Number of the records: 1

Chromosome pairing of individual genomes in tall fescue (Festuca arundinacea Schreb.), its progenitors, and hybrids with Italian ryegrass (Lolium multiflorum Lam.)

SYSNO ASEP	0335910
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Chromosome pairing of individual genomes in tall fescue (Festuca arundinacea Schreb.), its progenitors, and hybrids with Italian ryegrass (Lolium multiflorum Lam.)
Title	Párování chromozómů jednotlivých genomů kostřavy luční (Festuca arundinacea Schreb.), jejich předchůdců a hybridů s jílkem mnohokvětým (Lolium multiflorum Lam.)
Author(s)	Kopecký, David (UEB-Q)_{RID, ORCID} Bartoš, Jan (UEB-Q)_{RID, ORCID} Zwierzykowski, Z. (PL) Doležel, Jaroslav (UEB-Q)_{RID, ORCID}
Source Title	Cytogenetic and Genome Research. - : Karger - ISSN 1424-8581 Roč. 124, č. 2 (2009), s. 170-178
Number of pages	9 s.
Language	eng - English
Country	CH - Switzerland
Keywords	IN-SITU-HYBRIDIZATION ; GENETIC-CONTROL ; VAR. GLAUCESCENS
Subject RIV	EB - Genetics ; Molecular Biology
R&D Projects	GP521/07/P479 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z50380511 - UEB-Q (2005-2011)
UT WOS	000265863900009
DOI	10.1159/000207525
Annotation	A diploid-like pairing system prevents meiotic irregularities and improves the efficiency of gamete production in allo-polyploid species. While the nature of the system is known in some polyploid crops including wheat, little is known about the control of chromosome pairing in polyploid fescues (Festuca spp.). In this work we studied chromosome pairing in allohexaploid F. arundinacea, its progenitors F. pratensis and F. glaucescens, and two intergeneric hybrids Lolium multiflorum (2x) x F. arundinacea (6x) and L. multiflorum (4x) x F. glaucescens (4x). The use of genomic in situ hybridization (GISH) permitted the analysis of homoeologous chromosome pairing and recombination of different genomes involved. We detected a diploid-like pairing system in polyploid fescues F. arundinacea and F. glaucescens, the latter being one of the progenitors of F. arundinacea. The pairing control system was absent in the second progenitor F. pratensis.
Workplace	Institute of Experimental Botany
Contact	David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
Year of Publishing	2010

Number of the records: 1