About the cover: Temperate plants often require vernalization to flower, but genes involved in vernalization memory are very much unknown. In this issue, Huan et al. (pp. 696–709) performed transcriptome analyses in vernalization in Brachypodium distachyon seedlings using RNA-Seq, and uncovered a group of vernalization-related genes. Comparative analyses of vernalization-related genes in barley revealed several conserved and species-specific genes involved.