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Organisme vivant modifié (LMO)
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Identité de l’organisme vivant modifié
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Drought-tolerant, herbicide-tolerant, insect-resistant maize
EN
MON87460 × TC1507 × 59122
Oui
MON-8746Ø-4 × DAS-Ø15Ø7-1 × DAS-59122-7
The maize (Zea mays) was produced through cross breeding of modified parental maize lines for drought tolerance, herbicide tolerance and insect resistance. For abiotic tolerance, the maize expresses Bacillus subtillus cold shock protein to enhance natural abiotic (drought) stress responses. For herbicide tolerance, the maize expresses Streptomyces viridochromogenes phosphinothricin N-acetyltransferase, which inactivates glufosinate through acetylation. For Lepidoptera tolerance, the maize expresses Bacillus thuringiensis Cry1F. For Coleoptera resistance, the maize expresses B. thuringiensis Cry34Ab1 and Cry35Ab1. Additionally, the maize contains an Escherichia coli neomycin phosphotransferase II cassette for kanamycin selection, which was used during transformation of a parental line.
EN
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.
  • BCH-ORGA-SCBD-246-6 Organisme Zea mays (Maize, Corn, MAIZE)
    Cultures
  • BCH-LMO-SCBD-103066-6 Organisme vivant modifié MON-8746Ø-4 - Droughtgard™ Maize
    Résistance aux antibiotiques (Kanamycine, Néomycine), Tolérance au stress abiotique (Froid / chaleur, Sécheresse)
  • BCH-LMO-SCBD-14841-16 Organisme vivant modifié DAS-Ø15Ø7-1 - Herculex™ I maize
    Dow AgroSciences, Pioneer Hi-Bred International Inc. | Résistance aux maladies et aux parasites (Insectes, Chenille tisseuse (papillons et mites), Pyrale du maïs (Ostrinia nubilalis)), Résistance aux herbicides (Glufosinate)
  • BCH-LMO-SCBD-15165-13 Organisme vivant modifié DAS-59122-7 - Herculex™ RW Rootworm Protection maize
    Pioneer Hi-Bred International Inc. | Résistance aux maladies et aux parasites (Insectes, Coléoptères), Résistance aux herbicides (Glufosinate)
FR
Caractéristiques du processus de modification
PV-ZMAP595; PHI8999A; PHP17662
EN
  • Croisement
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.
  • BCH-GENE-SCBD-101416-7 Ti plasmid right border repeat | Agrobacterium tumefaciens (Agrobacterium)
    Plasmid vector
  • BCH-GENE-SCBD-100364-5 Rice actin 1 gene promoter | Oryza sativa (Rice, ORYSA)
    Promoteur
  • BCH-GENE-SCBD-100355-6 Rice actin 1, intron | Oryza sativa (Rice, ORYSA)
    Intron
  • BCH-GENE-SCBD-103065-7 Cold shock protein gene | Bacillus subtilis (Bacillus, BACIU)
    Séquence codante de protéines | Tolérance au stress abiotique (Froid / chaleur, Sécheresse)
  • BCH-GENE-SCBD-103067-9 Transcript 7 gene 3' untranslated region | Agrobacterium tumefaciens (Agrobacterium)
    Terminateur
  • BCH-GENE-SCBD-103069-3 loxP recombination site | Bacteriophage P1 (Phage P1)
    recombination site
  • BCH-GENE-SCBD-100287-7 CaMV 35S promoter | Cauliflower mosaic virus (CaMV)
    Promoteur
  • BCH-GENE-SCBD-15001-5 Neomycin Phosphotransferase II | Escherichia coli (ECOLX)
    Séquence codante de protéines | Résistance aux antibiotiques (Kanamycine)
  • BCH-GENE-SCBD-100269-8 Nopaline Synthase Gene Terminator | Agrobacterium tumefaciens (Agrobacterium)
    Terminateur
  • BCH-GENE-SCBD-101415-9 Ti plasmid left border repeat | Agrobacterium tumefaciens (Agrobacterium)
    Plasmid vector
  • BCH-GENE-SCBD-100362-7 Ubiquitin gene promoter | Zea mays (Maize, Corn, MAIZE)
    Promoteur
  • BCH-GENE-SCBD-103627-5 Ubiquitin Intron 1 | Zea mays (Maize, Corn, MAIZE)
    Intron
  • BCH-GENE-SCBD-14987-8 Cry1F | Bacillus thuringiensis (Bt, Bacillus, BACTU)
    Séquence codante de protéines | Résistance aux maladies et aux parasites (Insectes, Chenille tisseuse (papillons et mites))
  • BCH-GENE-SCBD-100363-5 ORF25 PolyA Terminator sequence | Agrobacterium tumefaciens (Agrobacterium)
    Terminateur
  • BCH-GENE-SCBD-15002-5 Phosphinothricin N-acetyltransferase | Streptomyces viridochromogenes (STRVR)
    Séquence codante de protéines | Résistance aux herbicides (Glufosinate)
  • BCH-GENE-SCBD-100290-6 CaMV 35S terminator | Cauliflower mosaic virus (CaMV)
    Terminateur
  • BCH-GENE-SCBD-14994-9 Cry34Ab1 | Bacillus thuringiensis (Bt, Bacillus, BACTU)
    Séquence codante de protéines | Résistance aux maladies et aux parasites (Insectes, Coléoptères)
  • BCH-GENE-SCBD-100367-4 Proteinase inhibitor II gene terminator | Solanum tuberosum (Potato, SOLTU)
    Terminateur
  • BCH-GENE-SCBD-100368-6 Peroxidase gene promoter | Triticum aestivum (Wheat)
    Promoteur
  • BCH-GENE-SCBD-14995-8 Cry35Ab1 | Bacillus thuringiensis (Bt, Bacillus, BACTU)
    Séquence codante de protéines | Résistance aux maladies et aux parasites (Insectes, Coléoptères)
DNA insert from MON87460 vector PV-ZMAP595
The T-DNA insert contains the following gene cassettes: Bacillus subtillus cold shock protein (cspB) and Escherichia coli neomycin phosphotransferase II (nptII). 

