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Figure 2 | Frontiers in Zoology

Figure 2

From: Duplicated Hox genes in the spider Cupiennius salei

Figure 2

Expression pattern of the Cs-pb gene. (A) Limb bud stage, proboscipedia (pb) is expressed in the pedipalpal segment (Pp) and walking leg segments (L1-L4). The expression is most prominent in the appendages itself, but there is also some weaker expression in the ventral ectoderm (arrows). There is no expression in the cheliceral segment (Ch) or in the opisthosomal segments. (B) Inversion stage, pb is expressed in the appendages of the Pp and L1-L4 segments and in spots (arrowheads) in the ectoderm ventral to the appendages. Also at these older stages the cheliceral and opisthosomal segments are free of expression. Both embryos: ventral view.

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