Genome-wide association mapping of Fusarium head blight resistance in spring wheat lines developed in the Pacific Northwest and CIMMYT

Rui Wang; Jianli Chen; James A. Anderson; Junli Zhang; Weidong Zhao; Justin Wheeler; Natalie Klassen; Deven R. See; Yanhong Dong

doi:10.1094/PHYTO-02-17-0073-R

Genome-wide association mapping of Fusarium head blight resistance in spring wheat lines developed in the Pacific Northwest and CIMMYT

Rui Wang, Jianli Chen, James A. Anderson, Junli Zhang, Weidong Zhao, Justin Wheeler, Natalie Klassen, Deven R. See, Yanhong Dong

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26 Scopus citations

Abstract

Fusarium head blight (FHB) is a destructive disease of wheat in humid and semihumid areas of the world. It has emerged in the Pacific Northwest (PNW) in recent years because of changing climate and crop rotation practices. Our objectives in the present study were to identify and characterize quantitative trait loci (QTL) associated with FHB resistance in spring wheat lines developed in the PNW and the International Maize and Wheat Improvement Center. In total, 170 spring wheat lines were evaluated in field and greenhouse trials in 2015 and 2016. Fourteen lines showing consistent resistance in multiple environments were identified. These lines are valuable resources in wheat variety improvement of FHB resistance because they have no Sumai 3 or Sumai 3-related background. The 170 lines were genotyped using a high-density Illumina 90K single-nucleotide polymorphisms (SNP) assay and 10 other non-SNP markers. A genomewide association analysis was conducted with a mixed model (Q+K). Consistent, significant SNP associations with multiple traits were found on chromosomes 1B, 2B, 4B, 5A, 5B, and 6A. The locus on chromosome 5B for reduced deoxynivalenol content may be novel. The identified QTL are being validated in additional mapping studies and the identified resistant lines are being used in variety development for FHB resistance and facilitated by marker-assisted selection.

Original language	English (US)
Pages (from-to)	1486-1495
Number of pages	10
Journal	Phytopathology
Volume	107
Issue number	12
DOIs	https://doi.org/10.1094/PHYTO-02-17-0073-R
State	Published - Dec 2017

Bibliographical note

Funding Information:
We thank spring wheat breeders J. Dubcovsky, L. Talbert, and M. Pumphrey for their contributions to wheat lines used in this study; S. Reynolds for assistance in the phenotyping process; and J. M. Bonman and L. Talbert for reviewing the manuscript. This research was supported by the USDA-ARS U.S. Wheat and Barley Scab Initiative and the National Research Initiative Competitive Grants 2011-68002-30029 and 2017-67007-25939 from the USDA National Institute of Food and Agriculture.

Publisher Copyright:
© 2017 The American Phytopathological Society.

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@article{f2e43c231a794efd9d4b8ac1df3e01a8,

title = "Genome-wide association mapping of Fusarium head blight resistance in spring wheat lines developed in the Pacific Northwest and CIMMYT",

abstract = "Fusarium head blight (FHB) is a destructive disease of wheat in humid and semihumid areas of the world. It has emerged in the Pacific Northwest (PNW) in recent years because of changing climate and crop rotation practices. Our objectives in the present study were to identify and characterize quantitative trait loci (QTL) associated with FHB resistance in spring wheat lines developed in the PNW and the International Maize and Wheat Improvement Center. In total, 170 spring wheat lines were evaluated in field and greenhouse trials in 2015 and 2016. Fourteen lines showing consistent resistance in multiple environments were identified. These lines are valuable resources in wheat variety improvement of FHB resistance because they have no Sumai 3 or Sumai 3-related background. The 170 lines were genotyped using a high-density Illumina 90K single-nucleotide polymorphisms (SNP) assay and 10 other non-SNP markers. A genomewide association analysis was conducted with a mixed model (Q+K). Consistent, significant SNP associations with multiple traits were found on chromosomes 1B, 2B, 4B, 5A, 5B, and 6A. The locus on chromosome 5B for reduced deoxynivalenol content may be novel. The identified QTL are being validated in additional mapping studies and the identified resistant lines are being used in variety development for FHB resistance and facilitated by marker-assisted selection.",

author = "Rui Wang and Jianli Chen and Anderson, {James A.} and Junli Zhang and Weidong Zhao and Justin Wheeler and Natalie Klassen and See, {Deven R.} and Yanhong Dong",

note = "Funding Information: We thank spring wheat breeders J. Dubcovsky, L. Talbert, and M. Pumphrey for their contributions to wheat lines used in this study; S. Reynolds for assistance in the phenotyping process; and J. M. Bonman and L. Talbert for reviewing the manuscript. This research was supported by the USDA-ARS U.S. Wheat and Barley Scab Initiative and the National Research Initiative Competitive Grants 2011-68002-30029 and 2017-67007-25939 from the USDA National Institute of Food and Agriculture. Publisher Copyright: {\textcopyright} 2017 The American Phytopathological Society.",

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AU - Zhao, Weidong

AU - Wheeler, Justin

AU - Klassen, Natalie

AU - See, Deven R.

AU - Dong, Yanhong

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Genome-wide association mapping of Fusarium head blight resistance in spring wheat lines developed in the Pacific Northwest and CIMMYT

Abstract

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