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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15588
|2 doi
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|a pubmed25n0968.xml
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|a (NLM)30414191
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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 Sundaramoorthy, Jagadeesh
|e verfasserin
|4 aut
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| 245 |
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|a Biosynthesis of DDMP saponins in soybean is regulated by a distinct UDP-glycosyltransferase
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|c 2019
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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
|b cr
|2 rdacarrier
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|a Date Completed 27.02.2020
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a GENBANK: MH255998
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|a Citation Status MEDLINE
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|a © 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.
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|a 2,3-Dihydro-2,5-dihydroxy-6-methyl-4H-pyran-4-one (DDMP) saponins are one of the major saponin groups that are widely distributed in legumes such as pea, barrel medic, chickpea, and soybean. The steps involved in DDMP saponin biosynthesis remain uncharacterized at the molecular level. We isolated two recessive mutants that lack DDMP saponins from an ethyl methanesulfonate-induced mutant population of soybean cultivar Pungsannamul. Segregation analysis showed that the production of DDMP saponins is controlled by a single locus, named Sg-9. The locus was physically mapped to a 130-kb region on chromosome 16. Nucleotide sequence analysis of candidate genes in the region revealed that each mutant has a single-nucleotide polymorphism in the Glyma.16G033700 encoding a UDP-glycosyltransferase UGT73B4. Enzyme assays and mass spectrum-coupled chromatographic analysis reveal that the Sg-9 protein has glycosyltransferase activity, converting sapogenins and group B saponins to glycosylated products, and that mutant proteins had only partial activities. The tissue-specific expression profile of Sg-9 matches the accumulation pattern of DDMP saponins. This is the first report on a new gene and its function in the biosynthesis of DDMP saponins. Our findings indicate that Sg-9 encodes a putative DDMP transferase that plays a critical role in the biosynthesis of DDMP saponins
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Sg-9
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|a DDMP saponin
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|a DDMP transferase
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|a UDP-glycosyltransferase
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|a soybean (Glycine max)
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|a Genetic Markers
|2 NLM
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|a Mutant Proteins
|2 NLM
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|a Pyrans
|2 NLM
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|a Saponins
|2 NLM
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|a Glycosyltransferases
|2 NLM
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|a EC 2.4.-
|2 NLM
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|a Park, Gyu Tae
|e verfasserin
|4 aut
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|a Komagamine, Kumpei
|e verfasserin
|4 aut
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| 700 |
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|a Tsukamoto, Chigen
|e verfasserin
|4 aut
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|a Chang, Jeong Ho
|e verfasserin
|4 aut
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|a Lee, Jeong-Dong
|e verfasserin
|4 aut
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|a Kim, Jeong Hoe
|e verfasserin
|4 aut
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|a Seo, Hak Soo
|e verfasserin
|4 aut
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| 700 |
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|a Song, Jong Tae
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1984
|g 222(2019), 1 vom: 15. Apr., Seite 261-274
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:222
|g year:2019
|g number:1
|g day:15
|g month:04
|g pages:261-274
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|u http://dx.doi.org/10.1111/nph.15588
|3 Volltext
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|d 222
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|h 261-274
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