Phylogenetic tree of samples and geographic distribution. The phylogenetic tree of Oryza genotypes was constructed based on the chloroplast full sequence acquired from NCBI. RAxML program was used to draw a Maximum Likelihood (ML) tree with 1000 bootstraps. O. sativa cultivars were added separately to the tree to fully show the seed samples regardless of phylogenetic distance. The map indicates the diverse worldwide distribution of wild and domesticated Oryza spp.