ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2015
Marker assisted separation of resistance genes Rph22 and Rym16 (Hb) from an associated yield penalty in a barley: Hordeum bulbosum introgression line.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Article
- Identification of novel QTL contributing to barley yellow mosaic resistance in wild barley (Hordeum vulgare spp. spontaneum).BMC plant biology · 2021Article
- Specific Resistance of Barley to Powdery Mildew, Its Use and Beyond. A Concise Critical Review.Genes · 2020Review
- High Resolution Mapping of aFrontiers in plant science · 2020Article
- Genetic mapping of a barley leaf rust resistance gene Rph26 introgressed from Hordeum bulbosum.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2018Article
- No yield penalty under favorable conditions paving the way for successful adoption of flood tolerant rice.Scientific reports · 2018Article
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Authors and funding
6 authors.
Funding
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Abstract
key messageThe resistance genes Rph22 and Rym16 (Hb) transferred into barley from Hordeum bulbosum have been separated from a large yield penalty locus that was present in the original introgression line '182Q20'. The Hordeum bulbosum introgression line '182Q20' possesses resistance to barley leaf rust (Rph22) and Barley mild mosaic virus (Rym16 (Hb) ) located on chromosome 2HL. Unfortunately, this line also carries a considerable yield penalty compared with its barley genetic background 'Golden Promise'. Quantitative trait locus (QTL) mapping of the components of yield (total yield, thousand grain weight, hectolitre weight, percentage screenings and screened yield) was performed using 75 recombinant lines derived from the original '182Q20' introgression line. A QTL for the yield penalty was located in the proximal region of the introgressed segment. Marker assisted selection targeting intraspecific recombination events between overlapping H. bulbosum introgression segments was used to develop the lines '372E' and '372H' which feature genetically small introgressions around Rph22. Further yield trials validated the separation of both Rph22 and Rym16 (Hb) from the proximal yield penalty. These results, combined with molecular markers closely linked to Rph22 and Rym16 (Hb) , make these resistance genes more attractive for barley breeding.
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