Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2007.561.567Nepenthes (Nepenthaceae)]]>SudmoonRunglawan TaneeTawatchai MokkamulPiya ChaveerachArunrat 42007104Nepenthes species are well known for their ornamentally attractive pitchers. The species diversity was randomly surveyed in some conservation areas of Thailand and three species were found, namely N. gracilis Korth., N. mirabilis Druce. and N. smilesii Hemsl. Young plants as unknown species from Chatuchak market were added in plant sampled set. Thirty two Inter Simple Sequence Repeat (ISSR) primers were screened and 13 successful primers were used to produce DNA banding patterns for constructing a dendrogram. The dendrogram is potentially power tool to identify unknown species from Chatuchak market, differentiate species population, population by geographical areas and sex determination. The geographical area of N. mirabilis was specified to Southern and Northeastern regions and finally, subdivided into exact areas according to province. Male and female plants of N. gracilis at Phu Wua Wildlife Sanctuary and N. mirabilis at Bung Khonglong non-hunting area were determined. Two unknown species from Chatuchak market were analyzed to be N. mirabilis with the genetic similarities (S) 77.2 to 84.7. Be more sex specific in all sample studied, 37 Random Amplified Polymorphic DNA (RAPD) primers were investigated. The result shows that only one RAPD primer show high resolution results at about 750 bp specific male-related marker.]]>Avise, J.C.,1994Pages: 511Pages: 511Chaveerach, A.R., H. Kunitake, S. Nuchadomrong, N. Sattayasai and H. Komatsu,2002Piper morphologically alike Japanese Piper.]]>28221226Chaveerach, A., A. Tanomtong, R. Sudmoon and T. Tanee,2006Nepenthes mirabilis.]]>61295298Clarke, C.,2002Durand, R. and B. Durand,19909295316Henderson, M.R.,1974Hooker, J.D.,1885Vol. 5,pp: 68-70pp: 68-70Irish, E.E. and T. Nelson,19891737744Jeppsson, N., I.V. Bartish and H.A. Persson,19991999pp: 338-341pp: 338-341Khadka, D.K., A. Nejidat, M. Tal and A. Golan-Goldhirsh,2005Mercurialis annua L.]]>22210631070Moran, J.A.,1996Nepenthes rafflesiana in Borneo.]]>84515525Nybom, H. and H.K. Hall,1991Robus cultivars and estimate their degree of relatedness.]]>53107114Ridley, H.N.,1967Shivas, R.G.,1984Smittinand, T.,19802nd Edn.,Soltis, D.E. and P.S. Soltis,19901st Edn.,Weier, T.E., C.R. Stocking, M.G. Barbour and T.L. Rost,1982Welsh, J., R.J. Honeycut, M. McClelland and B.W.S. Sorbral,199182473476Wolfe, A.D., Q.Y. Xiang and S.R. Kephart,1998Penstemon (Scrophulariaceae).]]>9551125115