Fig. 2

3195 bp including Meox1, Exon 1 are deleted in the squiggle tail variant. Bases shown in lower-case green are from the Meox1 promoter region, uppercase black letters are from Meox1, Intron 1–2. The upper boxed region represents Meox1, Exon 1; the 5’UTR is shown in white, the coding region is shown in green. Exon 2 of the lncRNA-encoding gene known as Gm11551, which lies entirely within Intron 1–2 of Meox1, is represented by a blue box (also see Fig. 1D). The number of base pairs that compose each segment is shown. A three-base direct repeat (5’-GAG-3’) found at the deletion breakpoint, a typical characteristic of spontaneous deletions in mammals [11], is underlined