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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/nph.12017
|2 doi
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|a pubmed24n0742.xml
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|a (DE-627)NLM222674687
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|a (NLM)23157553
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Schaart, Jan G
|e verfasserin
|4 aut
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| 245 |
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|a Identification and characterization of MYB-bHLH-WD40 regulatory complexes controlling proanthocyanidin biosynthesis in strawberry (Fragaria × ananassa) fruits
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.05.2013
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|a Date Revised 08.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.
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|a Strawberry (Fragaria × ananassa) fruits contain high concentrations of flavonoids. In unripe strawberries, the flavonoids are mainly represented by proanthocyanidins (PAs), while in ripe fruits the red-coloured anthocyanins also accumulate. Most of the structural genes leading to PA biosynthesis in strawberry have been characterized, but no information is available on their transcriptional regulation. In Arabidopsis thaliana the expression of the PA biosynthetic genes is specifically induced by a ternary protein complex, composed of AtTT2 (AtMYB123), AtTT8 (AtbHLH042) and AtTTG1 (WD40-repeat protein). A strategy combining yeast-two-hybrid screening and agglomerative hierarchical clustering of transcriptomic and metabolomic data was undertaken to identify strawberry PA regulators. Among the candidate genes isolated, four were similar to AtTT2, AtTT8 and AtTTG1 (FaMYB9/FaMYB11, FabHLH3 and FaTTG1, respectively) and two encode putative negative regulators (FaMYB5 and FabHLH3∆). Interestingly, FaMYB9/FaMYB11, FabHLH3 and FaTTG1 were found to complement the tt2-1, tt8-3 and ttg1-1 transparent testa mutants, respectively. In addition, they interacted in yeast and activated the Arabidopsis BANYULS (anthocyanidin reductase) gene promoter when coexpressed in Physcomitrella patens protoplasts. Taken together, these results demonstrated that FaMYB9/FaMYB11, FabHLH3 and FaTTG1 are the respective functional homologues of AtTT2, AtTT8 and AtTTG1, providing new tools for modifying PA content and strawberry fruit quality
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis Proteins
|2 NLM
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|a Basic Helix-Loop-Helix Transcription Factors
|2 NLM
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|a Flavonols
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Proanthocyanidins
|2 NLM
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| 650 |
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|a proanthocyanidin
|2 NLM
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| 650 |
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|a 18206-61-6
|2 NLM
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| 700 |
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|a Dubos, Christian
|e verfasserin
|4 aut
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|a Romero De La Fuente, Irene
|e verfasserin
|4 aut
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|a van Houwelingen, Adèle M M L
|e verfasserin
|4 aut
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|a de Vos, Ric C H
|e verfasserin
|4 aut
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|a Jonker, Harry H
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Wenjia
|e verfasserin
|4 aut
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| 700 |
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|a Routaboul, Jean-Marc
|e verfasserin
|4 aut
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|a Lepiniec, Loïc
|e verfasserin
|4 aut
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| 700 |
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|a Bovy, Arnaud G
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 197(2013), 2 vom: 13. Jan., Seite 454-467
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:197
|g year:2013
|g number:2
|g day:13
|g month:01
|g pages:454-467
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|u http://dx.doi.org/10.1111/nph.12017
|3 Volltext
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|d 197
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|h 454-467
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