Powdery mildew resistance genes in single-plant progenies derived from accessions of a winter barley core collection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F21%3A10174328" target="_blank" >RIV/00027006:_____/21:10174328 - isvavai.cz</a>

Alternative codes found

RIV/25328859:_____/21:N0000006

Result on the web

<a href="https://www.mdpi.com/2223-7747/10/10/1988/pdf" target="_blank" >https://www.mdpi.com/2223-7747/10/10/1988/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/plants10101988" target="_blank" >10.3390/plants10101988</a>

Result language

angličtina

Original language name

Powdery mildew resistance genes in single-plant progenies derived from accessions of a winter barley core collection

Original language description

The main problems of crop gene banks comprise heterogeneity of accessions, resulting from mechanical admixtures or out-crossing during their multiplication, and especially the mislabeling of accessions. These discrepancies can adversely affect the results of many expensive research and breeding projects that are based on the use of gene bank resources. To tackle these problems, 860 single-plant progenies (SPPs) of 172 accessions of the Czech winter barley core collection were grown and tested with a set of 53 isolates representing the global virulence/avirulence diversity of powdery mildew. Seventy-one resistance phenotypes encompassed the diversity of known specific resistances and their combinations. Based on testing groups of five SPPs, 94 accessions had one phenotype found in all five SPPs (homogeneous accessions), whereas in 78 accessions (45.3%) more than one phenotype was identified (heterogeneous accessions). In three varieties, specific resistances against the whole set of isolates were detected, but due to high adaptability of the pathogen, they are not recommended for breeding resistant cultivars. Selected SPPs were integrated in the gene bank and are now a reliable source of genotypically pure seed with defined powdery mildew resistance genes that can be used by breeders and researchers. The results obtained can be used to verify authenticity of accession genotype and pedigree, particularly for older varieties for which no other original criteria are available.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Name of the periodical

Plants-Basel

ISSN

2223-7747

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

10

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

1988

UT code for WoS article

000712447800001

EID of the result in the Scopus database

2-s2.0-85115370390