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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erab002
|2 doi
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|a pubmed25n1065.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Matros, Andrea
|e verfasserin
|4 aut
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| 245 |
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|a Genome-wide association study reveals the genetic complexity of fructan accumulation patterns in barley grain
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.05.2021
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|a Date Revised 21.05.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a We profiled the grain oligosaccharide content of 154 two-row spring barley genotypes and quantified 27 compounds, mainly inulin- and neoseries-type fructans, showing differential abundance. Clustering revealed two profile groups where the 'high' set contained greater amounts of sugar monomers, sucrose, and overall fructans, but lower fructosylraffinose. A genome-wide association study (GWAS) identified a significant association for the variability of two fructan types: neoseries-DP7 and inulin-DP9, which showed increased strength when applying a novel compound ratio-GWAS approach. Gene models within this region included three known fructan biosynthesis genes (fructan:fructan 1-fructosyltransferase, sucrose:sucrose 1-fructosyltransferase, and sucrose:fructan 6-fructosyltransferase). Two other genes in this region, 6(G)-fructosyltransferase and vacuolar invertase1, have not previously been linked to fructan biosynthesis and showed expression patterns distinct from those of the other three genes, including exclusive expression of 6(G)-fructosyltransferase in outer grain tissues at the storage phase. From exome capture data, several single nucleotide polymorphisms related to inulin- and neoseries-type fructan variability were identified in fructan:fructan 1-fructosyltransferase and 6(G)-fructosyltransferase genes. Co-expression analyses uncovered potential regulators of fructan biosynthesis including transcription factors. Our results provide the first scientific evidence for the distinct biosynthesis of neoseries-type fructans during barley grain maturation and reveal novel gene candidates likely to be involved in the differential biosynthesis of various types of fructan in barley
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a 6G-FFT
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|a Barley
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|a GWAS
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|a expression analysis
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|a fructans
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|a grain
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|a neoseries
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|a oligosaccharides
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|a ratio-GWAS
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|a Fructans
|2 NLM
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|a Hexosyltransferases
|2 NLM
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| 650 |
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|a EC 2.4.1.-
|2 NLM
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| 700 |
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|a Houston, Kelly
|e verfasserin
|4 aut
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|a Tucker, Matthew R
|e verfasserin
|4 aut
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|a Schreiber, Miriam
|e verfasserin
|4 aut
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|a Berger, Bettina
|e verfasserin
|4 aut
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|a Aubert, Matthew K
|e verfasserin
|4 aut
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|a Wilkinson, Laura G
|e verfasserin
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|a Witzel, Katja
|e verfasserin
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|a Waugh, Robbie
|e verfasserin
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|a Seiffert, Udo
|e verfasserin
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|a Burton, Rachel A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 72(2021), 7 vom: 29. März, Seite 2383-2402
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:72
|g year:2021
|g number:7
|g day:29
|g month:03
|g pages:2383-2402
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|u http://dx.doi.org/10.1093/jxb/erab002
|3 Volltext
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