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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F12%3A33140804%21RIV13-MSM-15310___
rdf:type
skos:Concept n16:Vysledek
rdfs:seeAlso
http://link.springer.com/article/10.1007%2Fs00497-012-0200-9
dcterms:description
Rubus subgen. Rubus includes common European species with highly complicated taxonomy, ongoing hybridisation and facultative apomixis. Out of approximately 750 species recognised in Europe, only 3 diploid sexual species are known, along with numerous apomictic brambles that are highly connected to polyploidy. One exception of a tetraploid taxon is R. ser. Glandulosi, which is known for prevalent sexuality. This taxon highly hybridises with tetraploid members of R. ser. Discolores and leads to the origin of many hybridogenous populations and individuals. In this study, we verify reproduction modes in different diploid, triploid and tetraploid species of subgen. Rubus, with focus on taxa putatively involved in such hybridisation by applying flow cytometric seed screen analysis. We found 100 % sexuality of diploid species, whereas triploid species had obligate unreduced embryo sac development. In contrast, tetraploid plants had varying degrees of sexuality. Additionally, we discovered that R. bifrons has the ability to undergo a reproduction mode switch as a reaction to environmental conditions. These results provide insight into reproductive modes of European brambles and shed light on their reticulate evolution and speciation. Rubus subgen. Rubus includes common European species with highly complicated taxonomy, ongoing hybridisation and facultative apomixis. Out of approximately 750 species recognised in Europe, only 3 diploid sexual species are known, along with numerous apomictic brambles that are highly connected to polyploidy. One exception of a tetraploid taxon is R. ser. Glandulosi, which is known for prevalent sexuality. This taxon highly hybridises with tetraploid members of R. ser. Discolores and leads to the origin of many hybridogenous populations and individuals. In this study, we verify reproduction modes in different diploid, triploid and tetraploid species of subgen. Rubus, with focus on taxa putatively involved in such hybridisation by applying flow cytometric seed screen analysis. We found 100 % sexuality of diploid species, whereas triploid species had obligate unreduced embryo sac development. In contrast, tetraploid plants had varying degrees of sexuality. Additionally, we discovered that R. bifrons has the ability to undergo a reproduction mode switch as a reaction to environmental conditions. These results provide insight into reproductive modes of European brambles and shed light on their reticulate evolution and speciation.
dcterms:title
New insights to variability of reproduction modes in European populations of Rubus subgen. Rubus: how sexual are polyploid brambles? New insights to variability of reproduction modes in European populations of Rubus subgen. Rubus: how sexual are polyploid brambles?
skos:prefLabel
New insights to variability of reproduction modes in European populations of Rubus subgen. Rubus: how sexual are polyploid brambles? New insights to variability of reproduction modes in European populations of Rubus subgen. Rubus: how sexual are polyploid brambles?
skos:notation
RIV/61989592:15310/12:33140804!RIV13-MSM-15310___
n16:predkladatel
n17:orjk%3A15310
n4:aktivita
n19:I n19:S n19:P
n4:aktivity
I, P(GA206/07/0706), P(GA206/08/0890), S
n4:cisloPeriodika
4
n4:dodaniDat
n7:2013
n4:domaciTvurceVysledku
n11:5190703 n11:1021095 n11:3738574 n11:5694132
n4:druhVysledku
n21:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
154032
n4:idVysledku
RIV/61989592:15310/12:33140804
n4:jazykVysledku
n14:eng
n4:klicovaSlova
Rubus; Hybridisation; Flow cytometry; Endosperm; Apomixis
n4:klicoveSlovo
n13:Flow%20cytometry n13:Apomixis n13:Endosperm n13:Hybridisation n13:Rubus
n4:kodStatuVydavatele
DE - Spolková republika Německo
n4:kontrolniKodProRIV
[3FBA15C3A890]
n4:nazevZdroje
Sexual Plant Reproduction
n4:obor
n12:EF
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
5
n4:projekt
n8:GA206%2F07%2F0706 n8:GA206%2F08%2F0890
n4:rokUplatneniVysledku
n7:2012
n4:svazekPeriodika
25
n4:tvurceVysledku
Bureš, Petr Trávníček, Bohumil Dančák, Martin Vašut, Radim Jan Šarhanová, Petra
n4:wos
000310951800007
s:issn
0934-0882
s:numberOfPages
17
n20:doi
10.1007/s00497-012-0200-9
n18:organizacniJednotka
15310