萝卜
生物
下胚轴
转化(遗传学)
农杆菌
根癌农杆菌
外植体培养
转基因作物
转化效率
植物
格斯报告系统
基因
转基因
遗传学
体外
作者
Naoki Muto,Kenji Kono,Takashi Matsumoto
出处
期刊:Plant Biotechnology
[Japanese Society for Plant Cell and Molecular Biology]
日期:2021-12-25
卷期号:38 (4): 457-461
被引量:5
标识
DOI:10.5511/plantbiotechnology.21.1021b
摘要
To investigate the gene function of radish (Raphanus sativus L.), several attempts have been made to generate genetically transformed radish. However, no efficient and relatively simple method for the genetic transformation of radish has been developed to date. In this study, we established an Agrobacterium-mediated genetic transformation method using the hypocotyl-derived explants of radish cultivar "Pirabikku". Primarily based on the Brassica transformation procedure, we optimized it for radish transformation. Using this system, the transformation efficiency of radish hypocotyl explants by Agrobacterium tumefaciens strain GV3101 harboring pIG121-Hm was 13.3%. The copy number of transfer DNA integrated into the genome was either one or two in the four independent transgenic plants. Two of the four plants exhibited male sterility and did not produce self-pollinated seeds. Examination of the expression of the β-glucuronidase (GUS) gene in T1 plants from fertile T0 plants showed that the GUS genes were inherited. The improvement in the genetic transformation in this study might pave the way for accelerated molecular breeding and genetic analysis of radish.
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