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Figure 9 | BMC Developmental Biology

Figure 9

From: Expression of pair rule gene orthologs in the blastoderm of a myriapod: evidence for pair rule-like mechanisms?

Figure 9

Schematic summary of PRG expression in the Glomeris blastoderm. (A) Early expression at the blastoderm stage. Note that the most anterior expression domain of h1 and the expression of pby-1 in the SAZ appear slightly later at stage 0.1. (B) Segmental expression at later stages. Double-headed arrows indicate splitting of initial double- (or triple-) segment wide expression domains into segmental stripes. Single-headed arrows indicate refinement of broad expression domains into a single segmental stripe of expression. Abbreviations: an, antennal segment; dyn., dynamic expression; eve, even-skipped; h1, hairy-1; md, mandibular segment; mx, maxillary segment; oc, ocular field; opa, odd-paired; pby-1, pairberry-1; pmd, premandibular segment; pmx, postmaxillary segment; pre-oc, pre-ocular region; run, runt; SAZ, segment addition zone; slp, sloppy paired; st, stage; T1-T2, first and second trunk segment. The grey bar indicates expression of the molecular landmark collier.

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