Article
Semidwarf (sd-1), "green revolution" rice, contains a defective gibberellin 20-oxidase gene.
Proceedings of the National Academy of Sciences of the United States of America - 25 Jun 2002
Spielmeyer Wolfgang, Ellis Marc H, Chandler Peter M
Abstract excerpt
The introduction of semidwarf rice (Oryza sativa L.) led to record yield increases throughout Asia in the 1960s. The major semidwarfing allele, sd-1, is still extensively used in modern rice cultivars. The phenotype of sd-1 is consistent with dwarfism that results from a deficiency in gibberellin (GA) plant growth hormones. We propose that the semidwarf (sd-1) phenotype is the result of a deficiency of active GAs...
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