Transcription of cspB is under control of the Oryza sativa actin 1 promoter and Agrobacterium tumefaciens transcript 7 gene 3' untranslated region. The transcript initially contains an O. sativa actin 1 intron for enhanced gene expression of cspB. The sequence is removed (spliced) prior to protein translation. Constitutive expression of cspB is expected due to the actin promoter.

Transcription of nptII is under control of the Cauliflower mosaic virus (CaMV) 35S promoter and A. tumefaciens nopaline synthase terminator. High levels of transcription are expected due to the CaMV promoter.

Note:
- The coding sequence of cspB has been codon optimized for optimal expression within plant cells.
- Southern blot analysis indicated that no vector backbone sequences were inserted into the parental genome
- Southern blot analysis indicated that the parental genome contains a single insertion
- Sequencing analyses confirm the Southern blot analyses.
- A 22 base pair deletion of genomic DNA at the insert-to-plant DNA junction occurred.
- loxP sites can be found in the parental genome and could potentially allow for the excision of the nptII cassette by CRE recombinase.

DNA insert from TC1507 vector PHI8999A
DNA fragment PHI8999A contains two adjacent plant gene expression cassettes for Bacillus thuringiensis cry1F and Streptomyces viridochromogenes pat.

Transcription of cry1F is directed by the promoter and first exon and intron of the maize (Zea mays) ubiquitin gene and terminates at the Agrobacterium tumefaciens ORF25 terminator.

Transcription of the pat gene commences from the Cauliflower mosaic virus (CaMV) 35S promoter and ends at the CaMV 35S terminator.

Note:
- The coding sequence of both genes has been optimized to achieve a high level of expression in maize.
- The sequences of the complete cry1F and pat are identical to those in the original plasmid.
- The CRY1F protein includes the F604K (phenylalanine to lysine at position 604) amino acid substitution, which was introduced to create a specific restriction site for cloning purposes.

DNA insert from 59122 vector PHP17662:
Transcription of Bacillus thuringiensis cry34Ab1 starts at Zea mays ubiquitin gene promoter and terminates at the Solanum tuberosum proteinase inhibitor II gene terminator. Transcription of B. thuringiensis cry35Ab1 commences from the (Triticum aestivum (wheat) peroxidase gene promoter and stops at another S. tuberosum proteinase inhibitor II gene terminator.

Note:
- The coding sequence of cry34Ab1 and cry35Ab1  has been adapted to the codon usage in maize as to achieve optimal expression in planta.
- The cry34Ab1 and cry35Ab1 were cloned from B. thuringiensis strain PS149B1.
- Sequence analysis of 59122 done by the European Food Safety Authority indicated that this LMO contains one complete copy of the T-DNA of PHP17662 without internal rearrangements. All three gene cassettes, cry34Ab1, cry35Ab1 and pat, are intact within the transgenic event. The DNA sequences of the genes in 59122 are identical to those in the original plasmid except for two nucleotide differences in the wheat peroxidase promoter. At the 5' T-DNA end a deletion of 22 bp is observed and at the 3' T-DNA end a deletion of 25 bp is observed. The absence of vector backbone in maize 59122 was also demonstrated.

For more information, kindly refer to the parental LMO records.
EN
Caractéristiques de l’OVM
FR
  • Nourriture
  • Nourriture pour les animaux
Méthode(s) de détection
FR
Informations supplémentaires
FR
Les fichiers qui font référence à ce document Montré dans la recherche
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
Laboratoire pour la détection et d'identification des OVM OVM(s) détectable(s) par le laboratoire 1