COMPOSITUM 1 contributes to the architectural simplification of barley inflorescence via meristem identity signals Autor Naser Poursarebani, Corinna Trautewig, Michael Melzer, Thomas Nussbaumer, Udda Lundqvist, Twan Rutten, Thomas Schmutzer, Ronny Brandt, Axel Himmelbach, Lothar Altschmied, Ravi Koppolu, Helmy M. Youssef, Richard Sibout, Marion Dalmais, Abdelhafid Bendahmane, Nils Stein, Zhanguo Xin, Thorsten Schnurbusch