Maize
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Crop:Maize
Maize
Species
Zea Mays
Trade Name
DP-32138-1 - 32138 SPT Maintainer
Event Name
event DP-056113-9
Method of Introduction
Agrobacterium-mediated DNA transfer
Year of Approval
2023-03-15
Gene
Modified to restore fertility to male-sterile maize lines and to facilitate hybrid maize seed production. The parental line is homozygous for the male-sterile Ms44 gene. To restore male-fertility, the maize expresses an artificial microRNA cassette to silence the Ms44 and allow for pollen production. To produce the male-sterile female hybrid lines for further seed production, the maintainer line is used as a pollinator. Pollen carrying the introduced constructs expresses maize alpha-amylase, which depletes the starch reserves in the nascent pollen and prevents germination
Gene Product
Changes in physiology and/or production (Reproduction, Male sterility), Selectable marker genes and reporter genes
Gene Function
Changes in physiology and/or production (Reproduction, Male sterility), Selectable marker genes and reporter genes
Traits
Changes in physiology and/or production (Reproduction, Male sterility), Changes in quality and/or metabolite content (Pigmentation / Coloration), Selectable marker genes and reporter genes
Developer
Corteva Agriscience RSA (Pty) Ltd
