Multicellular living organisms and unmodified parts thereof and – Method of introducing a polynucleotide molecule into or... – Involving particle-mediated transfecion
Patent
1995-06-30
1999-11-30
Robinson, Douglas W.
Multicellular living organisms and unmodified parts thereof and
Method of introducing a polynucleotide molecule into or...
Involving particle-mediated transfecion
800205, 800DIG24, 435470, A01H 104, C12N 1500
Patent
active
059946261
ABSTRACT:
The invention relates to improved transformation and regeneration of alfalfa, Medicago sativa.
A method is used to transform alfalfa by using particle acceleration. Optimum results with mature cotyledons occurs when bombarding after 24 to 120 hours of imbibing water. Regeneration and transformation of alfalfa is greatly improved by using immature cotyledons or embryos of immature cotyledons for transformation and regeneration. Immature cotyledons include those up to about 25 days past pollination, and preferably include cotyledons excised at 10-15 days past pollination, most preferably including those excised at about 10 days past pollination. These cotyledons have a light green to translucent appearance. Plants resulting from bombardment of somatic embryos of immature cotyledons retain regeneration ability.
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Desagagnes, R., et al., 1995 "Genetic Transformation of Commercial Breeding Lines of Alfalfa (Medicago sativa)", Plant Cell Tiss. Org. Cult. 42: 129-140.
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Buising Charisse Marie
Tomes Dwight
Kimball Melissa L.
Pioneer Hi-Bred International
Robinson Douglas W.
Sweeney Patricia
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