摘要
以生产上广泛使用的光温敏感型核不育系广占63-2S为受体亲本,通过分子标记辅助选择,将广谱抗稻瘟病基因Pigm导入广占63-2S,育成新的抗稻瘟病光温敏感型核不育系扬籼3S,其除了具有广占63-2S开花习性好、配合力强的特点外,稻瘟病抗性明显提高,达到抗苗瘟、穗瘟病级1级的抗性水平。以扬籼3S为母本,以粒重高、品质优、配合力好、抗倒性强的恢复系扬恢916为父本,配组选育成两系杂交中籼新组合扬两优316,因其产量高、优质、抗稻瘟病、抗倒,2017年通过江苏省审定。此外,对利用分子标记辅助选择培育抗稻瘟病品种的策略进行了探讨。
The broad-spectrum blast resistance gene Pigm was introduced into the receptor parent Guangzhan 63-2 S,a widely used photoperiodic and thermo-sensitive male sterile line.Through marker-assisted selection（MAS）and conserved breeding selection,we developed a new photoperiodic and thermo-sensitive male sterile line named Yangxian 3 S.The new line keeps the excellent characteristics of Guangzhan 63-2 S,such as good flowering habits and strong combining ability.Compared to Guangzhan 63-2 S,the new line Yangxian 3 Sdisplayed well resistant level to blast disease,revealed great seedling blast resistance and the 1 score of panicle blast disease-resistant level.Yangxian 3 Swas used as female parent to cross with male parent Yanghui 916,a strong restorer line with high grain weight,good quality,good combining ability and lodging resistance,which leaded to a new two-line hybrid rice combination named Yangliangyou 316.Yangliangyou316 shows high yield,high quality,blast resistance,and lodging resistance,and was released by Jiangsu province in2017.The strategy of developing blast resistance variety using molecular marker-assisted selection was discussed.
作者
李育红
吴云雨
戴正元
肖宁
刘广青
张小祥
潘存红
周长海
王闯
孙业霞
朱兆兵
刘晓斌
李爱宏
LI Yuhong;WU Yunyu;DAI Zhengyuan;XIAO Ning;LIU Guangqing;ZHANG Xiaoxiang;PAN Cunhong;ZHOU Changhai;WANG Chuang;SUN Yexia;ZHU Zhaobing;LIU Xiaobin;LI Aihong(Nanjing Sub-Center of National Rice Improvement Center/ Lixiahe Agricultrue Researcch Institute of Jiangsu Provence,Yangzhou 225007,China)
出处
《扬州大学学报（农业与生命科学版）》
CAS
北大核心
2018年第3期52-57,共6页
Journal of Yangzhou University：Agricultural and Life Science Edition
基金
江苏省"333工程"科研项目(BRA2016145)
国家现代农业(水稻产业)技术体系建设专项(CARS-01-45)
扬州市水稻分子育种技术创新公共服务平台建设项目(YZ2017170)
关键词
水稻
光温敏感型核不育系
稻瘟病抗性
分子标记辅助选择
rice
thermo-sensitive mate sterile line
blast resistance
molecular marker-assisted selection
