Fragrance is an important index of rice quality. Consumers value high-quality fragrant rice. In this study, Badh2-1, a new functional molecular marker of Badh2, was designed for marker-assisted selection (MAS) of fragrant rice containing high levels of 2-acetyl-1-pyrroline (2AP). Badh2-1 MAS was then used to breed fragrant early-season two-line male sterile rice lines YuS-1 and YuS-5, restorer lines R66-1, R66-7, R66-15 and fragrant early-season hybrid rice varieties Yuliangyou 120, Yuliangyou 125 and Yuliangyou 130. Each of these contains 2AP in the range 414-734 ppb (ug/kg) and the hybrids e...
