Development of "Multi-Resistance Rice" by Pyramiding of Insect (Cry1C) and Blast Resistance (Pi1 and Pi2) Genes  

作　　者：Xu Liu Hua Zhang Pingbo Li Mengqi Zhang Fang Liu Fangyin Yao 

机构地区：[1]Institute of Wetland Agriculture and Ecology,Shandong Academy of Agricultural Sciences,Jinan 250100,China

出　　处：《Plant Diseases and Pests》2021年第3期25-28,36,共5页植物病虫害研究（英文版）

基　　金：Supported by The Agricultural Seed Improvement Project of Shandong (2019LZGC017, 2019LZGC003);Agricultural Industry Research System (Rice) Project of Shandong Province (SDAIT-17-03);The Agricultural and Technology Innovation Project of Shandong Academy of Agricultural Sciences(CXGC2021A30)。

摘　　要：[Objective] The paper was to improve the blast resistance of insect-resistant transgenic rice. [Method] The Japonica rice variety Jikang10, a new transgenic variety with exogenous insect-resistant gene Cry1C, was used as the receptor, and Kongyu 131, a traditional breeding variety with broad-spectrum high blast resistance genes Pi1 and Pi2, was used as the donor to breeding new rice varieties. The genes were polymerized by hybridization and multi-generation backcrossing, and the offspring of each generation was screened by molecular marker assisted selection, field identification of multi-resistance against insect pests and diseases and agronomic trait selection. [Result] Four lines SK01, SK02, SK03 and SK04 with better resistances to insect pests and blast and outstanding agronomic traits in field were selected. [Conclusion] The results will lay foundations for breeding new multi-resistance rice varieties in Huanghuai rice region.

关 键 词：RICE Cry1C Pi1 Pi2 Gene polymerization Multi-resistance rice breeding 

分 类 号：S435.111.41[农业科学—农业昆虫与害虫防治]