The proposed Czech-Icelandic collaborative project has multiple aims. It will initiate a longterm collaboration between the Czech and Icelandic team (i.e. between Masaryk University and University of Iceland) in the field of plant cytogenomics. The planned mobility will extend expertise and skills of involved students and researchers through lectures and practical courses, and facilitate meeting of both teams and planning follow-up projects. Icelandic species of the mustard family (crucifers) were neglected thus far, partly due to the lacking expertise and technical infrastructure, and the remoteness of the island. During the project genome analysis of selected Icelandic crucifer species will be carried out. We expect to get novel data on the genome evolution of the unique Icelandic crucifer flora. The Icelandic team will carry out cytogenetic studies of Icelandic and European birch species (Betula) through state-of-the-art techniques implemented in collaboration with the Czech team.