Biotechnology Bulletin ›› 2014, Vol. 0 ›› Issue (1): 143-146.

• Papers • Previous Articles     Next Articles

Study on Chinese Tomato Yellow Leaf Curl Virus-induced Gene Silencing(VIGS)via Root Absorption

Zhang Zhaojun, Wang Xiaobin, Wang Hui, Liu Lin, Zhang Xinge, He Xiuxia   

  1. College of Life Science,Changchun University of Science and Technology,Changchun 130022
  • Received:2013-09-18 Online:2014-01-23 Published:2014-01-23

Abstract: The tomato yellow leaf curl virus satellite DNA was used as vector which containing the Su gene, and transformed the plasmid into Agrobacterium by freeze thawing method. Agrobacterium infected plants via root absorption, and virus-induced gene silencing system was optimized, twexplore the influence to virus-induced gene silencing efficiency. The results showed infected 22-25 days tomato seedling via OD600 1.5 Agrobacterium-mediated root-absorption which containing plasmid pBinPLUS-2mβ-Su and pBinPLUS-1.7A, the silencing of Su gene resulted in photo-blcached young leaves of tomato plants. Semi-quantitative RT-PCR analysis was employed to test the effect of Su gene silencing, which showed that Su gene was degraed significantly. This gene-silencing system would benefit for the high-throughput analysis of plant gene.

Key words: Virus-induced gene silencing, Su gene, Root absorption method