Resistance to Rhynchosporium commune in a collection of European spring barley germplasm

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Mark E LooseleyAnna Avrova

Abstract

Association analyses of resistance to Rhynchosporium commune in a collection of European spring barley germplasm detected 17 significant resistance quantitative trait loci. The most significant association was confirmed as Rrs1. Rhynchosporium commune is a fungal pathogen of barley which causes a highly destructive and economically important disease known as rhynchosporium. Genome-wide association mapping was used to investigate the genetic control of host resistance to R. commune in a collection of predominantly European spring barley accessions. Multi-year disease nursery field trials revealed 8 significant resistance quantitative trait loci (QTL), whilst a separate association mapping analysis using historical data from UK national and recommended list trials identified 9 significant associations. The most significant association identified in both current and historical data sources, collocated with the known position of the major resistance gene Rrs1. Seedling assays with R. commune single-spore isolates expressing the corresponding avirulence protein NIP1 confirmed that this locus is Rrs1. These results highlight the significant and continuing contribution of Rrs1 to host resistance in current elite spring barley germplas...Continue Reading

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Citations

Jan 23, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Mark E LooseleyAnna Avrova
May 15, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Yonggang WangChengdao Li
Dec 14, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Max CoulterAnna Avrova
Jun 17, 2020·Molecular Plant Pathology·Xuechen ZhangAndrew Milgate
Jun 9, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Mark E LooseleyWilliam T B Thomas
May 12, 2020·Frontiers in Microbiology·Simone WeinbergerGeorg M Guebitz
Aug 6, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Juho HautsaloUNKNOWN PPP Barley Consortium

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Methods Mentioned

BETA
genotyping
PCA
confocal microscopy

Software Mentioned

BLASTn
Genstat
VSTRUCTURE
R
VCMODEL
iSelect
LPmerge
IMPROMALT
ExBarDiv
PopSeq

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