Fig. 2

Distribution (a), GO (b), and KEGG (c) enrichment of DMG OGs among A. squarrosum and other plants. DMGs in the three previously studied species without homologous in A. squarrosum were combined into one category and labeled as ‘other plants’. The intersection of “other plants”, “AEX”, and “WW” resulted in 257 shared DMG OGs; the intersection of “AEX” and “WW” while “other plants” excluded resulted in 406 OGs that peculiar in A. squarrosum, and named as AS DMG; the 655 and 339 OGs unique in the two ecotypes were designated as AEX DMG and WW DMG, respectively. Figure 2b and c presented the biofunction prediction of the four non-overlapping DMG hierarchies, respectively. Noted that enrichment analyses were performed based on shared, AS, AEX, and WW DMG hierarchies, instead of all the DMG in each species. Thus, “extra” biofunctions compared to the previous hierarchy were presented in this figure