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Co-expression of Multiple Chimeric Fluorescent Fusion Proteins in an Efficient Way in Plants
Published on: July 1, 2018
Inheritance of functional foreign genes in plants
Science (New York, N.Y.)
|February 3, 1984
Summary
Researchers successfully regenerated normal plants from Nicotiana plumbaginifolia cells using Agrobacterium tumefaciens. The plants carried a kanamycin resistance gene, which was inherited by their offspring in a Mendelian fashion.
Area of Science:
- Plant Biotechnology
- Molecular Biology
- Genetics
Background:
- Plant genetic transformation is crucial for crop improvement.
- Agrobacterium tumefaciens mediated transformation is a widely used method.
- Efficient regeneration of transformed plants is essential for practical applications.
Purpose of the Study:
- To regenerate morphologically normal plants from transformed Nicotiana plumbaginifolia cells.
- To confirm the presence and expression of a kanamycin resistance gene in regenerated plants.
- To investigate the inheritance pattern of the introduced gene.
Main Methods:
- Agrobacterium tumefaciens mediated transformation of Nicotiana plumbaginifolia cells.
- Regeneration of transformed plants on selective media.
- Southern hybridization analysis to detect the chimeric gene.
- Kanamycin sensitivity assays on leaf explants.
Main Results:
- Morphologically normal plants were regenerated from transformed cells.
- The presence of the chimeric kanamycin resistance gene was confirmed by Southern hybridization.
- Gene expression was validated by callus formation on kanamycin-containing media.
- Segregation of the foreign gene followed Mendelian inheritance patterns in progeny.
Conclusions:
- Agrobacterium tumefaciens mediated transformation is effective for generating kanamycin-resistant Nicotiana plumbaginifolia.
- The introduced gene is stably integrated and expressed, conferring resistance.
- The transformed plants exhibit normal morphology and transmit the gene to their offspring predictably.
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