From lateral root density to nodule number, the strigolactone analogue GR24 shapes the root architecture of Medicago truncatula

European Union Seventh Framework Programme (EU-FP7-PIRSES-GA-2008–230830 LEGIM).J.F. is indebted to the Institut National de la Recherche Agronomique for a postdoctoral fellowship (Contrat Jeune Scientifique). C.D.C. is a predoctoral fellow of the Research Foundation-Flanders.