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Fig. 5. Expression of Tu-pax3/7 in blastoderm stage embryos. (A,C,E,G,I)
Surface view of blastoderm stage embryos hybridised for Tu-pax3/7
RNA. (B,D,F,H,J) Deeper focal plane of blastoderm stage embryos hybridised for
Tu-pax3/7 RNA. (A,B) Tu-pax3/7 RNA is first expressed in
three stripes of cells across the ventral surface, corresponding to the
pedipalp segment, the second walking leg and the fourth walking leg. (C,D)
Expression of Tu-pax3/7 RNA becomes apparent in a stripe in the first
walking leg segment (asterisks). (E,F) Embryo with four detectable stripes of
Tu-pax3/7-expressing cells, corresponding to the pedipalps, the first
and second walking legs and the fourth walking leg. (G,H) Expression of
Tu-pax3/7 RNA becomes apparent in a stripe in the third walking leg
segment (asterisks). (I,J) Embryo with five detectable stripes of
Tu-pax3/7 expression, corresponding to all the segments of the
prosoma except the chelicera segment. A small stripe is also forming posterior
to the fourth walking leg segment (arrows). Tu-pax3/7 expression is
starting to disappear from cells in the centre of each stripe in the prosoma.
Scale bars: 50 µm. P, pedipalp; 1-4, walking legs. Anterior to the left,
dorsal up.
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