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The aim of this research was to generate selectable marker-free transgenic tomato plants with improved tolerance to abiotic stress. An estradiol-induced site-specific DNA excision of a selectable marker gene using the Cre/loxP DNA recombination system was employed to develop transgenic tomato constitutively expressing AtIpk2β, an inositol polyphosphate 6-/3-kinase gene from Arabidopsis thaliana. Transgenic...
Homozygous mice devoid of functional Prnp are resistant to scrapie and prion propagation, but heterozygous mice for Prnp disruption still suffer from prion disease and prion deposition. We have previously generated heterozygous cloned goats with one allele of Prnp functional disruption. To obtain goats with both alleles of Prnp be disrupted which would be resistant to scrapie completely, a second-round...
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