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Genome-Wide Association Mapping of Loci for Resistance to Stripe Rust in North American Elite Spring Wheat Germplasm.
Phytopathology. 2018 Feb; 108(2):234-245.P

Abstract

Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a major yield-limiting foliar disease of wheat (Triticum aestivum) worldwide. In this study, the genetic variability of elite spring wheat germplasm from North America was investigated to characterize the genetic basis of effective all-stage and adult plant resistance (APR) to stripe rust. A genome-wide association study was conducted using 237 elite spring wheat lines genotyped with an Illumina Infinium 90K single-nucleotide polymorphism array. All-stage resistance was evaluated at seedling stage in controlled conditions and field evaluations were conducted under natural disease pressure in eight environments across Washington State. High heritability estimates and correlations between infection type and severity were observed. Ten loci for race-specific all-stage resistance were confirmed from previous mapping studies. Three potentially new loci associated with race-specific all-stage resistance were identified on chromosomes 1D, 2A, and 5A. For APR, 11 highly significant quantitative trait loci (QTL) (false discovery rate < 0.01) were identified, of which 3 QTL on chromosomes 3A, 5D, and 7A are reported for the first time. The QTL identified in this study can be used to enrich the current gene pool and improve the diversity of resistance to stripe rust disease.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Godoy JG
First, second, and fourth authors: Department of Crop and Soil Sciences, Washington State University, Pullman 99164-6420; and third author: United States Department of Agriculture-Agricultural Research Service and Department of Plant Pathology, Washington State University, Pullman 99164-6430.
Rynearson S
First, second, and fourth authors: Department of Crop and Soil Sciences, Washington State University, Pullman 99164-6420; and third author: United States Department of Agriculture-Agricultural Research Service and Department of Plant Pathology, Washington State University, Pullman 99164-6430.
Chen X
First, second, and fourth authors: Department of Crop and Soil Sciences, Washington State University, Pullman 99164-6420; and third author: United States Department of Agriculture-Agricultural Research Service and Department of Plant Pathology, Washington State University, Pullman 99164-6430.
Pumphrey M
First, second, and fourth authors: Department of Crop and Soil Sciences, Washington State University, Pullman 99164-6420; and third author: United States Department of Agriculture-Agricultural Research Service and Department of Plant Pathology, Washington State University, Pullman 99164-6430.

MeSH

BasidiomycotaChromosome MappingDisease ResistanceGenome, PlantGenome-Wide Association StudyGenotypePlant DiseasesQuantitative Trait LociSeedlingsTriticum

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

28952421

Citation

Godoy, Jayfred Gaham, et al. "Genome-Wide Association Mapping of Loci for Resistance to Stripe Rust in North American Elite Spring Wheat Germplasm." Phytopathology, vol. 108, no. 2, 2018, pp. 234-245.
Godoy JG, Rynearson S, Chen X, et al. Genome-Wide Association Mapping of Loci for Resistance to Stripe Rust in North American Elite Spring Wheat Germplasm. Phytopathology. 2018;108(2):234-245.
Godoy, J. G., Rynearson, S., Chen, X., & Pumphrey, M. (2018). Genome-Wide Association Mapping of Loci for Resistance to Stripe Rust in North American Elite Spring Wheat Germplasm. Phytopathology, 108(2), 234-245. https://doi.org/10.1094/PHYTO-06-17-0195-R
Godoy JG, et al. Genome-Wide Association Mapping of Loci for Resistance to Stripe Rust in North American Elite Spring Wheat Germplasm. Phytopathology. 2018;108(2):234-245. PubMed PMID: 28952421.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Genome-Wide Association Mapping of Loci for Resistance to Stripe Rust in North American Elite Spring Wheat Germplasm. AU - Godoy,Jayfred Gaham, AU - Rynearson,Sheri, AU - Chen,Xianming, AU - Pumphrey,Michael, Y1 - 2017/12/27/ PY - 2017/9/28/pubmed PY - 2018/4/20/medline PY - 2017/9/28/entrez SP - 234 EP - 245 JF - Phytopathology JO - Phytopathology VL - 108 IS - 2 N2 - Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a major yield-limiting foliar disease of wheat (Triticum aestivum) worldwide. In this study, the genetic variability of elite spring wheat germplasm from North America was investigated to characterize the genetic basis of effective all-stage and adult plant resistance (APR) to stripe rust. A genome-wide association study was conducted using 237 elite spring wheat lines genotyped with an Illumina Infinium 90K single-nucleotide polymorphism array. All-stage resistance was evaluated at seedling stage in controlled conditions and field evaluations were conducted under natural disease pressure in eight environments across Washington State. High heritability estimates and correlations between infection type and severity were observed. Ten loci for race-specific all-stage resistance were confirmed from previous mapping studies. Three potentially new loci associated with race-specific all-stage resistance were identified on chromosomes 1D, 2A, and 5A. For APR, 11 highly significant quantitative trait loci (QTL) (false discovery rate < 0.01) were identified, of which 3 QTL on chromosomes 3A, 5D, and 7A are reported for the first time. The QTL identified in this study can be used to enrich the current gene pool and improve the diversity of resistance to stripe rust disease. SN - 0031-949X UR - https://www.unboundmedicine.com/medline/citation/28952421/Genome_Wide_Association_Mapping_of_Loci_for_Resistance_to_Stripe_Rust_in_North_American_Elite_Spring_Wheat_Germplasm_ DB - PRIME DP - Unbound Medicine ER -