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Pioneer Hi-Bred International Inc.
7100 NW 62nd Avenue
PO Box 1000
United States of America, 50131
Hybrid maize seed production requires crossing two inbred parent
lines to produce hybrid seed sold to growers. The female inbred
parent must be prevented from shedding pollen to avoid self-
pollination that reduces hybrid seed quality and compromises hybrid
The 32138 SPT maintainer is used as a pollinator to propagate the
seed of male-sterile female inbred parent lines.
The female inbred parent seed produced using this technology does
not contain the 32138 SPT insertion and consequently, hybrid seed
produced using these male-sterile female inbred parents does not
contain the 32138 SPT insertion and hence are non-transgenic for
The term Recipient organism refers to an organism (either already modified or non-modified) that was subjected to genetic modification, whereas Parental organisms refers to those that were involved in cross breeding or cell fusion.
- Agrobacterium-mediated DNA transfer
5126 anther-specific promoter
Brittle-1 gene Transit Peptide
DsRed2 Fluorescent Protein
Proteinase inhibitor II gene terminator
- Changes in physiology and/or production
- Selectable marker genes and reporter genes