Additional file 1.
Figure S1: Expression of Glomeris collier and Lithobius collier at the blastoderm stage (stage 0). A/a Bright field (A) and DAPI fluorescent (a) picture of the same Glomeris embryo showing expression at blastoderm stage. The asterisk in the DAPI stained embryo marks the cumulus. B/C Anterior expression in a closed ring in a blastoderm stage embryo of Glomeris (B) and Lithobius (C) respectively. D-F showing the same Glomeris embryo from different angles: ventral view (D), lateral view (E) and dorsal view (F). G-I showing the same Lithobius embryo from different angles: ventral view (G), lateral view (H) and dorsal view (I). Note that in both species dorsal expression is weaker, but in a broader domain. J-L Schematic drawing showing conserved ring-morphology of col expression in Glomeris and Lithobius at the blastoderm stage.
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Janssen et al. BMC Evolutionary Biology 2011 11:50 doi:10.1186/1471-2148-11-50