空间诱变后大豆对草甘膦的耐性研究  

GLYPHOSATE TOLERANCE OF SOYBEAN MUTANT GAINED AFTER BOARDING ON SATELLITE

作　　者：蒋凌雪[1,2] 刘章雄[1] 任洪雷[1,2] 金龙国[1] 张洪岩[1,2] 郭勇[1] 陶波[2] 邱丽娟[1] 

机构地区：[1]中国农业科学院作物科学研究所,北京100081 [2]东北农业大学农学院,黑龙江哈尔滨150030

出　　处：《核农学报》2011年第5期844-850,共7页Journal of Nuclear Agricultural Sciences

基　　金：油料作物空间环境诱变育种关键技术研究与示范(2008BAD97B04);国家航天育种工程项目(发改高技[2003]138号)

摘　　要：以实践8号育种卫星搭载的5个大豆品种SP2和SP3代为材料,在田间喷洒1.31 a.i.kg.ha-1草甘膦条件下鉴定其耐性种质的表型变异特点。结果表明,无论是品种间还是品种内,诱变后代对草甘膦的耐性都存在差异,以株高和成熟期变异最为明显,可作为耐性种质筛选的指标。其中,中品661的SP3代对草甘膦耐性最强,从中筛选到1株耐性突变体,与对照表型无差异。航天诱变不同大豆品种后代对草甘膦的耐性存在差异,且能够遗传,说明航天诱变可作为大豆耐草甘膦育种的新途径。Glyphosate-tolerant germplasm and genetic variation characteristics of SP2 and SP3 of soybean varieties boarded on Shijian No.8 satellite were analyzed after treated by herbicide glyphosate in the field.Abundant variations of traits were produced,and the resistance within and among cultivars were different in their offspring of space mutagenesis.Plant height and maturity were used as index to screen glyphosate tolerant materials.Space mutation increased of soybean 661 SP3 of Zhongpin,and one glyphosate-resistance variant was screened from Zhongpin 661 SP3.It showed that glyphosate tolerance was different among offspring of different space mutagenesis soybean materials.It is feasible to systemically screen elite traits soybean by applying space mutation breeding.

关 键 词：大豆 航天诱变 草甘膦耐性 

分 类 号：S565.1[农业科学—作物学]