Figure 1.

A, Peninsular Malaysia depicting geographic distribution of populations from which E. longifolia accessions were collected. The geographic origin of materials propagated in tissue culture was not known. Although domesticated populations were similarly maintained on a plantation in southwest Malaysia, the geographic origins of the founders of this population were not known. B, Summary of SNP data for individual plants from six collections. Homozygosity and heterozygosity are indicated by color: blue, homozygous for the major allele; red, homozygous for the minor allele, green, heterozygous; white, no/inconclusive data, except in the final (summary) column for each population, where white indicates the presence of polymorphic loci within that population. C, Dendrogram from unweighted pair group method (UPGMA) cluster analysis based on the unbiased genetic distance in E. longifolia populations of Nei (1978). Color coding corresponds to populations as shown in A. D, Dendrogram from UPGMA cluster analysis based on the unbiased genetic distance between individuals of Nei (1978). Annotations indicate populations from which individuals originated: J, Johor, M, plantation grown; P, Pahang, TC, tissue culture collection; T, Terengganu; and L, Langkawi. E, Dendrogram from Ward's analysis of genetic distance between individuals.