Figure 3
From: Onychophoran Hox genes and the evolution of arthropod Hox gene expression
Anterior borders of Ek-Hox3 , Ek-Scr, Ek-Dfd and Ek-ftz expression. A) Ek-Hox3 expression in sp and L1. Asterisk marks anterior border of expression in the middle of the slime papilla (sp) segment (cf. Eriksson et al. 2010). B) Expression of Ek-Dfd extends to the anterior of the L1 segment (cf. Eriksson et al. 2010). C) Ek-Scr. Asterisk marks anterior border of expression in the middle of the L1 segment. D) Ek-ftz. Asterisk marks anterior border of expression in the middle of the L2 segment. Abbreviations as in Figure 1. Dashed lines indicate segmental borders.