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Statements

Subject Item
n2:RIV%2F67985904%3A_____%2F08%3A00307740%21RIV08-AV0-67985904
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Chromaphyosemion killifishes are a karyotypically highly diverse group of small,sexually dimorphic fishes living in rainforest rivulets in tropical West and Central Africa.In the present study,we used various chromosome banding and staining techniques to analyse the karyotypes of 13 populations representing seven described speciesand two undescribed forms.Diploid chromosome numbers(2n) and the number of chromosome arms(NF) ranged from 2n = 24 to 2n = 40 in and from NF = 40 - 54.A tentative XX/XY sex chromosome system was revealed in sevral species.Mapping cytogenetic data for all described Chromaphyosemion species onto a recently published mitochondrial DNA phylogeny revealed a complex pattern of chromosomal evolution.Together with the results of preliminary crossing and matechoice experiments,the cytogenetic and molecular phylogenetic data suggest that chromosomal rearrangements are probably not the most important and certainly not the only factor driving speciation. Halančíci rodu Chromaphyosemion jsou karyotypově vysoce variabilní, pohlavně dimorfbí skupinou ryb žijící v západním Africe. Ve studii byly použity různé cytogenetické postupy pro analýzu jedinců 13 populací (7druhů a 2 neposané druhy). Diploidní počet chromozómů se pohyboval od 2n = 24 po 2n = 40 a NF od 40 po 54. U několika druhů byl objeven XX/XY system pohlavních chromozómů. Mapování cytogenetických údajů do recentně publikovaných molekulárně genetických fylogenetických stromů objevilo velmi složitý model diferenciace jejich karyotypů a chromozómových znaků. Tyto údaje ukazují,chromozómové přestavby nejsou nejdůležitější a jistě nikoliv jedinou silou související s jejich rychlou speciací. Chromaphyosemion killifishes are a karyotypically highly diverse group of small,sexually dimorphic fishes living in rainforest rivulets in tropical West and Central Africa.In the present study,we used various chromosome banding and staining techniques to analyse the karyotypes of 13 populations representing seven described speciesand two undescribed forms.Diploid chromosome numbers(2n) and the number of chromosome arms(NF) ranged from 2n = 24 to 2n = 40 in and from NF = 40 - 54.A tentative XX/XY sex chromosome system was revealed in sevral species.Mapping cytogenetic data for all described Chromaphyosemion species onto a recently published mitochondrial DNA phylogeny revealed a complex pattern of chromosomal evolution.Together with the results of preliminary crossing and matechoice experiments,the cytogenetic and molecular phylogenetic data suggest that chromosomal rearrangements are probably not the most important and certainly not the only factor driving speciation.
dcterms:title
Karyotypova diferenciace u halančíků rodu Chrompahyosemion (Cyprinodontiformes, Nothobranchiidae): procesy, mechanismy a evoluční souvislosti Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae): patterns, mechanisms and evolutionary implications Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae): patterns, mechanisms and evolutionary implications
skos:prefLabel
Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae): patterns, mechanisms and evolutionary implications Karyotypova diferenciace u halančíků rodu Chrompahyosemion (Cyprinodontiformes, Nothobranchiidae): procesy, mechanismy a evoluční souvislosti Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae): patterns, mechanisms and evolutionary implications
skos:notation
RIV/67985904:_____/08:00307740!RIV08-AV0-67985904
n3:strany
143;153
n3:aktivita
n11:P n11:Z
n3:aktivity
P(LC06073), Z(AV0Z50450515)
n3:cisloPeriodika
-
n3:dodaniDat
n10:2008
n3:domaciTvurceVysledku
n16:9818863
n3:druhVysledku
n8:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
374599
n3:idVysledku
RIV/67985904:_____/08:00307740
n3:jazykVysledku
n13:eng
n3:klicovaSlova
chromosomal evolution; chromosomal speciation; chromosome banding
n3:klicoveSlovo
n4:chromosome%20banding n4:chromosomal%20speciation n4:chromosomal%20evolution
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[97ACD2F8E24F]
n3:nazevZdroje
Biological Journal of the Linnean Society
n3:obor
n17:EG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:projekt
n9:LC06073
n3:rokUplatneniVysledku
n10:2008
n3:svazekPeriodika
94
n3:tvurceVysledku
Völker, M. Kullmann, H. Ráb, Petr
n3:zamer
n14:AV0Z50450515
s:issn
0024-4066
s:numberOfPages
11