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| Citation | Patel, M., Farzana, L., Robertson, L.K., Hutchinson, J., Grubbs, N., Shepherd, M.N., Mahaffey, J.W. (2007). The appendage role of insect disco genes and possible implications on the evolution of the maggot larval form. Dev. Biol. 309(1): 56--69. (Export to RIS) | ||
| FlyBase ID | FBrf0200405 | ||
| Publication Type | Research paper | ||
| PubMed ID | 17643406 | ||
| PubMed Abstract | Though initially identified as necessary for neural migration, Disconnected and its partially redundant paralog, Disco-related, are required for proper head segment identity during Drosophila embryogenesis. Here, we present evidence that these genes are also required for proper ventral appendage development during development of the adult fly, where they specify medial to distal appendage development. Cells lacking the disco genes cannot contribute to the medial and distal portions of ventral appendages. Further, ectopic disco transforms dorsal appendages toward ventral fates; in wing discs, the medial and distal leg development pathways are activated. Interestingly, this appendage role is conserved in the red flour beetle, Tribolium (where legs develop during embryogenesis), yet in the beetle we found no evidence for a head segmentation role. The lack of an embryonic head specification role in Tribolium could be interpreted as a loss of the head segmentation function in Tribolium or gain of this function during evolution of flies. However, we suggest an alternative explanation. We propose that the disco genes always function as appendage factors, but their appendage nature is masked during Drosophila embryogenesis due to the reduction of limb fields in the maggot style Drosophila larva. | ||
| DOI | 10.1016/j.ydbio.2007.06.017 | ||
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| Language of Publication | English | ||
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| Publication Type | Journal | ||
| Abbreviation | Dev. Biol. | ||
| Title | Developmental Biology | ||
| Publication Year | 1959- | ||
| ISBN/ISSN | 0012-1606 | ||
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Data from Reference
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