Genome-wide association analysis on pre-harvest sprouting resistance and grain color in US winter wheat

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dc.contributor.author Lin, Meng
dc.contributor.author Zhang, Dadong
dc.contributor.author Liu, Shubing
dc.contributor.author Zhang, Guorong
dc.contributor.author Yu, Jianming
dc.contributor.author Fritz, Allan K.
dc.contributor.author Bai, Guihua H.
dc.date.accessioned 2017-11-30T21:32:06Z
dc.date.available 2017-11-30T21:32:06Z
dc.date.issued 2016
dc.identifier.uri http://hdl.handle.net/2097/38276
dc.description Citation: Lin, M., Zhang, D. D., Liu, S. B., Zhang, G. R., Yu, J. M., Fritz, A. K., & Bai, G. H. (2016). Genome-wide association analysis on pre-harvest sprouting resistance and grain color in US winter wheat. Bmc Genomics, 17, 16. doi:10.1186/s12864-016-3148-6
dc.description.abstract Background: Pre-harvest sprouting (PHS) in wheat can cause substantial reduction in grain yield and end-use quality. Grain color (GC) together with other components affect PHS resistance. Several quantitative trait loci (QTL) have been reported for PHS resistance, and two of them on chromosome 3AS (TaPHS1) and 4A have been cloned. Methods: To determine genetic architecture of PHS and GC and genetic relationships of the two traits, a genome-wide association study (GWAS) was conducted by evaluating a panel of 185 U.S. elite breeding lines and cultivars for sprouting rates of wheat spikes and GC in both greenhouse and field experiments. The panel was genotyped using the wheat 9K and 90K single nucleotide polymorphism (SNP) arrays. Results: Four QTL for GC on four chromosomes and 12 QTL for PHS resistance on 10 chromosomes were identified in at least two experiments. QTL for PHS resistance showed varied effects under different environments, and those on chromosomes 3AS, 3AL, 3B, 4AL and 7A were the more frequently identified QTL. The common QTL for GC and PHS resistance were identified on the long arms of the chromosome 3A and 3D. Conclusions: Wheat grain color is regulated by the three known genes on group 3 chromosomes and additional genes from other chromosomes. These grain color genes showed significant effects on PHS resistance in some environments. However, several other QTL that did not affect grain color also played a significant role on PHS resistance. Therefore, it is possible to breed PHS-resistant white wheat by pyramiding these non-color related QTL.
dc.relation.uri https://doi.org/10.1186/s12864-016-3148-6
dc.rights Attribution 4.0 International (CC BY 4.0)
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Triticum Aestivum
dc.subject Pre-Harvest Sprouting Resistance
dc.subject Grain Color
dc.subject Genome- Wide Association Studies
dc.subject Quantitative Trait Loci
dc.subject Triticum-Aestivum L.
dc.title Genome-wide association analysis on pre-harvest sprouting resistance and grain color in US winter wheat
dc.type Text
dc.date.published 2016
dc.citation.doi 10.1186/s12864-016-3148-6
dc.citation.issn 1471-2164
dc.citation.jtitle BMC Genomics
dc.citation.spage 16
dc.citation.volume 17
dc.citation Lin, M., Zhang, D. D., Liu, S. B., Zhang, G. R., Yu, J. M., Fritz, A. K., & Bai, G. H. (2016). Genome-wide association analysis on pre-harvest sprouting resistance and grain color in US winter wheat. Bmc Genomics, 17, 16. doi:10.1186/s12864-016-3148-6
dc.contributor.authoreid gbai
dc.contributor.authoreid akf
dc.contributor.authoreid gzhang
dc.description.version Article: Version of Record
dc.contributor.kstate Bai, Guihua H.
dc.contributor.kstate Fritz, Allan K.
dc.contributor.kstate Zhang, Guorong


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