IOWA STATE UNIVERSITY | DEPARTMENT OF AGRONOMY | OFFICE OF BIOTECHNOLOGY | PLANT SCIENCES INSTITUTE

Maize Genetic Transformation:
Agrobacterium-mediated


PTF Maize Transformation System:

Method optimized in PTF lab (Frame et al. 2002)
Target tissue: Immature zygotic embryo
Transformable genotypes: Hi Type II hybrid
Delivery means: Agrobacterium tumefaciens
Selection: the bar gene/bialaphos
Products Available: Plantlets, seed, callus
Protocol: please see Maize Agrobacterium Transformation Protocol

Bialaphos resistant event regenerating to produce plants


Transformation frequency:

7%

Transformation frequency is defined as the number of bialaphos resistant callus per 100 infected embryos.


Days from infection to transgenic seed shipment:

Transformation Activity Hi II B104
Embryo infection 1 1
Pick and bulk bialaphos resistant callus events 80 110
Regenerate transgenic plantlets to soil 120 140
Ship transgenic seed 250 270