Phylogenetic analysis of Shorea Genus in University of North Sumatra Campus, Indonesia, based on matK genes

Shorea is one of the genera in the Dipterocarpacea family with a very large number of species. Shorea tree species have high economic and ecological value. Currently more than 100 species of Shorea are in the endangered category. Taxonomic aspects as well as information on biological characteristics are one of the important bases of species conservation or restoration activities. The University of North Sumatra campus is one of the green open spaces that can be used as an ex-situ conservation location. This study aims to determine the types of trees of the Shorea genus on the North Sumatra University campus and their kinship based on phylogenetic analysis. It is necessary to identify the Shorea species on the USU campus using the current taxonomic method using phylogeny analysis. Sequences of the identified Shorea species were collected from the NCBI (National Center for Biotechnology Information) web, then edited the data and constructed a phylogenetic tree using Meng X.1. In this study found 4 types of Shorea, namely Shorea parvifolia (Meranti Sarang Punai), Shorea laevis (Bangkirai), Shorea macrophylla (Tengkawang Tungkul) and Shorea leprosula. Shorea leprosula species are separated from other Shorea groups. This indicates that Shorea leprosula is closely related to other Shorea. Meanwhile, Shorea macrophylla and Shorea parvifolia are closely related because they are in one cluster, with a boostrap value of 85%.