Queried GO terms:

  idGO:0048762   Detailed information
  namemesenchymal cell differentiation
  def"The process in which a relatively unspecialized cell acquires specialized features of a mesenchymal cell. A mesenchymal cell is a loosely associated cell that is part of the connective tissue in an organism. Mesenchymal cells give rise to more mature connective tissue cell types." [GOC:dph, GOC:jid]
  is_aGO:0030154 ! cell differentiation
  relationshippart_of GO:0060485 ! mesenchyme development

No monarch genes has this GO term.