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expand all sections collapse all sections  Oryza sativa Gene "sk2"
ID 12191
Name sk2 (GENE SYMBOL)
Synonyms (8)
GRAMENE GENEGR:0060894
Type Gene
Species Oryza sativa (Oryza sativa) [ GR_tax:013681 ]
Germplasm
Description sk1 also called as fgr is linked to one of the most important traits in rice,
i.e. fragrance. This trait has undergone human selection during domestication.
The fragrance of basmati and jasmine rice is associated with the presence of 2-acetyl-1-
pyrroline. sk1 encodes for betaine aldehyde dehydrogenase (BAD). Compared to the
non-fragrant genotypes, the accumulation of 2-acetyl-1-pyrroline in fragrant
rice genotypes is due to the loss of BAD activity. The allele in fragrant
genotypes has a mutation introducing a stop codon upstream of key amino acid
sequences conserved in other BADs. Another fragrance related gene called BAD1 is
present on chromosome 4. The loss of function of SK1 does not affect the growth
of fragrant rice genotypes.
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