机构地区: 中山大学生命科学学院生物工程研究中心
出 处: 《西北植物学报》 1997年第2期142-146,共5页
摘 要: 利用JQ-700型高速基因枪将pDM302质粒DNA上的bar基因即PAT酶(phosphinothricinacetyltransferase)基因导入了冬小麦品种“农大146”的幼胚中。经过在含有phosphinothricin(简称ppt)的选择培养基上筛选,得到了9块具有ppt抗性的愈伤组织。PCR电泳检测与PCR-Southern杂交结果显示,外源bar基因已转化进了由其中4块愈伤组织再生出的转基因的小麦植株中。 The bar gene (phosphinothricin acetyltransferase gene) in plasmid pDM302 hadbeen transferred into the immature embryos of a winter wheat cultivar (Triticum aestivum L.) 'Nong Da 146' by microprojectile bombardment with JQ-700 system.Afterselection for 2-3 months,we have obtained 9 pieces ppt (phosphinothricin)-resistant calluses.PCR electrophoresis assay and PCR-Southern hybridization showed the foreignbar gene had been stably transformed into the genomes of the transgenic wheat plantletsregenerated from 4 of the 9 ppt-resistant calluses.