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|a 10.1093/jxb/ery178
|2 doi
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|a DE-627
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|a eng
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|a Sharma, Rajiv
|e verfasserin
|4 aut
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|a Genome-wide association of yield traits in a nested association mapping population of barley reveals new gene diversity for future breeding
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 28.10.2019
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|a Date Revised 28.03.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a To explore wild barley as a source of useful alleles for yield improvement in breeding, we have carried out a genome-wide association scan using the nested association mapping population HEB-25, which contains 25 diverse exotic barley genomes superimposed on an ~70% genetic background of cultivated barley. A total of 1420 HEB-25 lines were trialled for nine yield-related grain traits for 2 years in Germany and Scotland, with varying N fertilizer application. The phenotypic data were related to genotype scores for 5398 gene-based single nucleotide polymorphism (SNP) markers. A total of 96 quantitative trait locus (QTL) regions were identified across all measured traits, the majority of which co-localize with known major genes controlling flowering time (Ppd-H2, HvCEN, HvGI, VRN-H1, and VRN-H3) and spike morphology (VRS3, VRS1, VRS4, and INT-C) in barley. Fourteen QTL hotspots, with at least three traits coinciding, were also identified, several of which co-localize with barley orthologues of genes controlling grain dimensions in rice. Most of the allele effects are specific to geographical location and/or exotic parental genotype. This study shows the existence of beneficial alleles for yield-related traits in exotic barley germplasm and provides candidate alleles for future improvement of these traits by the breeder
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Fertilizers
|2 NLM
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|a Nitrogen
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|a N762921K75
|2 NLM
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|a Draicchio, Fulvia
|e verfasserin
|4 aut
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|a Bull, Hazel
|e verfasserin
|4 aut
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|a Herzig, Paul
|e verfasserin
|4 aut
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|a Maurer, Andreas
|e verfasserin
|4 aut
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|a Pillen, Klaus
|e verfasserin
|4 aut
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|a Thomas, William T B
|e verfasserin
|4 aut
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|a Flavell, Andrew J
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 69(2018), 16 vom: 18. Juli, Seite 3811-3822
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|x 1460-2431
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|g volume:69
|g year:2018
|g number:16
|g day:18
|g month:07
|g pages:3811-3822
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|u http://dx.doi.org/10.1093/jxb/ery178
|3 Volltext
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