Abstract:
Duku Turak is a native fruit from Kuantan Singingi regency. This plant is mainly
distributed in three regions i.e. Cerenti, Gunung Toar and Benai District. Those populations are predicted as old populations and have morphological character variation. In spite of this, the information of duku Turak is limited. Therefore a detail exploration of this plant is important to be carried out. The aims of this study were to analyzed the variation of morphological characters and to determine the phylogenetic relationship of duku Turak. The method was carried out using exploration method. A total of 40 individuals from three study sites were examined, consisted of 15 individuals from Cerenti, 15 from Gunung Toar
and 10 from Benai. Fourty one morphological characters were scored to construct
cladogram. Thirty nine individuals out of 40 were grouped together in a clade, while one
individual of ingroup (Gunung Toar 12) was excluded and made a branch with outgroup.
The group in cladogram was not based on the origin population but mainly based on the
similarity of morphological character.
