【摘要】 谷子(Setaria italica)作为我国一种重要的杂粮作物,其健康和营养品质逐渐受到重视。随着生物技术的发展,由于其遗传特性和基因组小的特点,谷子逐渐成为遗传改良和功能基因组研究新的热点。本文概述了谷子不育系的选育过程及其在育种中的应用,并从不同水平阐释了谷子雄性不育产生的机理及相关基因研究,最后总结了谷子杂种优势利用的现状,并结合禾本科其他作物的研究成果对未来谷子杂种优势的研究做出展望,以期为谷子杂种优势利用及机理研究探寻可行的研究方向,奠定一定的理论基础。更多还原

【Abstract】 Foxtail millet(Setaria italica) isan important cereal crop in China, its nutritional qualities have been gradually attracted by people. With the development of biotechnology, foxtail millet has gradually become a new hot-spot in genetic improvement and functional genomic research, due to its hereditary features and small genome. In this paper, the breeding process and its application of the sterile line in millet are reviewed. Meanwhile, the formation of male sterility and related genes in millet are explained from different levels. Finally, the states of heterosis utilization in millet are summarized, and the future researches on the heterosis in millet are prospected consulting the results of other crops of Gramineae. The review can lay a theoretical foundation for study on utilization and mechanism of heterosis in foxtail millet.更多还原