Identification and mapping of resistance genes to powdery mildew in barley.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F04%3A00011797" target="_blank" >RIV/00216224:14310/04:00011797 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Identification and mapping of resistance genes to powdery mildew in barley.

Original language description

The introduction of resistance genes to powdery mildew (Blumeria graminis f. sp. hordei) present in two accessions (PI354949 and PI466495) of wild barley (Hordeum vulgare subsp. spontaneum) into H. vulgare was performed by the cross with the variety Tiffany. Powdery mildew resistance tests on plants of F2 generation revealed the segregation ratio 15 : 1 in Tiffany x PI354949 and 3 : 1 in Tiffany x PI466495, which indicated presence of two and one dominant resistance genes, respectively. To identify individual R genes, technology of microsatellite DNA markers and linkage recombination analysis was applied. One of resistance genes in PI354949 was determined to be located in Mla locus linked with Bmac0213 (25.0 cM in distal position) on chromosome 1H andthe other on chromosome 7H linked with Bmag0507 (14.0 cM in proximal position). In PI466495, R gene was linked with Bmac0213 (8.4 cM in distal position) and it is also located in Mla locus. The perspective aim of this work is fine-mapping

Czech name

Identifikace a genetické mapování genů odolnosti k padlí travnímu u ječmene.

Czech description

Byly identifikovány dva zdroje odolnosti k padlí travnímu (Blumeria graminis f. sp. hordei) u ječmene (Hordeum vulgare subsp. spontaneum). Křížení těchto zdrojů s odrůdou Tiffany (Hordeum vulgare) umožnilo identifikovat v generaci F2 štěpný poměr 15 : 1u Tiffany x PI354949 a 3 : 1 u Tiffany x PI466495, což odpovídá determinaci odolnosti jedním a dvěma geny. Mikrosatelitové DNA markery a rekombinační analýza v F2 byly využity k lokalizaci genů odolnosti do genetické mapy.

Type

D - Article in proceedings

CEP classification

EB - Genetics and molecular biology

OECD FORD branch

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Project

<a href="/en/project/GA522%2F03%2F0112" target="_blank" >GA522/03/0112: Localisation of resistance genes to Blumeria graminis f. sp. hordei in new sources of Hordeum vulgare ssp. spontaneum using molecular markers</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

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

Article name in the collection

Czech Journal of Genetics and Plant Breeding

ISBN

1212-1975

ISSN

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e-ISSN

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Number of pages

1

Pages from-to

51-51

Publisher name

Czech academy of agricultural science

Place of publication

Praha

Event location

Brno

Event date

Jun 20, 2004

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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