Optimum™ Intrasect XTRA maize

The stacked maize line DAS-Ø15Ø7-1 x DAS-59122-7 x MON-ØØ81Ø-6 x MON-ØØ6Ø3-6 was obtained through the traditional cross breading of each of the parental organisms to produce a maize that expresses each of Cry1F, PAT, Cry34Ab1, Cry35Ab1, Cry1Ab and EPSPS genes. The expression of these genes are expected to confer resistance to Lepidoptera and Coleoptera, and tolerant to glufosinate herbicide and glyphosate herbicide.

PHI8999A, PHP17662, PV-ZMGT32, PV-ZMBK07 and PV-ZMGT10

DNA insert from MON810, vectors PV-ZMBK07 and PV-ZMGT10
MON810 contains a truncated portion of a synthetic form of the cry1Ab gene from Bacillus thuringiensis subsp. kurstaki. Two constructs PV-ZMBK07 and PV-ZMGT10 have been used for transformation, but molecular analyses showed that MON810 does not contain any element from PV-ZMGT10 construct and only the elements from construct PV-ZMBK07 have been integrated into its genome. MON810 contains one integrated DNA consisting of P-e35S, I-Hsp70 and cry1Ab. The terminator of the nopaline synthase (nos) gene was lost due to a truncation at the 3' end of the gene cassette during genome integration and is, therefore, not present in MON810.

DNA insert from 59122 vector PHP17662
The cry34Ab1 and cry35Ab1 genes, isolated from the common soil bacterium Bacillus thuringiensis (Bt) strain PS149B1, produce the insect control proteins (delta-endotoxins) Cry34Ab1 and Cry35Ab1. The pat gene was isolated from the soil bacterium Streptomyces viridochromogenes and confers tolerance to herbicides containing glufosinate ammonium.

DNA insert from TC1507 vector PHI8999A
The TC1507 line contained the Cry1F and PAT coding sequences and regulatory elements. The Cry1F gene produces insecticidal crystal protein that confers resistance against lepidopteran pests and the PAT gene produces Phosphinothricin N-acetyltransferase which confers tolerance to the glufosinate herbicide.

DNA insert from NK603 vector PV-ZMGT32
NK603 also contains a form of the plant enzyme 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) that allows the plant to survive the otherwise lethal application of glyphosate. The glyphosate-tolerant EPSPS gene was isolated from the CP4 strain of the common soil bacterium Agrobacterium tumefaciens.

For additional information on this LMO, please refer to the records of the parental LMOs.