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Fig. 6 | EvoDevo

Fig. 6

From: Formation of body appendages during caudal regeneration in Platynereis dumerilii: adaptation of conserved molecular toolsets

Fig. 6

Expression of Pdu-Pbx1/exd during caudal regeneration of Platynereis dumerilii (16 dpa). In situ hybridizations, anterior is to the left for (a–d). a Ventral view of the regenerated posterior end. The red line marks the site of amputation. Regenerated tissues are to the right. Pdu-Pbx1/exd is expressed in the posterior growth zone region and the coelothel of forming and maturing segments (blue staining in the trunk). b Cells at the base and in the proximal part of the anal cirri express Pdu-Pbx1/exd (white arrows). c, d Broad subepidermal Pdu-Pbx1/exd expression in developing notopodia. Black brackets mark expression in the dorsal cirri. e–g Optical transverse sections of segments in different phases of maturation with focus on parapodia. (ac) anal cirri, (dc) dorsal cirrus, (nep) neuropodium, (nop) notopodium, (pb) parapodial bud, (pp) parapodia, (vc) ventral cirrus. Scale bar equals 200 µm

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