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Organisme vivant modifié
(LMO)
L’image ci-dessous identifie l’OVM par son identificateur unique, son nom commercial et un lien vers cette page du Centre d’échange Cliquer dessus pour télécharger une plus grande image sur votre ordinateur Pour du soutien sur comment utiliser, aller dans la page de liens rapides OVM.
Herbicide-tolerant sugar beet
EN
KWS20-1
Oui
KB-KWS2Ø1-6
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Organisation :Bayer CropScience Deutschland GmbH ()Secteur privé (affaires et industrie)Bayer CropScience AG Alfred-Nobel-Str. 50 40789 Monheim am RheinMonheim am Rhein,
40789,Téléphone : +49 21 73 - 38-0,Télécopieur :E-mail : -
- Organisation : KWS SAAT SE & Co. KGaA / PLANTA Applied Plant Genetics and Biotechnology GmbH () | BCH-CON-DE-104960-3Organisation :KWS SAAT SE & Co. KGaA / PLANTA Applied Plant Genetics and Biotechnology GmbH ()Secteur privé (affaires et industrie)Grimsehlstraße 31Einbeck,
37574,Téléphone : +49 5561-3110,Télécopieur : +49 5561-311322,E-mail : info@kws.de,Site Web : https://www.kws.com, https://www.kws.com/de/de/,
The sugar beet (Beta vulgaris L.) was modified to confer tolerance to three herbicides: dicamba, glufosinate, and glyphosate. To confer tolerance to 2-methoxy-3,6-dichlorobenzoic acid (dicamba), the LM sugar beet expresses the Stenotrophomonas maltophilia dicamba mono-oxygenase, which degrades dicamba via oxygenation into non-herbicidal compounds. To achieve tolerance to glufosinate, the LM sugar beet expresses the phosphinothricin N-acetyltransferase from Streptomyces viridochromogenes, which inactivates the herbicidal compound through acetylation. To achieve tolerance to glyphosate, the LM sugar beet expressed the 5-enolpyruvylshikimate-3-phosphate synthase from Agrobacterium sp. strain CP4, an enzyme insensitive to glyphosate inhibition. The bacterial enzyme does not bind the herbicide glyphosate with high affinity (unlike the endogenous 5-enolpyruvylshikimate-3-phosphate synthase) and thus allows for the continued biosynthesis of aromatic amino acids through the shikimate pathway in the sugar beet during glyphosate applications.
Le terme « organisme récepteur » désigne un organisme (non modifié ou déjà modifié) ayant fait l'objet d'une modification génétique, tandis que les « organismes parentaux » désignent les organismes impliqués dans un croisement ou une fusion cellulaire pour générer un organisme modifié.
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BCH-ORGA-SCBD-12097-5 Organisme Beta vulgaris (Common beet, Sugarbeet, BETMA)Cultures
Sugar beet breeding line 04E05B1DH05
EN
PV-BVHT527462
EN
- Transgénèse par agrobacterium
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Certains de ces éléments génétiques peuvent être présents sous forme de fragments ou sous forme tronquée. Veuillez consulter les notes ci-dessous, s’il y a lieu.
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BCH-GENE-SCBD-100365-6 Chloroplast transit peptide 2 | Arabidopsis thaliana (Thale cress, Mouse-ear cress, Arabidopsis, ARATH)Séquence signal
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BCH-GENE-SCBD-14979-7 5-enolpyruvylshikimate-3-phosphate synthase gene | Agrobacterium tumefaciens (Agrobacterium)Séquence codante de protéines | Résistance aux herbicides (Glyphosate)
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BCH-GENE-SCBD-258886-1 Hypothetical protein 3' untranslated region | Medicago truncatula (Barrelclover, Strong-spined medick, Barrel medic, Barrel medick, MEDTR)Terminateur
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BCH-GENE-SCBD-263018-2 Dahlia mosaic virus enhancer | Dahlia mosaic virus (DMV, 9VIRU, DaMV)Enhancer
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BCH-GENE-SCBD-280808-2 SAM2 promoter | Cucumis melo (Melon, Melons)Promoteur
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BCH-GENE-SCBD-280809-1 Ubiquitin promoter | Cucumis melo (Melon, Melons)Promoteur
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BCH-GENE-SCBD-103616-4 rbcS Transit Peptide | Pisum sativum (Garden pea, PEA)Séquence signal
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BCH-GENE-SCBD-100728-3 Dicamba monooxygenase gene | Stenotrophomonas maltophilia (S. maltophilia, Stenotrophomonas)Séquence codante de protéines | Résistance aux herbicides
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BCH-GENE-SCBD-114687-1 Chlorophyll a/b binding protein 1 promoter | Arabidopsis thaliana (Thale cress, Mouse-ear cress, Arabidopsis, ARATH)Promoteur
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BCH-GENE-SCBD-15002-5 Phosphinothricin N-acetyltransferase | Streptomyces viridochromogenes (STRVR)Séquence codante de protéines | Résistance aux herbicides (Glufosinate)
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BCH-GENE-SCBD-272458-1 Heat shock protein 20 terminator | Medicago truncatula (Barrelclover, Strong-spined medick, Barrel medic, Barrel medick, MEDTR)Terminateur
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BCH-GENE-SCBD-101416-7 Ti plasmid right border repeat | Agrobacterium tumefaciens (Agrobacterium)Plasmid vector
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BCH-GENE-SCBD-101415-9 Ti plasmid left border repeat | Agrobacterium tumefaciens (Agrobacterium)Plasmid vector
The modified sugar beet contains three genetic cassettes expressing Stenotrophomonas maltophilia dicamba mono-oxygenase (dmo), Streptomyces viridochromogenes phosphinothricin N-acetyltransferase (pat), and Agrobacterium sp. strain CP4 5-enolpyruvylshikimate-3-phosphate synthase (cp4 epsps).
