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Genomic prediction and GWAS of yield, quality and disease-related traits in spring barley and winter wheat

Tsai, Hsin-Yuan and Janss, Luc L. and Andersen, Jeppe R. and Orabi, Jihad and Jensen, Jens D. and Jahoor, Ahmed and Jensen, Just (2020). Genomic prediction and GWAS of yield, quality and disease-related traits in spring barley and winter wheat. Scientific Reports. 10 , 3347
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Abstract

Genome-wide association study (GWAS) and genomic prediction (GP) are extensively employed to accelerate genetic gain and identify QTL in plant breeding. In this study, 1,317 spring barley and 1,325 winter wheat breeding lines from a commercial breeding program were genotyped with the Illumina 9K barley or 15K wheat SNP-chip, and phenotyped in multiple years and locations. For GWAS, in spring barley, a QTL on chr. 4H associated with powdery mildew and ramularia resistance were found. There were several SNPs on chr. 4H showing genome-wide significance with yield traits. In winter wheat, GWAS identified two SNPs on chr. 6A, and one SNP on chr. 1B, significantly associated with quality trait moisture, as well as one SNP located on chr. 5B associated with starch content in the seeds. The significant SNPs identified by multiple trait GWAS were generally the same as those found in single trait GWAS. GWAS including genotype-location information in the model identified significant SNPs in each tested location, which were not found previously when including all locations in the GWAS. For GP, in spring barley, GP using the Bayesian Power Lasso model had higher accuracy than ridge regression BLUP in powdery mildew and yield traits, whereas the prediction accuracies were similar using Bayesian Power Lasso model and rrBLUP for yield traits in winter wheat.

Authors/Creators:Tsai, Hsin-Yuan and Janss, Luc L. and Andersen, Jeppe R. and Orabi, Jihad and Jensen, Jens D. and Jahoor, Ahmed and Jensen, Just
Title:Genomic prediction and GWAS of yield, quality and disease-related traits in spring barley and winter wheat
Year of publishing :2020
Volume:10
Article number:3347
Number of Pages:15
Publisher:Springer Nature
ISSN:2045-2322
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
URN:NBN:urn:nbn:se:slu:epsilon-p-107361
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107361
Additional ID:
Type of IDID
DOI10.1038/s41598-020-60203-2
Web of Science (WoS)000559777600001
ID Code:17516
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:22 Sep 2020 09:46
Metadata Last Modified:22 Sep 2020 09:46

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