Qualifications 

• MS., Entomology, Kasetsart University, Bangkok, Thailand.
• B.Sc., Agriculture Science (Entomology), Kasetsart University, Bangkok, Thailand.

Research interest
 Polydnavirus (PDV) are multiple close circular double-stranded segmented DNA virus associates with two families of endoparasitic wasps, Braconidae and Ichneumonidae. PDVs are integrated into the wasp genome and vertically transmitted into their progeny. Replication is restricted in the calyx tissue of the female wasp. PDV segments excise from the wasp chromosome and subsequently replicate then package virion in the calyx tissue. Parasitoids oviposit their eggs along with the PDV, calyx fluid protein and venom into their Lepidopteran host. PDV genes are transcribed in the target tissue of parasitized host resulting alter host physiology, prevent host development, suppression of host immune system, thus PDV play a major role for assist parasitoid successful complete life cycle. My research studies focus on
 

• Comparative genome organization of two different symbiotic polydnavirus, Campoletis sonorensis chnovirus (CsIV) and Micropletis demolitor Bracovirus (MdBV) through unique segments. 
• Identification and characterization of novel gene present on CsIV unique segment B and unique segment N 
• Identify integration and excision locus of Campoletis sonorensis Ichnovirus segment N and identify excision locus of CsIV segment B in the wasp chromosome

Memberships
Gamma Sigma Delta    1999
Entomological Society of America                 1999
American Society for virology                        2001- present 

Honors and Awards
First Prize: DOA Excellence Research Award of the year 1995. Department of Agriculture (DOA), Ministry of Agriculture and Co-operative, Bangkok, Thailand.
Third Prize: DOA Post harvest Research Award of the year 1998. Department of Agriculture, Ministry of Agriculture and Co-operative, Bangkok, Thailand.

Publications and Presentations

• W. Rattnadechakul and B.A.Webb. Molecular Analysis of Campoletis sonorensis Polydnavirus Unique Segment B. Poster (1999). Annual meeting of Entomology Society of America. Nashville, Tennessee.
• W. Rattandechakul and B.A.Webb. Excision of Campoletis sonorensis Ichnovirus segment B and Replicative Locus. Poster (2001). Annual Meeting of American Society for Virology. Madison, Wisconsin.
• U. Unahawutti, W. Worawisithumrong, R. Intragumheng, E. Samitrasiri, C. Lapasathukul,  M. Pumthong and C. Chetanachitara. 1995. Vapor Heat as a Quarantine Treatment for Controlling Oriental Fruit Fly and Melon Fly in Thai Mango before Exporting to Japan. Research Journal of Department of Agriculture. 120 pp. 
• U. Inahawutti, W. Rattanadechakul and P. Ornthonglang. 1998. Quarantine treatment: Effect of Vapor Heat on the Fruit Injury of Mangosteen. Research Journal of Department of Agriculture.