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Statements

Subject Item
n2:RIV%2F67985904%3A_____%2F02%3A21023017%21RIV%2F2003%2FAV0%2FA21003%2FN
rdf:type
skos:Concept n10:Vysledek
dcterms:description
The cyprinid genus Barbus, with more than 800 nominal species, is an apparently polyphyletic assemblage to which a number of unrelated species, groups and/or assemblages have been assigned. It includes species that exhibit three different ploidy levels:diploid, tetraploid and hexaploid.We used complete sequences of the mitochondrial cytochrome b gene in order to infer phylogenetic relationships between diploid, tetraploid and hexaploid species of 'Barbus' occuring in southern Africa, the only region where representatives of all of the three ploidy levels occur. The southern African tetraploids probably originated from southern African diploids. The 'small' African diploid species seem to be paraphyletic, while the 'large' African hexaploid barbs species are of a single, recent origin and form a monophyletic group. The evidence of multiple, independent origins of polyploidy occurring in the African cyprinine cyprinids thus provides a significant contribution to the knowledge on the systematic diversity The cyprinid genus Barbus, with more than 800 nominal species, is an apparently polyphyletic assemblage to which a number of unrelated species, groups and/or assemblages have been assigned. It includes species that exhibit three different ploidy levels:diploid, tetraploid and hexaploid.We used complete sequences of the mitochondrial cytochrome b gene in order to infer phylogenetic relationships between diploid, tetraploid and hexaploid species of 'Barbus' occuring in southern Africa, the only region where representatives of all of the three ploidy levels occur. The southern African tetraploids probably originated from southern African diploids. The 'small' African diploid species seem to be paraphyletic, while the 'large' African hexaploid barbs species are of a single, recent origin and form a monophyletic group. The evidence of multiple, independent origins of polyploidy occurring in the African cyprinine cyprinids thus provides a significant contribution to the knowledge on the systematic diversity
dcterms:title
Multiple origins of polyploidy in the phylogeny of southern African barbs (Cyprinidae) as inferred from mtDNA markers. Multiple origins of polyploidy in the phylogeny of southern African barbs (Cyprinidae) as inferred from mtDNA markers.
skos:prefLabel
Multiple origins of polyploidy in the phylogeny of southern African barbs (Cyprinidae) as inferred from mtDNA markers. Multiple origins of polyploidy in the phylogeny of southern African barbs (Cyprinidae) as inferred from mtDNA markers.
skos:notation
RIV/67985904:_____/02:21023017!RIV/2003/AV0/A21003/N
n4:strany
466;473
n4:aktivita
n17:P n17:Z
n4:aktivity
P(IBS5045011), P(KSK6005114), Z(AV0Z5045916)
n4:cisloPeriodika
N/A
n4:dodaniDat
n13:2003
n4:domaciTvurceVysledku
n16:9818863
n4:druhVysledku
n14:J
n4:duvernostUdaju
n18:S
n4:entitaPredkladatele
n8:predkladatel
n4:idSjednocenehoVysledku
654636
n4:idVysledku
RIV/67985904:_____/02:21023017
n4:jazykVysledku
n15:eng
n4:klicovaSlova
barbus; Cyprinidae; mitochondrial DNA
n4:klicoveSlovo
n5:barbus n5:Cyprinidae n5:mitochondrial%20DNA
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[C846172CD311]
n4:nazevZdroje
Heredity
n4:obor
n12:EB
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
4
n4:pocetUcastnikuAkce
0
n4:pocetZahranicnichUcastnikuAkce
0
n4:projekt
n9:IBS5045011 n9:KSK6005114
n4:rokUplatneniVysledku
n13:2002
n4:svazekPeriodika
88
n4:tvurceVysledku
Ráb, Petr Tsigenopoulos, C. S. Berrebi, P. Naran, D.
n4:zamer
n11:AV0Z5045916
s:issn
0018-067X
s:numberOfPages
8