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PVY抗性基因eif4E-pvr2转化烟草的初步研究

Preliminary Study on Tobacco Transformed with PVY Resistant Gene eif4E-pvr2

  • 摘要: eif4E-pvr2基因是辣椒中的一种PVY抗性基因,与感病辣椒品种的eif4E基因只有两个碱基的差异。实验采用RT-PCR从感病材料中克隆得到感病的eif4E基因,再经过定点突变得到eif4E-pvr2基因,构建了抗性表达栽体pMEIF2301,并利用叶盘法转化烟草,经GUS和PCR检测,初步明确eif4E-pvr2基因已整合到烟草基因组中。

     

    Abstract: The eif4E-pvr2 gene is a PVY resistant gene in capsicum, the difference between eif4E-pvr2 gene and eif4E gene in susceptible capsicums is only two nucleotide bases. The susceptive eif4E gene was cloned with RT-PCR from susceptible capsicum, further, eif4E-pvr2 gene was obtained via point mutation, and resistant expression vector pMEIF2301 was constructed. Transformation was conducted with the infection of tobacco leaf discs. GUS and PCR test preliminarily proved that eif4E-pvr2 gene was integrated into tobacco genome.

     

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