Abstract:

For the seamless connection between rice breeding and rice germplasm resources, and the integration of conventional breeding technology and advanced applicable technology, our team has established rice core germplasm breeding theory and material collections. The rice core germplasm breeding theory includes the conception of rice core germplasm, corresponding hypothesis of ideal gene system and groundbreaking rice varieties, creation of the ideal model, comprehensive planning of background selection and foreground selection, DNA block of biological significances, data cloud of genotypes and phenotypes of rice core germplasm, research on comprehensive rice breeding by advanced and applicable technology, heterosis utilization of rice core germplasm. Huanghuazhan, Meixiangzhan and Huazhan core germplasm breeding materials were created, as well as the variety of Huanghuazhan with the largest growing area as indica rice in China, and the variety of Meixiangzhan 2 with excellent eating quality in China, the restore line of Huazhan with excellent combining ability in rice breeding history on the basis of rice core germplasm breeding theory.

Key words: rice, core germplasm, breeding

摘要：

为了实现水稻育种学和水稻种质资源学的无缝对接,常规育种技术与先进适用技术的有效融合,本团队创建了水稻核心种质育种理论和材料体系。水稻核心种质育种理论体系包括水稻核心种质概念、理想基因系统与突破性大品种对应假说、理想模型（模式）构建、前景选择与背景选择统筹、基因集的生物学意义、核心种质基因型和表现型云数据、先进适用综合育种方法研究和核心种质杂种优势利用八个部分。在此基础上培育了黄华占、美香占和华占核心种质育种材料体系等三套育种材料体系,育成了当前我国籼稻推广面积最大的品种黄华占、我国连续三届获得全国优质稻品种食味品质鉴评金奖唯一籼稻品种美香占2号和我国配组组合最多的恢复系华占等一大批优良品种（组合）。

关键词: 水稻, 核心种质, 育种