| 杨雪丽,付澳秋,欧旭华,等.高抗性淀粉水稻的遗传育种研究进展[J].广东农业科学,2025,(1-2):- |
| Research review of high resistant starch rice |
| 投稿时间：2024-04-11 修订日期：2024-11-19 |
| DOI： |
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| 摘要点击次数: 47 |
| 全文下载次数: 0 |
| Abstract: |
| As a new type of dietary fiber, resistant starch can control blood sugar and cholesterol levels and improve intestinal health, and has become a research hotspot in the field of functional food and crop genetics in recent years. Rice is an important food crop in China, and breeding rice varieties with high resistant starch is of great significance to improve the nutrition and health status of the people who depend on rice as their staple food and meet the demand for healthy life in the future. The content of resistant starch in rice is mainly regulated by a few major starch synthesizing genes and many minor genes, and the allelic combinations of different major genes also have significant effects on the content of resistant starch. At present, some rice varieties with resistant starch as high as 10% have been cultivated in production, but the increase of resistant starch content is often accompanied by the decrease of rice cooking taste quality, which seriously affects consumers' willingness to eat. It is the focus and difficulty of future research to cultivate high resistant starch rice varieties with good taste. At the same time, breeding multi-functional rice with multiple functional compound functions (such as high resistant starch, high anthocyanin or low protein, etc.) is also the future direction of resistant starch breeding. Gene editing, gene pyramiding and other biotechnological breeding methods combined with traditional cross breeding can improve the breeding efficiency of starch resistant rice varieties. In this paper, the types of resistant starch in rice, the main genes related to biosynthesis pathway and the progress of breeding of high resistant starch rice were reviewed, and the focus and direction of future research were prospected, in order to provide some reference for breeding and industrialization of high resistant starch rice. |
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