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Fig. 14 | EvoDevo

Fig. 14

From: Expression of NK cluster genes in the onychophoran Euperipatoides rowelli: implications for the evolution of NK family genes in nephrozoans

Fig. 14

Comparison of the segment polarity patterns of expression of Msx, Lbx, NK1, NK4 and Tlx in the onychophoran E. rowelli and the annelid Platynereis dumerilii. Diagram of P. dumerilii modified from Ref. [19]. The cavities of somites (= coelomic cavities) are labeled with asterisks. Note that the somites are shifted anteriorly in P. dumerilii, while they align with transverse furrows (arrowheads) in E. rowelli. A, B Note that the expression of Msx, Lbx and NK1 is restricted to the mesoderm in E. rowelli, whereas Msx, Lbx and NK4 show additional ectodermal segment polarity domains in P. dumerilii

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