Polyphenism is one of the most intriguing phenomenon observed from various insect species. Polyphenism is changing morphological, behavioral, and physiological phenotypes without changing genome informations. Therefore, polyphenism is thought to be controlled by epigenetic methods. Epigenetic controls are including DNA methylation, histone acetylation, small RNAs, long non-coding RNAs, and protein phosphorylation. To investigate the mechanism involved in polyphenism, various genomic researches have been completed. However, metabolite changes in different phases have not been reported yet. Thus, we studied the metabolite changes and found the changed metabolites. These studies will make an important contribution to reveal the difference between gregrious and solitary phases and reveal eco - friendly control techniques.

• Jong Bok Seo(Korea Basic Research Institute, Seoul Center, Seoul)
• Gwan Seok Lee(Department of Plant Protection, National Academy of Agricultural Science, RDA)
• JinKyo Jung(Department of Plant Protection, National Academy of Agricultural Science, RDA)
• Young Ho Koh(Department of Biomedical Gerontology, Hallym University)