沈阳农业大学学报2016，Vol.47Issue(5)：520-526,7.
抗稻瘟病基因Pigm导入对寒地粳稻抗病性和产量性状的影响
Effect of Introgressed Pigm Gene on Rice Blast Resistance and Yield Traits of Japonica Rice in Cold Area
摘要
Abstract
In order to improve the blast resistance in japonica rice of Heilongjiang province, through marker-assisted selection (MAS), the broad-spectrum blast resistant gene Pigm from Gumei 4 (indica) was successfully introgressed into Kongyu 131, Longjing 26 and Kenjiandao 6. Through cross, backcross and self-pollination breeding, 12 lines containing Pigm gene introgression were obtained. Compared with recipient parent, the blast resistant introgression lines were greatly improved, with resistant frequency up to 98.4% and the minimum of 95.2%. At the same time, panicle blast resistance was also improved by the introgessed Pigm gene. Kongyu 131 panicle blast resistance changed from 7 to 1 level, Longjing 26 from 5 to 0-1 level, Kenjiandao 6 from 7 to 1-3 level. The yields of all Pigm gene introgression lines also changed. The plant height and grain number per panicle increased, but seed setting rate became lower. Among these introgression lines, the yields of 5 lines were improved, and these lines could be applied in rice blast resistant breeding.关键词
水稻/稻瘟病/抗稻瘟病育种/分子标记辅助选择/抗稻瘟病基因PigmKey words
rice/rice blast/breeding for resistance rice blast/marker-assisted selection/rice blast resistant gene Pigm分类
农业科技引用本文复制引用
田红刚,陈红旗,胡江,雷财林,朱旭东,钱前..抗稻瘟病基因Pigm导入对寒地粳稻抗病性和产量性状的影响[J].沈阳农业大学学报,2016,47(5):520-526,7.基金项目
国家自然科学基金项目(91535205)；国家＂973＂计划项目(2013CBA01401) （91535205）
