%0 Journal Article %T Physicochemical Characteristics and QTL Mapping Associated with the Lipid Content of High-Lipid Rice %A Na-Hye Kim %A Jae-Keun Sohn %A Kyung-Min Kim %J American Journal of Plant Sciences %P 1949-1953 %@ 2158-2750 %D 2013 %I Scientific Research Publishing %R 10.4236/ajps.2013.410241 %X
This study was conducted to examine the physicochemical characteristics and perform QTL mapping of genetic factors associated with the lipid content of rice. A rice strain with a high lipid content, ¡°P31-2-2-2-B-B¡±, was developed from mutants of ¡°Dongjin¡± created by T-DNA insertion. The lipid content of ¡°P31-2-2-2-B-B¡± brown rice was 4.42% whereas that of the donor cultivar ¡°Dongjin¡± was 2.56%. The total fatty acid content of the high-lipid mutant brown rice was 7.82% and that of ¡°Dongjin¡± was 3.43%. The unsaturated fatty acid composition of the mutant brown rice was 2.73% oleic acid, 2.74% linoleic acid, and 0.34% linolenic acid. In contrast, the fatty acid composition of the donor cultivar ¡°Dongjin¡± was 1.30% oleic acid and 0.99% linoleic acid. The percentage of unsaturated fatty acid to total fatty acid in the high-lipid mutant was higher