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| Content Provider | PubMed Central |
|---|---|
| Author | Baonza, Antonio Roch, Fernando Enrique, Martín-blanco |
| Copyright Year | 2000 |
| Abstract | Arthropod and vertebrate limbs develop from secondary embryonic fields. In insects, the wing imaginal disk is subdivided early in development into the wing and notum subfields. The activity of the Wingless protein is fundamental for this subdivision and seems to be the first element of the hierarchy of regulatory genes promoting wing formation. Drosophila epidermal growth factor receptor (DER) signaling has many functions in fly development. Here we show that antagonizing DER signaling during the second larval instar leads to notum to wing transformations and wing mirror-image duplications. DER signaling is necessary for confining the wing subregion in the developing wing disk and for the specification of posterior identity. To do so, DER signaling acts by restricting the expression of Wingless to the dorsal-posterior quadrant of wing discs, suppressing wing-organizing activities, and by cooperating in the maintenance of Engrailed expression in posterior compartment cells. |
| Starting Page | 7331 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 13 |
| Volume Number | 97 |
| Language | English |
| Publisher | The National Academy of Sciences |
| Publisher Date | 2000-06-20 |
| Access Restriction | Open |
| Rights Holder | The National Academy of Sciences |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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