Transformation
- Stable introduction, integration of foreign gene in an organism and its subsequent expression.
Steps
- Identification and isolation.
- Introduction
- Integration
- Selection and expression
- Regeneration
- Transmission (Progeny).
Methods of transformation
- Indirect method:
- Agrobacterium tumefaciens mediated:
- Direct method:
- Particle gun
- Electroporation
- Polyethylene glycol
- Micro injection
- Direct DNA Uptake by cells
- Ca-phosphate precipitation
- Liposome mediated DNA transfer