Abstract
Abstract
Key message
A major yellow rust resistance QTL, QYr.nmbu.6A, contributed consistent adult plant resistance in field trials across Europe, China, Kenya and Mexico.
Abstract
Puccinia striiformis f. sp. tritici, causing wheat yellow rust (YR), is one of the most devastating biotrophic pathogens affecting global wheat yields. Owing to the recent epidemic of the PstS10 race group in Europe, yellow rust has become a reoccurring disease in Norway since 2014. As all stage resistances (ASR) (or seedling resistances) are usually easily overcome by pathogen evolution, deployment of durable adult plant resistance (APR) is crucial for yellow rust resistance breeding. In this study, we assessed a Nordic spring wheat association mapping panel (n = 301) for yellow rust field resistance in seventeen field trials from 2015 to 2021, including nine locations in six countries across four different continents. Nine consistent QTL were identified across continents by genome-wide association studies (GWAS). One robust QTL on the long arm of chromosome 6A, QYr.nmbu.6A, was consistently detected in nine out of the seventeen trials. Haplotype analysis of QYr.nmbu.6A confirmed significant QTL effects in all tested environments and the effect was also validated using an independent panel of new Norwegian breeding lines. Increased frequency of the resistant haplotype was found in new varieties and breeding lines in comparison to older varieties and landraces, implying that the resistance might have been selected for due to the recent changes in the yellow rust pathogen population in Europe.
Funder
Norges Forskningsråd
Horizon 2020 Framework Programme
Norwegian University of Life Sciences
Publisher
Springer Science and Business Media LLC
Subject
Genetics,Agronomy and Crop Science,General Medicine,Biotechnology
Reference51 articles.
1. Abrahamsen, U, Ficke, A, Brodal, G, Lillemo, M, Dieseth, J, and Kim, M (2017). "Yellow rust in wheat. Jord og plantekultur 2017 (in Norwegian)." in NIBIO Bok.), pp 109–118.
2. Ali S, Rodriguez-Algaba J, Thach T, Sorensen CK, Hansen JG, Lassen P et al (2017) Yellow rust epidemics worldwide were caused by pathogen races from divergent genetic lineages. Front Plant Sci 8:1057. https://doi.org/10.3389/fpls.2017.01057
3. Athiyannan N, Abrouk M, Boshoff WHP, Cauet S, Rodde N, Kudrna D et al (2022) Long-read genome sequencing of bread wheat facilitates disease resistance gene cloning. Nat Genet 54(3):227–231. https://doi.org/10.1038/s41588-022-01022-1
4. Beales J, Turner A, Griffiths S, Snape JW, Laurie DA (2007) A pseudo-response regulator is misexpressed in the photoperiod insensitive Ppd-D1a mutant of wheat (Triticum aestivum L.). Theor Appl Genet 115(5):721–733. https://doi.org/10.1007/s00122-007-0603-4
5. Beukert U, Liu G, Thorwarth P, Boeven PHG, Longin CFH, Zhao Y et al (2020) The potential of hybrid breeding to enhance leaf rust and stripe rust resistance in wheat. Theor Appl Genet. https://doi.org/10.1007/s00122-020-03588-y
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