Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Agriculturae Zhejiangensis》 2012-01
Add to Favorite Get Latest Update

Preliminary study on accelerated improvement of rice blast resistance of Luhui 602 using molecular marker-assisted selection

ZENG Zheng-ming,KUANG Hao-chi*,LUO Jun-tao,CHEN Guang-zhen,FU Jun,YANG Yang,HE Xing-cai(Rice and Sorghum Research Institute,Sichuan Academy of Agricultural Sciences,Luzhou Branch of National Rice Improvement Center,Deyang 618000,China)  
Luhui 602 is a heat resistant and high-power recovery line,but has less resistance to the rice blast.Rice blast resistance gene Pi9(t) showed a broad spectrum of strong resistance.In order to improve the resistance of Luhui 602,Oryza minuta which has Pi9(t) gene was carried as the anti-source,and Luhui 602 as the recipient and transmigrate parent through hybridization and resumption of diplomatic relations,and made it self-hybrid until BC3F1.The marker PB8 tightly linked to Pi9(t) was used to select in the separate groups combined with plant type,grain type,maturity and other agronomic traits similar to strains with Luhui 602.In BC3F4,15 plants were obtained with homozygous Pi9(t) gene and similar agricultural features to Luhui 602.Background selection was carried out with 120 pairs SSR primers,and six plants were screened out as the improved line of Luhui 602.Resistance of these 6 improved line were identified use 32 blast isolates collected in Sichuan Province,and the resistance frequency were 75.00%-87.50%,which identified that the resistance gene had been imported in Luhui 602 successfully and expressed.
【Fund】: 四川省农业科学院优秀论文基金项目(Nwjj1009);四川省农业科学院青年基金项目(Qnjjo911);; 泸州市重点科技项目(2010N23)
【CateGory Index】: S511
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 Tan Zhonghe Zan Taiyuan (Sichuan Academy of Agricultural Sciences)Ren Changfu (Southwestern Agricultural College)Fang Wen (Sichuan Academy of Agricultural Sciences);STUDIES ON HIGH TEMPERATURE INJURY ON HYBRID RICE AT FLOWERING TIME AND THE STRATEGY TO AVOID HIGH TEMPERATURE DAMAGE[J];Acta Agronomica Sinica;1985-02
2 KUANG Hao chi,WEN Shao shan,LIU Guo ming (Rice and Sorghum Research Institute,Sichuan Academy of Agricultural Sciences,Luzhou 646100,China);Studies on the heat tolerance of Luhui 17 and its cross II you 7 at head sprouting[J];Southwest China Journal of Agricultural Sciences;2002-01
3 Zhu Xingming;Zeng Qingxi;Ning Qingyi Institute of Rice, Sichuan Academy of Agricultural Sciences, Chengdu, Sichuan Province;EFFECT OF NATURAL HIGH TEMPERATURE ON FLOWERING AND FERTILIZATION IN HYBRID RICE[J];Scientia Agricultura Sinica;1983-02
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved