Figure 4.

Maximum likelihood (ML) phylogenetic tree based on genome-wide SNPs.

The magenta clade contains E. fulvus (sky-blue star), and the blue clade includes accessions of S. officinarum (red star), S. robustum (green square), S. barberi (blue triangle), S. sinense (sky-blue triangle), and S. spontaneum (magenta circle). The red clade contains accessions of E. rockii (green star), the green clade contains N. porphyrocoma (red triangle), the sky-blue clade contains S. arundinaceum (green circle), and the yellow clade contains Miscanthus (red square and magenta star).