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Updated: Jul 25, 2026
06:19
In situ Protocol for Butterfly Pupal Wings Using Riboprobes
Published on: May 28, 2007
The development and evolution of crossveins in insect wings
1Department of Biology, Duke University, Durham NC 27708, USA. jmm12@duke.edu
Journal of Anatomy
|August 29, 2001
Summary
Environmental factors influence Drosophila crossvein development through intricate signaling pathways. A new three-stage model explains how these pathways regulate crossvein formation, impacting insect evolution.
Area of Science:
- Developmental Biology
- Evolutionary Biology
- Genetics
Background:
- Drosophila crossvein formation is a model for environment-development interactions.
- Signaling pathways, including heat shock factor Hsp90, are critical for crossvein development and environmental sensitivity.
Purpose of the Study:
- To present a new three-stage model for Drosophila crossvein development.
- To elucidate the specific signaling pathways involved in each stage of crossvein formation.
Main Methods:
- Analysis of signaling pathways controlling wing vein development in Drosophila.
- Modeling crossvein formation through proximal-distal axis signaling, dorsal-ventral epithelium induction, and vein-competent cell domain definition.
Main Results:
- Crossvein development is divided into three stages: number/placement (cdc42/Jun-N-terminal Kinase), induction (BMP-like signaling), and vein specification (EGF-receptor-Map Kinase/Notch-Delta).
- Components of these stages can be altered to regulate crossvein presence, number, placement, thickness, and flexibility.
Conclusions:
- The proposed model provides a framework for understanding the multi-stage regulation of Drosophila crossvein development.
- The capacity to modulate crossvein structure may have driven the evolution of diverse insect flight capabilities.
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