RAPD patterns as a useful tool to differentiate Thai Piper from morphologically alike Japanese Piper

Abstract

Two species of Piper native to Japan, namely P. kadsura (Choisy) Ohwi and P. retrofractum Vahl were studied in comparison with P. chaba Hunt, a species found in Thailand. Relations among these three Piper species were compared using similarity indexes from morphological investigations and RAPD analysis. Based on morphology, the similarity indexes of the pairs: P. chaba Hunt and P.