[Construction of a baculovirus transfer vector and expression of baculovirus-mediated gfp gene in larvae of Spodoptera litura].
To construct a novel baculovirus expression system of Spodoptera litura multicapsid nucleopolyhedrovirus, the 5' end and 3' end-flanking fragments of ph gene were amplified from the genome DNA of SpltMNPV, Japan-C3 strain using two pairs of primers synthesized according to SpltMNPV China-G2 strain genome DNA sequence published in GenBank. To obtain the transfer vector pSplt-gfp, the fragment of gfp gene was inserted into this vector between two fragments tandem linked into pUC18. The spli cells were cotransfected with pSplt-gfp and the wild SpltMNPV genome DNA. The recombinant virus containing gfp was selected with the limited dilution method. The fluorescence can be observed in the spli cells and the 3rd instar larvae after 24 and 48 hours by infection of the recombinant virus, respectively. The result showed that the recombinant virus was obtained successfully. It will be helpful to establish Spodoptera litura multicapsid nucleopolyhedrovirus expression system and more effective pesticide for Spodoptera litura.
Hu
Zhao-Li
ZL
Life Sciences School, Suzhou University, Suzhou 215006,China.
Wang
Wen-Bing
WB
Zhu
Jiang
J
Li
Xin-Ping
XP
Shen
Song-Dong
SD
D000818:Animals; D016367:Baculoviridae / Q000235:genetics; D018014:Gene Transfer Techniques; D005822:Genetic Vectors / Q000235:genetics* / Q000378:metabolism; D049452:Green Fluorescent Proteins / Q000096:biosynthesis / Q000235:genetics*; D007814:Larva / Q000235:genetics / Q000821:virology; D017924:Nucleopolyhedroviruses / Q000235:genetics*; D018411:Spodoptera / Q000235:genetics* / Q000821:virology*
D049452:Green Fluorescent Proteins