Production and Characterization of Transgenic indica Rice Plants Carrying Maize Ac-Ds Elements Introduced by Particle Bombardment.
نویسندگان
چکیده
منابع مشابه
Isolation of the transposable maize controlling elements Ac and Ds.
Restriction endonuclease fragments containing part of the Waxy (Wx) locus have been cloned from strains with insertion mutations at the locus caused by the controlling elements Activator (Ac) and Dissociation (Ds). Evidence is presented that the genetically defined Ac element corresponds to a 4.3 kb insertion, while the two Ds elements correspond to 4.1 kb and 2.0 kb insertions, all near the 3'...
متن کاملChromosome breakage by pairs of closely linked transposable elements of the Ac-Ds family in maize.
Chromosome breaks and hence chromosomal rearrangements often occur in maize stocks harboring transposable elements (TEs), yet it is not clear what types of TE structures promote breakage. We have shown previously that chromosomes containing a complex transposon structure consisting of an Ac (Activator) element closely linked in direct orientation to a terminally deleted or fractured Ac (fAc) el...
متن کاملTransgenic plant production using particle bombardment in Egyptian barley
A system for Egyptian barley (Hordeum vulgare L. cv Giza 123) transformation via biolistic bombardment has been established. Immature embryos 1.0-1.5 mm in length were aseptically isolated from barley plants cultivated in the open field. Embryos were then cultured on callus induction medium with scutellum side up. Scutellum derived calli were bombarded with the plasmid pAHC25, containing the ma...
متن کاملShort communication Assessment of transgenic maize events produced by particle bombardment or Agrobacterium-mediated transformation
Particle bombardment and Agrobacterium-mediated transformation are two popular methods currently used for producing transgenic maize. Agrobacterium-mediated transformation is expected to produce transformants carrying fewer copies of the transgene and a more predictable pattern of integration. These putative advantages, however, tradeoff with transformation efficiency in maize when a standard b...
متن کاملTransposition of the maize activator element in transgenic rice plants.
Transposition of the maize Activator (Ac) element was observed in transgenic rice. After protoplast transformation, Ac excision from an interrupted hygromycin phosphotransferase gene was monitored by appearance of the hygromycin-resistant colonies. The frequency of Ac excision, based on the biological assay was up to 19%. Southern hybridization analysis indicated that at least one copy per geno...
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ژورنال
عنوان ژورنال: Plant Biotechnology
سال: 1998
ISSN: 1347-6114,1342-4580
DOI: 10.5511/plantbiotechnology.15.87