Journal
TRENDS IN PLANT SCIENCE
Volume 9, Issue 1, Pages 5-6Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2003.10.009
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The late blight fungus (Phytophthora infestans) rots susceptible species of potato plants. None of the major varieties of potato (Solanum, tuberosum) grown in the USA is resistant to US-8, the most prevalent genotype of the fungus. Now, Junqi Song, James Bradeen and colleagues have cloned the RB gene from the wild diploid potato species, Solanum bulbocastanum, using a map-based approach in combination with long-range PCR. Transgenic plants containing the gene, normally fully susceptible, displayed broad-spectrum late blight resistance.
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