Mapping interval (purple) on chromosome 1, and polymorphisms in the vicinity of the causal mutation (red). Green and blue lines indicate single nucleotide changes and deletions, respectively, shared with the parental Kro-0 strain. The middle section shows alignments of Illumina DNA sequence reads against the reference genome sequence, positions 21,714,424 to 21,714,504 (TAIR9). The amino acid sequence encoded by the reverse strand is given at bottom.