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Statements

Subject Item
n2:RIV%2F60076658%3A12310%2F12%3A43883542%21RIV13-MSM-12310___
rdf:type
n3:Vysledek skos:Concept
dcterms:description
Polyploidization is one of the leading forces in the evolution of land plants, providing opportunities for instant speciation and rapid gain of evolutionary novelties. Highly selective conditions of serpentine environments act as an important evolutionary trigger that can be involved in various speciation processes. Whereas the significance of both edaphic speciation on serpentine and polyploidy is widely acknowledged in plant evolution, the links between polyploid evolution and serpentine differentiation have not yet been examined. To fill this gap, we investigated the evolutionary history of the perennial herb Knautia arvensis (Dipsacaceae), a diploid-tetraploid complex that exhibits an intriguing pattern of ecogeographic differentiation. Using plastid DNA sequencing and AFLP genotyping of 336 previously cytotyped individuals from 40 populations from central Europe, we unravelled the patterns of genetic variation among the cytotypes and the edaphic types. Diploids showed the highest levels of genetic differentiation, likely as a result of long term persistence of several lineages in ecologically distinct refugia and/or independent immigration. Recurrent polyploidization, recorded in one serpentine island, seems to have opened new possibilities for the local serpentine genotype. Unlike diploids, the serpentine tetraploids were able to escape from the serpentine refugium and spread further; this was also attributable to hybridization with the neighbouring non-serpentine tetraploid lineages. The spatiotemporal history of K. arvensis allows tracing the interplay of polyploid evolution and ecological divergence on serpentine, resulting in a complex evolutionary pattern. Isolated serpentine outcrops can act as evolutionary capacitors, preserving distinct karyological and genetic diversity. Polyploidization is one of the leading forces in the evolution of land plants, providing opportunities for instant speciation and rapid gain of evolutionary novelties. Highly selective conditions of serpentine environments act as an important evolutionary trigger that can be involved in various speciation processes. Whereas the significance of both edaphic speciation on serpentine and polyploidy is widely acknowledged in plant evolution, the links between polyploid evolution and serpentine differentiation have not yet been examined. To fill this gap, we investigated the evolutionary history of the perennial herb Knautia arvensis (Dipsacaceae), a diploid-tetraploid complex that exhibits an intriguing pattern of ecogeographic differentiation. Using plastid DNA sequencing and AFLP genotyping of 336 previously cytotyped individuals from 40 populations from central Europe, we unravelled the patterns of genetic variation among the cytotypes and the edaphic types. Diploids showed the highest levels of genetic differentiation, likely as a result of long term persistence of several lineages in ecologically distinct refugia and/or independent immigration. Recurrent polyploidization, recorded in one serpentine island, seems to have opened new possibilities for the local serpentine genotype. Unlike diploids, the serpentine tetraploids were able to escape from the serpentine refugium and spread further; this was also attributable to hybridization with the neighbouring non-serpentine tetraploid lineages. The spatiotemporal history of K. arvensis allows tracing the interplay of polyploid evolution and ecological divergence on serpentine, resulting in a complex evolutionary pattern. Isolated serpentine outcrops can act as evolutionary capacitors, preserving distinct karyological and genetic diversity.
dcterms:title
Bringing Together Evolution on Serpentine and Polyploidy: Spatiotemporal History of the Diploid-Tetraploid Complex of Knautia arvensis (Dipsacaceae) Bringing Together Evolution on Serpentine and Polyploidy: Spatiotemporal History of the Diploid-Tetraploid Complex of Knautia arvensis (Dipsacaceae)
skos:prefLabel
Bringing Together Evolution on Serpentine and Polyploidy: Spatiotemporal History of the Diploid-Tetraploid Complex of Knautia arvensis (Dipsacaceae) Bringing Together Evolution on Serpentine and Polyploidy: Spatiotemporal History of the Diploid-Tetraploid Complex of Knautia arvensis (Dipsacaceae)
skos:notation
RIV/60076658:12310/12:43883542!RIV13-MSM-12310___
n3:predkladatel
n14:orjk%3A12310
n4:aktivita
n12:S n12:P n12:I n12:Z
n4:aktivity
I, P(KJB600050812), P(KJB601110627), S, Z(AV0Z6005908), Z(MSM0021620828), Z(MSM6007665801)
n4:cisloPeriodika
7
n4:dodaniDat
n11:2013
n4:domaciTvurceVysledku
n8:1180835
n4:druhVysledku
n16:J
n4:duvernostUdaju
n20:S
n4:entitaPredkladatele
n21:predkladatel
n4:idSjednocenehoVysledku
125536
n4:idVysledku
RIV/60076658:12310/12:43883542
n4:jazykVysledku
n6:eng
n4:klicovaSlova
CRUCIFERAE; CARYOPHYLLACEAE; ASTERACEAE; GENE FLOW; EUROPEAN ALPS; FLOW-CYTOMETRY; MULTIPLE ORIGINS; POPULATION-STRUCTURE; DACTYLIS-GLOMERATA L; MULTILOCUS GENOTYPE DATA
n4:klicoveSlovo
n7:FLOW-CYTOMETRY n7:EUROPEAN%20ALPS n7:MULTILOCUS%20GENOTYPE%20DATA n7:ASTERACEAE n7:DACTYLIS-GLOMERATA%20L n7:CRUCIFERAE n7:MULTIPLE%20ORIGINS n7:POPULATION-STRUCTURE n7:GENE%20FLOW n7:CARYOPHYLLACEAE
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[58CE40AF0D81]
n4:nazevZdroje
PLOS ONE
n4:obor
n17:EF
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
7
n4:projekt
n19:KJB600050812 n19:KJB601110627
n4:rokUplatneniVysledku
n11:2012
n4:svazekPeriodika
7
n4:tvurceVysledku
Kolar, Filip Schoenswetter, Peter Suda, Jan Duskova, Eva Travnicek, Pavel Fer, Tomas Štech, Milan
n4:wos
000306436300020
n4:zamer
n13:MSM0021620828 n13:AV0Z6005908 n13:MSM6007665801
s:issn
1932-6203
s:numberOfPages
13
n10:doi
10.1371/journal.pone.0039988
n15:organizacniJednotka
12310