The contrary conservation situations of two local critically endangered species, Vaccinium emarginatum (Ericaceae) and Elatostema platyphyllum (Urticaceae), growing on the eastern edge of the distribution

As biodiversity loss continues, there is an urgent need to develop efficient conservation measures protect diversity with limited resources. Conservation targets have generally been selected based on their population size, but more detailed assessments clarifying the phylogenetic genetic status, history, and uniqueness of rare species crucial set appropriate effective measures. In Japan, Act Endangered Species Wild Fauna Flora designated endangered plants high priority, >40% these also grow overseas. We conducted comparative analyses ddRADseq MIG-seq evaluate status value Vaccinium emarginatum Elatostema platyphyllum which are growing across national borders at eastern edge distribution range. The revealed contrasting between two species; Japanese V. had lower individual level phylogenetically differentiated from Taiwanese populations, while that E. higher a relatively recent migrant little phylogenetical differentiation populations. species, share common feature being critically in showed genetic/phylogenetic characteristics. This study provided useful information for species’ traits diversity.