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Parallels between the proximal-distal development of vertebrate and arthropod appendages: homology without an ancestor?
journal contribution
posted on 2023-06-07, 20:27 authored by Jose Pueyo-Marques, Juan Pablo CousoEvolutionary studies suggest that the limbs of vertebrates and the appendages of arthropods do not share a common origin. However, recent genetic studies show new similarities in their developmental programmes. These similarities might be caused by the independent recruitment of homologous genes for similar functions or by the conservation of an ancestral proximaldistal development programme. This basic programme might have arisen in an ancestral outgrowth and been independently co-opted in vertebrate and arthropod appendages. It has subsequently diverged in both phyla to fine-pattern the limb and to control phylum-specific cellular events. We suggest that although vertebrate limbs and arthropod appendages are not strictly homologous structures they retain remnants of a common ancestral developmental programme.
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Publication status
- Published
Journal
Current Opinion in Genetics and DevelopmentISSN
0959-437XExternal DOI
Issue
4Volume
15Page range
439-446Department affiliated with
- Biochemistry Publications
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All authors members of my labFull text available
- No
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- Yes
Legacy Posted Date
2012-02-06Usage metrics
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