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Acta Horticulturae Sinica ›› 2024, Vol. 51 ›› Issue (11): 2710-2724.doi: 10.16420/j.issn.0513-353x.2024-0075

• New Technology and New Method • Previous Articles     Next Articles

Construction of Virus-Mediated Genetic Transformation System of Camellia sinensis

HU Jinyu1, LIU Guizhi1, CHEN Lan1, HUANG Mengdi1, SU Qin1, TAN Yueping3, LIU Shuoqian1,2,*(), TIAN Na1,2,*()   

  1. 1 Key Laboratory of Tea Science of Ministry of Education,College of Horticulture, Hunan Agricultural University,Changsha 410128,China
    2 Department of Tea Science,College of Horticulture,Hunan Agricultural University,Changsha 410128,China
    3 Hunan Tea Group Co.,Ltd.,Changsha 410126,China
  • Received:2024-05-30 Revised:2024-07-16 Online:2024-12-12 Published:2024-11-26
  • Contact: LIU Shuoqian, TIAN Na

Abstract:

In this study,Camellia sinensis phytoene desaturase gene(CsPDS)and tea caffeine synthase gene(TCS1)as indicator genes and Nicotiana benthamiana as a vector were employed to enrich tobacco rattle virus. The effects of the concentration of infiltration solution,incubation temperature,different vectors and incubation time on the enriched viruses were investigated,with N. benthamiana used as the vector to enrich the viruses. The effects of different inoculation methods and cultivars on the construction of a virus-induced gene silencing(VIGS)system were also investigated in tea plant. The results demonstrated that inoculation of tobacco with acetosyringone(AS)at a concentration of 200 μmol · L-1 bacteriophage with an optical density(OD600)of 1.0 was conducive to virus enrichment in tobacco when incubated at 23 ℃. The leaves of‘Shuchazao’were used to construct the VIGS system of tea plant by injection inoculation, and the system was successfully used to explore the possibility of foreign gene expression with GFP as the indicator gene.

Key words: Camellia sinensis, virus-induced gene silencing, tobacco rattle virus, phytoene desaturase gene, caffeine synthase 1 gene, green fluorescent protein gene