Transcriptional convergence after repeated duplication of an amino acid transporter gene leads to the independent emergence of the black husk/pericarp trait in barley and rice. - Li, Bo; Jia, Yong; Xu, Le; Zhang, Shuo; Long, Zhoukai; Wang, Rong; Guo, Ying; Zhang, Wenying; Jiao, Chunhai; Li, Chengdao; Xu, Yanhao (Plant Biotechnology Journal, 2024)