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Statements

Subject Item
n2:RIV%2F61389030%3A_____%2F10%3A00349180%21RIV11-GA0-61389030
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Crossing over-based recombination is a powerful tool for generating new allelic combinations during sexual reproduction. It usually occurs between homologous chromosomes. However, under some conditions, homoeologues may also be capable of crossing over. Whether homologous and homoeologous crossovers are equivalent and governed by the same rules has never been established. Here we report on chromosome distribution of homoeologous crossovers in a unique system of Festuca X Lolium hybrids. Unlike in most other hybrids, in these intergeneric hybrids, homoeologous chromosomes are capable of pairing and crossing over with frequencies approaching that of homologues. At the same time, genome divergence makes cytological detection of chromosome recombination feasible. We analyzed the distribution of homoeologous recombination along individual chromosomes in a complete set of intergeneric single chromosome substitutions from F. pratensis into tetraploid L. multiflorum. Crossing over-based recombination is a powerful tool for generating new allelic combinations during sexual reproduction. It usually occurs between homologous chromosomes. However, under some conditions, homoeologues may also be capable of crossing over. Whether homologous and homoeologous crossovers are equivalent and governed by the same rules has never been established. Here we report on chromosome distribution of homoeologous crossovers in a unique system of Festuca X Lolium hybrids. Unlike in most other hybrids, in these intergeneric hybrids, homoeologous chromosomes are capable of pairing and crossing over with frequencies approaching that of homologues. At the same time, genome divergence makes cytological detection of chromosome recombination feasible. We analyzed the distribution of homoeologous recombination along individual chromosomes in a complete set of intergeneric single chromosome substitutions from F. pratensis into tetraploid L. multiflorum.
dcterms:title
Physical Distribution of Homoeologous Recombination in Individual Chromosomes of Festuca pratensis in Lolium multiflorum Physical Distribution of Homoeologous Recombination in Individual Chromosomes of Festuca pratensis in Lolium multiflorum
skos:prefLabel
Physical Distribution of Homoeologous Recombination in Individual Chromosomes of Festuca pratensis in Lolium multiflorum Physical Distribution of Homoeologous Recombination in Individual Chromosomes of Festuca pratensis in Lolium multiflorum
skos:notation
RIV/61389030:_____/10:00349180!RIV11-GA0-61389030
n4:aktivita
n11:P n11:I n11:Z
n4:aktivity
I, P(GP521/07/P479), P(QH71267), Z(AV0Z50380511)
n4:cisloPeriodika
1-3
n4:dodaniDat
n18:2011
n4:domaciTvurceVysledku
n6:6390471 n6:4922220 n6:1800477 n6:3887847
n4:druhVysledku
n13:J
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n14:predkladatel
n4:idSjednocenehoVysledku
278908
n4:idVysledku
RIV/61389030:_____/10:00349180
n4:jazykVysledku
n8:eng
n4:klicovaSlova
Chromosome introgression; Festuca; Flow cytometry
n4:klicoveSlovo
n5:Flow%20cytometry n5:Festuca n5:Chromosome%20introgression
n4:kodStatuVydavatele
CH - Švýcarská konfederace
n4:kontrolniKodProRIV
[910A19AF84E0]
n4:nazevZdroje
Cytogenetics and Genome Research
n4:obor
n12:GE
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
8
n4:projekt
n9:GP521%2F07%2FP479 n9:QH71267
n4:rokUplatneniVysledku
n18:2010
n4:svazekPeriodika
129
n4:tvurceVysledku
Havránková, Miroslava Kopecká, J. Kopecký, David Loureiro, J. Bartoš, Jan Lukaszewski, A. J. Castro, S. Doležel, Jaroslav
n4:wos
000280519500018
n4:zamer
n17:AV0Z50380511
s:issn
1424-8581
s:numberOfPages
11