(1) The cp4 epsps gene is regulated by the SAM2-Cm1 promoter from Cucumis melo, which includes its native 5′ untranslated leader and intron to enhance transcription. A chloroplast transit peptide from Arabidopsis thaliana is fused to the N-terminus of the CP4 EPSPS coding sequence to direct the transport of the protein to the chloroplast. Transcription is terminated by the Medicago truncatula guf-Mt1 terminator. Because of the constitutive promoter, high expression is expected in a wide range of plant tissues.
(2) The dmo gene is expressed under the control of a ubiquitin promoter from Cucumis melo, preceded by an enhancer fragment from Dahlia mosaic virus. A Rubisco small subunit transit peptide is fused to the N-terminus of the DMO coding sequence, directing the enzyme to plastids. Transcription is terminated by a guf-Mt2 terminator from Medicago truncatula.
(3) The pat gene is regulated by a chlorophyll a/b binding protein promoter from Arabidopsis thaliana, which drives strongest expression in green photosynthetic tissues. The pat coding sequence, is terminated by the Medicago truncatula hsp20 terminator.
(1) The cp4 epsps gene is regulated by the SAM2-Cm1 promoter from Cucumis melo, which includes its native 5′ untranslated leader and intron to enhance transcription. A chloroplast transit peptide from Arabidopsis thaliana is fused to the N-terminus of the CP4 EPSPS coding sequence to direct the transport of the protein to the chloroplast. Transcription is terminated by the Medicago truncatula guf-Mt1 terminator. Because of the constitutive promoter, high expression is expected in a wide range of plant tissues.
(2) The dmo gene is expressed under the control of a ubiquitin promoter from Cucumis melo, preceded by an enhancer fragment from Dahlia mosaic virus. A Rubisco small subunit transit peptide is fused to the N-terminus of the DMO coding sequence, directing the enzyme to plastids. Transcription is terminated by a guf-Mt2 terminator from Medicago truncatula.
(3) The pat gene is regulated by a chlorophyll a/b binding protein promoter from Arabidopsis thaliana, which drives strongest expression in green photosynthetic tissues. The pat coding sequence, is terminated by the Medicago truncatula hsp20 terminator.
Note
- Molecular analyses detect the absence of plasmid sequences and demonstrated that event KWS20-1 contains a single intact T-DNA insertion at one locus, which includes the full-length cassettes for dmo, pat, and cp4 epsps;
- No extraneous plasmid backbone sequences, such as the bacterial aadA marker gene, were detected in the genome;
- Southern blotting, PCR, and sequencing confirmed that the insert is stably inherited across multiple generations according to Mendelian principles;
- Expression studies confirmed that all three intended proteins are produced; dmo and cp4 epsps are expressed in both root and leaf tissue, while pat expression is very low or undetectable in root tissue.
FR
- Nourriture
- KB-KWS2Ø1-6 - EU Reference Laboratory for GM Food and Feed (EURL-GMFF) ( JRC ) [ English ]
FR
FR
- EUginius: KWS20-1 sugar beet detailed information (KB-KWS2Ø1-6) [URL] [ English ]
- OECD Biotrack database: KB-KWS2Ø1-6 [URL] [ English ]
- FSANZ: A1303 Food derived from herbicide-tolerant sugar beet line KWS20-1 [URL] [ English ]
- FSANZ: Safety assessment A1303 - Food derived from herbicide-tolerant sugar beet line KWS20-1 [PDF] ( Food Standards Australia New Zealand ) [ English ]
- GM Crops & Food: Risk assessment of homologous variants of biotech trait proteins using a bridging approach [PDF] ( Biotechnology in Agriculture and the Food Chain ) [ English ]
- ISAAA GM approval database: Crop event KWS20-1 (International Service for the Acquisition of Agri-biotech Applications) [URL] [ English ]
| Type de fichier | Champs | Fichier(s) : | |
|---|---|---|---|
| Décision de pays ou tout autre communication | Identification de l'OVM | 2 | |
| Évaluation des risques générée par un processus de réglementation | Organisme(s) vivant(s) modifié(s) | 2 | |