This promoter family is "Gmubi"

The "Gmubi" promoter family was selected based on similarities in the protein-coding 
region of the gene. Gmubis1-9 encode perfect tetrameric repeats of the ubiquitin monomer. 
Gmubis1-7 are intron-containing while Gmubis8-9 do not contain introns. Gmubi10 is a 
promoter for a ubiquitin monomer.  Extensive characterization of a slightly truncated form 
of Gmubi3  is described in:

CM Hernandez-Garcia, AP Martinelli, RA Bouchard, JJ Finer (2009): A soybean (Glycine max) 
polyubiquitin promoter gives strong constitutive expression in transgenic soybean. 
Plant Cell Rep 28:837-849