›› 2003, Vol. 46 ›› Issue (5): 649-954.doi:

• RESEARCH PAPERS • Previous Articles     Next Articles

Advances in insect picornavirus research

WANG Xiao-Chun, HU Yuan-Yang*, ZHANG Jia-Min   

  • Online:2003-10-20 Published:2003-10-20
  • Contact: HU YuanYang

Abstract: According to the characteristics of the genome structure of insect picornaviruses, they can be divided into three groups: infectious flacherie virus(IFV) group, cricket paralysis virus(CrPV) group and Acyrhosiphon pisum virus (APV) group. The initiation of protein translation of insect picornavirus is unique: independent of map structure, and initiation factors eIF1 and eIF1A and map combined protein eIF4E are not necessary; furthermore, the translation of capsid protein of CrPV group and APV group initiate from internal ribosome entry site and the initiation code is CUU. The paper also reviewed advances on replication mechanism of insect picornavirus and the phylogeny among insect, mammal and plant picornaviruses or icorna-like viruses.

Key words: insect, picornavirus, genome structure, phylogeny