Gene expression mapping of the neuroectoderm across phyla – conservation and divergence of early brain anlagen between insects and vertebrates
- Department of Developmental Biology, Johann-Friedrich-Blumenbach Institute, University Goettingen, Germany
- Department of Evolutionary Developmental Genetics, Johann-Friedrich-Blumenbach Institute, University of Göttingen, Germany
Figures
Figure 1
Neuroectodermal gene expression in a beetle and vertebrates.
(A–F) Expression patterns of orthologous genes are shown for T. castaneum (I–III) and vertebrates (IV). The beetle data are based on Posnien et al., 2011b while the vertebrate data were compiled …
Figure 2
Mapping the insect head boundary (IHB) based on expression patterns of mid-hindbrain boundary (MHB) marker gene orthologs.
Comparison of gene expression patterns between insects (A) and vertebrates (B) along the anterior–posterior axis. The insect data are based on patterns found in both T. castaneum and D. melanogaster …
Figure 3
Molecular fate maps of insect and vertebrate neuroectoderm questions simple homology of eye and olfactory organs The expression domains of selected patterning genes are depicted in the left halves of a schematic mouse neural plate (A) and in beetles (B).
The beetle data represent two different stages of development corresponding to I and II of Figure 1B. A simplified fate map of the anterior neural plate is shown in the right half in A (for optic …
Figure 4
Alternative views on the subdivisions of the brain anlagen.
Mapping of brain regions by using expression patterns at the neuroectodermal stage from vertebrates (neural plate) (A) and insects (elongated germband stage) (B, C). For insects, alternative …
Additional files
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Supplementary file 1
Discussion of additional aspects and explanations for the data shown in the schematics.
- https://cdn.elifesciences.org/articles/92242/elife-92242-supp1-v1.pdf
