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Statements

Subject Item
n2:RIV%2F67985904%3A_____%2F06%3A00047962%21RIV07-AV0-67985904
rdf:type
skos:Concept n16:Vysledek
dcterms:description
African killifishes of the genus Chromaphyosemion show a high degree of phenotypic and karyotypic diversity. The latter is especially pronounced in C. riggenbachi , a morphologically defined species restricted to a small distribution area in Cameroon. This study presents a detailed reconstruction of karyotype differentiation within C. riggenbachi using conventional Giemsa staining and sequential chromosome banding as well as a phylogenetic analysis based on part of the mitochondrial (mt) cytochrome b gene from eleven populations. The cytogenetic analysis revealed differences in chromosome morphology, banding patterns and/or diploid chromosome number (2n) among all populations examined. Diploid number ranged from 2n = 20 to 2n = 36 and varied mainly among populations, while C-banding patterns and NOR phenotypes showed fixed differences among populations as well as some variability within populations. The mtDNA analysis disclosed five clearly differentiated haplotype groups. Mapping the karyotype dat... Studie uvádí detailní rekonstrukci karyotypové diferenciace u C. rigenbachii za použití diferenciálního barvení chromozómů a fylogenetické analýzy mt genu pro cytochrom b u 11 známých populací tohoto druhu. Cytogenetická analýza odhalila počet chromozómů pohybující se od 2n = 20 do 2n 36, rozdíly v morfologii chromozómů, C-pruhování a NOR fenotypy měly rozdíly fixované mezi populace. Fylogenetická analýza ukázala 5 jasně diferencovaných skupin a mapování cytogenetických údajů do mt DNA stromu ukázalo, že redukce 2n se pohybuje od basálních po nepokročilejší mt skupiny. Diferenciace karyotypů tak zahrnovala především Robertsonovské fúze a v některých případech ne-Robertsnovské procesy. Tato detailní analýza kombinovaná s výsledky hybridizačních experimentů naznačuje incipientní speciaci mezi populacemi druhu. African killifishes of the genus Chromaphyosemion show a high degree of phenotypic and karyotypic diversity. The latter is especially pronounced in C. riggenbachi , a morphologically defined species restricted to a small distribution area in Cameroon. This study presents a detailed reconstruction of karyotype differentiation within C. riggenbachi using conventional Giemsa staining and sequential chromosome banding as well as a phylogenetic analysis based on part of the mitochondrial (mt) cytochrome b gene from eleven populations. The cytogenetic analysis revealed differences in chromosome morphology, banding patterns and/or diploid chromosome number (2n) among all populations examined. Diploid number ranged from 2n = 20 to 2n = 36 and varied mainly among populations, while C-banding patterns and NOR phenotypes showed fixed differences among populations as well as some variability within populations. The mtDNA analysis disclosed five clearly differentiated haplotype groups. Mapping the karyotype dat...
dcterms:title
Karyotypová diferenciace halančíků rodu Chromaphyosemion (Cyprinodontiformes, Nothobranchiidae). II Cytogenetická a mtDNA analýzy demonstrují evoluční trajektorii karyotypevé diferenciace u C. rigenbachii Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae)II: Cytogenetic and mitochondrial DNA analyses demostrate karyotype differentiation and its evolutionary direction in C. riggenbachi Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae)II: Cytogenetic and mitochondrial DNA analyses demostrate karyotype differentiation and its evolutionary direction in C. riggenbachi
skos:prefLabel
Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae)II: Cytogenetic and mitochondrial DNA analyses demostrate karyotype differentiation and its evolutionary direction in C. riggenbachi Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae)II: Cytogenetic and mitochondrial DNA analyses demostrate karyotype differentiation and its evolutionary direction in C. riggenbachi Karyotypová diferenciace halančíků rodu Chromaphyosemion (Cyprinodontiformes, Nothobranchiidae). II Cytogenetická a mtDNA analýzy demonstrují evoluční trajektorii karyotypevé diferenciace u C. rigenbachii
skos:notation
RIV/67985904:_____/06:00047962!RIV07-AV0-67985904
n3:strany
70;83
n3:aktivita
n14:Z
n3:aktivity
Z(AV0Z50450515)
n3:cisloPeriodika
1
n3:dodaniDat
n6:2007
n3:domaciTvurceVysledku
n8:9818863
n3:druhVysledku
n17:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
481491
n3:idVysledku
RIV/67985904:_____/06:00047962
n3:jazykVysledku
n4:eng
n3:klicovaSlova
karyotype differentiation
n3:klicoveSlovo
n12:karyotype%20differentiation
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[B729DD5C43B4]
n3:nazevZdroje
Cytogenetics and Genome Research
n3:obor
n15:EB
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n6:2006
n3:svazekPeriodika
115
n3:tvurceVysledku
Ráb, Petr Völker, M. Kullmann, H. Sonnenberg, R.
n3:zamer
n11:AV0Z50450515
s:issn
1424-8581
s:numberOfPages
14