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Gene transfer in cereals.

E C Cocking, M R Davey

    Science (New York, N.Y.)
    |June 5, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Plant genetic engineering now uses direct DNA uptake into protoplasts for cereals like rice, wheat, and maize. This method achieves transformation efficiencies comparable to older techniques, enabling efficient plant regeneration.

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    Area of Science:

    • Plant Biotechnology
    • Molecular Biology
    • Genetics

    Background:

    • Traditional plant gene transfer relied on sexual hybridization.
    • Plant genetic manipulation now includes recombinant DNA and protoplast fusion.
    • Agrobacterium tumefaciens is effective for dicotyledonous plants but not cereals.

    Purpose of the Study:

    • To explore alternative gene transfer methods for cereals.
    • To establish efficient genetic transformation in cereal crops.
    • To advance recombinant DNA technology in plant science.

    Main Methods:

    • Direct uptake of plasmid DNA into cereal protoplasts (rice, wheat, maize).
    • Utilizing protoplast fusion technology.
    • Developing improved plant regeneration procedures from protoplasts.

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    Main Results:

    • Successful gene transfer achieved in rice, wheat, and maize cells.
    • Transformation efficiencies in cereals are becoming comparable to dicotyledons.
    • Efficient regeneration of whole plants from rice protoplasts is now possible.

    Conclusions:

    • Direct DNA uptake into cereal protoplasts is a viable gene transfer method.
    • Advancements in protoplast regeneration are crucial for cereal transformation.
    • Gene transfer in cereals is advancing significantly with recombinant DNA technology.