with those from invaded ranges. Both ranges showed striking differences in ploidy composition: whereas tetra- and especially pentaploids successfully colonized secondary areas, only di-, (very rare) tri- and tetraploids (dominant) were found in the native range of this species. Disregarding the diploid var. sericea, diploids and tetraploids of the nominate variety showed largely parapatric distribution in the native range, with a zone of overlap in the Northern Cape Province. Our results challenge the conventional scenario of the introduction of pentaploid individuals from the Greater Cape Floristic Region. The origin of the pentaploid cytotype is unclear and molecular tools applied in a large scale screening are needed to understand the invasion history of the species. Due to its instantaneous effects on the genetics, phenotype, physiology and/or ecology of a plant, polyploidy can play an important role in facilitating plant invasions. Understanding the determinants of invasiveness in species with multiple ploidy levels requires a detailed knowledge of ploidy composition in native versus invaded ranges. Using DNA flow cytometry, we performed representative ploidy screening (277 localities, 333 individuals) across the native range of Oxalis pes-caprae and compared the data with those from invaded ranges. Both ranges showed striking differences in ploidy composition: whereas tetra- and especially pentaploids successfully colonized secondary areas, only di-, (very rare) tri- and tetraploids (dominant) were found in the native range of this species. Disregarding the diploid var. sericea, diploids and tetraploids of the nominate variety showed largely parapatric distribution in the native range, with a zone of overlap in the Northern Cape Province. Our results challenge the conventional scenario of the introduction of pentaploid individuals from the Greater Cape Floristic Region. The origin of the pentaploid cytotype is unclear and molecular tools applied in a large scale screening are needed to understand the invasion history of the species.
dcterms:title
Cytogeography of Oxalis pes-caprae in its native range: where are the pentaploids? Cytogeography of Oxalis pes-caprae in its native range: where are the pentaploids?
skos:prefLabel
Cytogeography of Oxalis pes-caprae in its native range: where are the pentaploids? Cytogeography of Oxalis pes-caprae in its native range: where are the pentaploids?
skos:notation
RIV/00216208:11310/13:10192186!RIV14-GA0-11310___
n15:predkladatel
n16:orjk%3A11310
n4:aktivita
n20:I n20:S n20:P
n4:aktivity
I, P(GAP506/10/0643), S
n4:cisloPeriodika
6
n4:dodaniDat
n5:2014
n4:domaciTvurceVysledku
n7:5164710 n7:3399060
n4:druhVysledku
n19:J
n4:duvernostUdaju
n9:S
n4:entitaPredkladatele
n12:predkladatel
n4:idSjednocenehoVysledku
67664
n4:idVysledku
RIV/00216208:11310/13:10192186
n4:jazykVysledku
n17:eng
n4:klicovaSlova
Polyploidy; Oxalis pes-caprae; Greater Cape Floristic Region; Flow cytometry; Cytogeography
n4:klicoveSlovo
n13:Flow%20cytometry n13:Cytogeography n13:Polyploidy n13:Greater%20Cape%20Floristic%20Region n13:Oxalis%20pes-caprae
n4:kodStatuVydavatele
NL - Nizozemsko
n4:kontrolniKodProRIV
[F9E9DA1DCEFD]
n4:nazevZdroje
Biological Invasions
n4:obor
n18:EF
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
5
n4:projekt
n11:GAP506%2F10%2F0643
n4:rokUplatneniVysledku
n5:2013
n4:svazekPeriodika
15
n4:tvurceVysledku
Suda, Jan Oberlander, Kenneth C. Dreyer, Leanne L. Krejčíková, Jana Sudová, Radka
n4:wos
000318811400002
s:issn
1387-3547
s:numberOfPages
6
n21:doi
10.1007/s10530-012-0370-2
n8:organizacniJednotka
11310