Population genomics study for the conservation management of the endangered shrub Abeliophyllum distichum

Abstract Natural monuments are IUCN Category III protected areas that play an important role in biodiversity conservation as they provide species refuge and allow migration. Despite their status, natural often confined to cultural fragmented landscapes due anthropogenic land-use demands. In this population genomic study, we surveyed 11 populations of the endemic shrub Abeliophyllum distichum Nakai (Oleaceae), including five monument habitats, covering its range-wide distribution South Korea. Using 2,254 SNPs markers, our results showed a mean expected heterozygosity ( He ) 0.319, with central showing significantly higher than those at periphery. There was no significant heterozygote deficiency inbreeding among studied overall F IS = −0.098), except for single (GS-NM147). Population structure differentiation moderate high ST 0.196), while recent gene flow between appeared weak, which can be attributed outcrossing mating system heterostylous plant. Based on these findings, suggestions management endangered species.