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PMID:11700289
| Citation |
Lall, S and Patel, NH (2001) Conservation and divergence in molecular mechanisms of axis formation. Annu. Rev. Genet. 35:407-37 |
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| Abstract |
Genetic screens in Drosophila melanogaster have helped elucidate the process of axis formation during early embryogenesis. Axis formation in the D. melanogaster embryo involves the use of two fundamentally different mechanisms for generating morphogenetic activity: patterning the anteroposterior axis by diffusion of a transcription factor within the syncytial embryo and specification of the dorsoventral axis through a signal transduction cascade. Identification of Drosophila genes involved in axis formation provides a launch-pad for comparative studies that examine the evolution of axis specification in different insects. Additionally, there is similarity between axial patterning mechanisms elucidated genetically in Drosophila and those demonstrated for chordates such as Xenopus. In this review we examine the postfertilization mechanisms underlying axis specification in Drosophila. Comparative data are then used to ask whether aspects of axis formation might be derived or ancestral. |
| Links |
PubMed Online version:10.1146/annurev.genet.35.102401.090832 |
| Keywords |
Animals; Body Patterning/genetics; Cell Polarity; Drosophila melanogaster/cytology; Drosophila melanogaster/embryology; Drosophila melanogaster/genetics; Female; Gene Expression Regulation, Developmental; Morphogenesis; Signal Transduction |
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Significance
Annotations
| Gene product | Qualifier | GO ID | GO term name | Evidence Code | with/from | Aspect | Notes | Status |
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