Development and Application of a Novel Functional Marker for Fragrance in Rice

Fragrant rice is favored worldwide by consumers and rice breeders, due to its full aroma and high nutritional value. Loss of function of the betaine aldehyde dehydrogenase gene (OsBADH2) leads to aroma in rice. Our previous sequencing results showed that fragrant rice Chuan 7 belongs to badh2-E14 type, with a 1 bp insertion mutation in exon 14 (Sun et al, 2021), and this allele mutation is mainly distributed in Nepal and India (Kovach et al, 2009).