METHOD FOR INCREASING RESISTANT STARCH AND RICE DIETARY FIBER

The present invention discloses mutations in the starch synthase genes associated with enhanced dietary fibre and resistant starch levels in the endosperm of a suitable variety of rice. The dietary fiber and resistant starch are enhanced to an extent to significantly reduce the hydrolysis index values of the rice grains to 35-40%. These rice varieties are in great demand for diabetic population and provide a number of other health benefits such as reduced body weight gain， cardiac health and colon health. As this strategy does not involve the use of genetic manipulation technologies， it can be directly employed in the rice breeding programmes without any restrictions. The present invention discloses mutations in the starch synthase genes associated with enhanced dietary fibre and resistant starch levels in the endosperm of a suitable variety of rice. The dietary fiber and resistant starch are enhanced to an extent to significantly reduce the hydrolysis index values of the rice grains to 35-40%. These rice varieties are in great demand for diabetic population and provide a number of other health benefits such as reduced body weight gain， cardiac health and colon health. As this strategy does not involve the use of genetic manipulation technologies， it can be directly employed in the rice breeding programmes without any restrictions.

本发明公开了与适配水稻品种胚乳内膳食纤维及抗性淀粉水平提升相关的淀粉合酶基因突变体。通过提升膳食纤维与抗性淀粉含量，可将稻米籽粒的水解指数显著降至35%~40%。此类水稻品种深受糖尿病患者群体的青睐，同时可带来多项额外健康益处，包括抑制体质量增长、维护心血管健康与结肠健康。由于该技术方案未涉及基因操作技术，因此可直接应用于水稻育种项目且无任何限制。
本发明公开了与适配水稻品种胚乳内膳食纤维及抗性淀粉水平提升相关的淀粉合酶基因突变体。通过提升膳食纤维与抗性淀粉含量，可将稻米籽粒的水解指数显著降至35%~40%。此类水稻品种深受糖尿病患者群体的青睐，同时可带来多项额外健康益处，包括抑制体质量增长、维护心血管健康与结肠健康。由于该技术方案未涉及基因操作技术，因此可直接应用于水稻育种项目且无任何限制。