Chování jednotlivých chromozómů Festuca pratensis v průběhu miózy u tetraploida Lolium multiflorum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F08%3A00323103" target="_blank" >RIV/61389030:_____/08:00323103 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Meiotic behaviour of individual chromosomes of Festuca pratensis in tetraploid Lolium multiflorum

Popis výsledku v původním jazyce

Intergeneric hybrids of fescues (Festuca spp.) and ryegrasses (Lolium spp.) are unique for the ability of their chromosomes to pair essentially freely in meiotic metaphase I (MI). At the same time, their chromosomes can be readily recognized by genomic in-situ hybridization (GISH). Past genome-wide observations suggested that this homoeologous pairing was not completely random. In this study we extend the analysis to all seven individual chromosomes of F. pratensis introgressed into autotetraploid L. multiflorum and show that for any F. pratensis chromosome the choice of an MI pairing partner depends on the identity of the remaining chromosomes present in the quadruplet. In monosomic introgressions, the choice of a homologous or homoeologous partner was completely random; in disomics there was a slight preference for homologous pairing. Pairing preference was similar for each chromosome, suggesting that pairing affinity of all chromosomes is essentially the same and no structural rearr

Název v anglickém jazyce

Meiotic behaviour of individual chromosomes of Festuca pratensis in tetraploid Lolium multiflorum

Popis výsledku anglicky

Intergeneric hybrids of fescues (Festuca spp.) and ryegrasses (Lolium spp.) are unique for the ability of their chromosomes to pair essentially freely in meiotic metaphase I (MI). At the same time, their chromosomes can be readily recognized by genomic in-situ hybridization (GISH). Past genome-wide observations suggested that this homoeologous pairing was not completely random. In this study we extend the analysis to all seven individual chromosomes of F. pratensis introgressed into autotetraploid L. multiflorum and show that for any F. pratensis chromosome the choice of an MI pairing partner depends on the identity of the remaining chromosomes present in the quadruplet. In monosomic introgressions, the choice of a homologous or homoeologous partner was completely random; in disomics there was a slight preference for homologous pairing. Pairing preference was similar for each chromosome, suggesting that pairing affinity of all chromosomes is essentially the same and no structural rearr

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

<a href="/cs/project/GP521%2F07%2FP479" target="_blank" >GP521/07/P479: Cytogenetické mapování genomu kostřavy luční (Festuca pratensis Huds.)</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chromosome Research

ISSN

0967-3849

e-ISSN

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Svazek periodika

16

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

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Kód UT WoS článku

000260510400006

EID výsledku v databázi Scopus

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