edited by Jesus V. Jorrin-Novo, Department of Biochemistry and Molecular Biology, University of Cordoba, Cordoba, Spain, Setsuko Komatsu, National Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan, Wolfram Weckwerth and Stefanie WienKoop, Department of Ecogenomics and Systems Biology, University of Vienna, Vienna, Austria