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. 2018 Nov 19;13:58. doi: 10.1186/s13020-018-0215-8

Fig. 6.

Fig. 6

Neighbor-joining tree of the matK and rbcL genes from accessions belonged to Dioscorea Numbers at the nodes indicate bootstrap values (% over 1000 replicates). I (African and North America species) II (Asia species)