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. 2019 Jun 28;20:533. doi: 10.1186/s12864-019-5905-9

Fig. 6.

Fig. 6

Phylogenetic tree of VRN1 proteins in the Green Lineage. Plant VRN1 homologs only exist in dicotyledons and were subgrouped into the two clades: Group-I AtVRN1a/RTV1 and group-II AtVRN1b/1c/1d. B3 domain is the essential features of plant VRN1 proteins