Fig. 1
- ID
- ZDB-IMAGE-071029-1
- Genes
- Publication
- Kallivretaki et al., 2007 - The zebrafish, brain-specific, aromatase cyp19a2 is neither expressed nor distributed in a sexually dimorphic manner during sexual differentiation
- All Figures
- Figures for Kallivretaki et al., 2007
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Fig. 1 cyp19a2 expression in the head of 20 days postfertilization (dpf) fish and histological evaluation of gonadal development. A: Mean normalized expression (MNE) of cyp19a2 expression in 20 dpf zebrafish. There are clearly two populations, namely the high and low expressing fish. B: Histological evaluation of the gonadal status of these fish. The germ cells are represented mainly by gonial cells (arrows) possessing a rather homogeneous, basophilic cytoplasm with usually one, centrally located nucleolus; the cytoplasm is restricted to a relatively small rim around the nucleus. These germ cells will probably differentiate into oocytes, because the gonads of juvenile zebrafish initially develop as nonfunctional protogynic ovaries (Maack and Segner, [2003]). However, because oocytes are not yet present, these gonads were classified as undifferentiated. Scale bar = 50 μm.