Figure 1

Schematic presentation of Aa TTG1 and At TTG1 . A) Genomic regions of the TTG1 loci including the neighboring genes in A. alpina and A. thaliana. The black boxes represent the homologous flanking genes. The gene names used for A. alpina are derived from the corresponding A. thaliana genes by exchanging the “At” for A. thaliana to “Aa” for Arabis alpina. As the distance between genes differs in the two species they are shown with different types of dashed lines. B) Schematic presentation of the protein structures. The position of the WD40 domains was determined using the ELM [46]. Differences of amino acids between A. alpina and A. thaliana are indicated. The amino acid position changed in mutant alleles in A. alpina (this work) and A. thaliana[4] have been marked by boxes.