Elevated proline content in maize plants expressing a fragment of the proline dehydrogenase gene in antisense orientation
2012
Moiseeva, E. M. | Agafonov, D. A. | Velikov, V. A. | Volokhina, I. V. | Chumakov, M. I.
A fragment of the first exon of the proline dehydrogenase gene of arabidopsis (Arabidopsis thaliana L.) in antisense orientation was transferred to maize (Zea mays L.) genome by agrobacterial transformation in planta to elevate the content of free proline in maize cells. The presence of genetic structure carrying an antisense sequence of the fragment of the proline dehydrogenase gene (ASPG) from the genome of diploid maize seedlings was corroborated by PCR method. T-DNA insertions comprising ASPG were found in the genomes of 30 plants (1.2% of 2409 examined seedlings) belonging to the generation T0. A reliable 4.6-fold increase in proline content was registered in the leaves of transformed maize plants.
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