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Statements

Subject Item
n2:RIV%2F60076658%3A12520%2F13%3A43885195%21RIV14-GA0-12520___
rdf:type
n7:Vysledek skos:Concept
rdfs:seeAlso
http://onlinelibrary.wiley.com/doi/10.1111/jai.12224/abstract
dcterms:description
Genome duplications and polyploidization events are thought to have played relevant roles in the early stages of vertebrate evolution, in particular near the time of divergence of the lamprey lineage. Additional genome duplications, specifically in ray-finned fish, may have occurred before the divergence of the teleosts. The role of polyploidization in vertebrate genome evolution is a thriving area of research. Sturgeons (order Acipenseriformes) provide a unique model for the investigation of genome duplication, with existing species possessing 120, 250 or 360 chromosomes. In the present study, data from 240 sturgeon specimens representing 11 species were used for analysis of ploidy levels. Allele numbers were assessed at eleven microsatellite loci. The results provide further evidence for functional diploidy, tetraploidy and hexaploidy in species possessing 120, 250 and 360 chromosomes, respectively. The analysis also uncovered novel evidence for functional hexaploidy in the shortnose sturgeon (Acipenser brevirostrum). In conclusion, the process of functional genome reduction is demonstrated to be an on-going process in this fish lineage. Genome duplications and polyploidization events are thought to have played relevant roles in the early stages of vertebrate evolution, in particular near the time of divergence of the lamprey lineage. Additional genome duplications, specifically in ray-finned fish, may have occurred before the divergence of the teleosts. The role of polyploidization in vertebrate genome evolution is a thriving area of research. Sturgeons (order Acipenseriformes) provide a unique model for the investigation of genome duplication, with existing species possessing 120, 250 or 360 chromosomes. In the present study, data from 240 sturgeon specimens representing 11 species were used for analysis of ploidy levels. Allele numbers were assessed at eleven microsatellite loci. The results provide further evidence for functional diploidy, tetraploidy and hexaploidy in species possessing 120, 250 and 360 chromosomes, respectively. The analysis also uncovered novel evidence for functional hexaploidy in the shortnose sturgeon (Acipenser brevirostrum). In conclusion, the process of functional genome reduction is demonstrated to be an on-going process in this fish lineage.
dcterms:title
Extensive genome duplications in sturgeons: new evidence from microsatellite data Extensive genome duplications in sturgeons: new evidence from microsatellite data
skos:prefLabel
Extensive genome duplications in sturgeons: new evidence from microsatellite data Extensive genome duplications in sturgeons: new evidence from microsatellite data
skos:notation
RIV/60076658:12520/13:43885195!RIV14-GA0-12520___
n7:predkladatel
n15:orjk%3A12520
n4:aktivita
n5:S n5:P
n4:aktivity
P(ED2.1.00/01.0024), P(GA523/08/0824), S
n4:cisloPeriodika
4
n4:dodaniDat
n11:2014
n4:domaciTvurceVysledku
n17:2222590 n17:4098285 n17:2489627
n4:druhVysledku
n21:J
n4:duvernostUdaju
n19:S
n4:entitaPredkladatele
n18:predkladatel
n4:idSjednocenehoVysledku
74389
n4:idVysledku
RIV/60076658:12520/13:43885195
n4:jazykVysledku
n12:eng
n4:klicovaSlova
evolution; inheritance; scaphirhynchus; karyotype; loci; ploidy levels; genetic-variation; atlantic sturgeon; shortnose sturgeon; acipenser-sturio
n4:klicoveSlovo
n8:atlantic%20sturgeon n8:shortnose%20sturgeon n8:evolution n8:acipenser-sturio n8:ploidy%20levels n8:scaphirhynchus n8:karyotype n8:loci n8:inheritance n8:genetic-variation
n4:kodStatuVydavatele
DE - Spolková republika Německo
n4:kontrolniKodProRIV
[A38E686F34CA]
n4:nazevZdroje
Journal of Applied Ichthyology
n4:obor
n13:GL
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
5
n4:projekt
n16:ED2.1.00%2F01.0024 n16:GA523%2F08%2F0824
n4:rokUplatneniVysledku
n11:2013
n4:svazekPeriodika
29
n4:tvurceVysledku
Hulák, Martin Flajšhans, Martin Havelka, Miloš Bailie, D. A. Prodoehl, P. A.
n4:wos
000321436500003
s:issn
0175-8659
s:numberOfPages
5
n20:doi
10.1111/jai.12224
n10:organizacniJednotka
12520