Identification of resistance genes against powdery mildew in wild barley PI284752 by DNA markers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F08%3A00025201" target="_blank" >RIV/00216224:14310/08:00025201 - 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 of resistance genes against powdery mildew in wild barley PI284752 by DNA markers

Original language description

A newly detected accession of wild barley (Hordeum vulgare ssp. spontaneum) resistant to powdery mildew caused by Blumeria graminis f. sp. hordei was studied with the aim of finding the number and identity of genes conferring the resistance. Therefore, F2 population derived from a cross between the winter variety Tiffany and the wild barley accession PI284752 consisted of 449 plants was established. Use of DNA markers was focused on the identification of individual resistance genes by means of their chromosomal locations. The number of plants in the two phenotypic categories (427 resistant and 22 susceptible) found in F2 population was compared with a theoretical Mendelian segregation ratio by a chi-square test and a two-locus model of resistance was shown by this genetic analysis (chi-square=1.37). In PI284752, dominant alleles of two independent genes were present; the allelism test indicated that one gene was located at the Mla locus. All parental plants of PI284752 showed the highe

Czech name

Identifikace genů odolnosti k padlí travnímu u planého ječmene PI284752 pomocí DNA markerů

Czech description

A newly detected accession of wild barley (Hordeum vulgare ssp. spontaneum) resistant to powdery mildew caused by Blumeria graminis f. sp. hordei was studied with the aim of finding the number and identity of genes conferring the resistance. Therefore, F2 population derived from a cross between the winter variety Tiffany and the wild barley accession PI284752 consisted of 449 plants was established. Use of DNA markers was focused on the identification of individual resistance genes by means of their chromosomal locations. The number of plants in the two phenotypic categories (427 resistant and 22 susceptible) found in F2 population was compared with a theoretical Mendelian segregation ratio by a chi-square test and a two-locus model of resistance was shown by this genetic analysis (chi-square=1.37). In PI284752, dominant alleles of two independent genes were present; the allelism test indicated that one gene was located at the Mla locus. All parental plants of PI284752 showed the highe

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%2F06%2F0608" target="_blank" >GA522/06/0608: Development of DNA markers and construction of a genetic map to localize new genes for powdery mildew resistance in winter barley</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Article name in the collection

Proceedings Modern Variety Breeding for Present and Future Needs

ISBN

978-84-8363-302-1

ISSN

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e-ISSN

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Number of pages

1

Pages from-to

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Publisher name

Universidad Politécnica de Valencia

Place of publication

Valencia, Spain

Event location

Valencia, Spain

Event date

Jan 1, 2008

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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