Evolution and phylogenetic diversity of yam species(Dioscorea spp.): implication for conservation and agricultural practices

Fig. 3 Phylogenetic species diversity (PSV) for each yam species (Dioscorea spp.) from Cameroon. The letters c and w indicates the nature of the species with c for cultivated and w for wild.

图3 喀麦隆境内各薯蓣属（Dioscorea spp.）物种的系统发育物种多样性（Phylogenetic Species Diversity, PSV）。图中字母c与w用以区分物种属性，其中c代表栽培种，w代表野生种。