Evolution of the Vertebrate Metzincins
Author Information
Author(s): Huxley-Jones Julie, Clarke Toni-Kim, Beck Christine, Toubaris George, Robertson David L, Boot-Handford Raymond P
Primary Institution: Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester
Hypothesis
When and how the level of complexity apparent in the vertebrate metzincin gene superfamily arose has not been determined in detail.
Conclusion
The complexity seen in the vertebrate metzincin gene families was mainly acquired during vertebrate evolution through the duplication of pre-existing genes rather than through de novo gene innovation.
Supporting Evidence
- 19 metzincin genes were identified in the Ciona genome and 83 in the zebrafish genome.
- Phylogenetic analyses reveal that the expansion of the metzincin gene superfamily in vertebrates has occurred predominantly by the simple duplication of pre-existing genes.
- The metzincin gene repertoire in protostomes and invertebrate deuterostomes has remained relatively stable.
Takeaway
Scientists studied genes related to metzincins, which help break down proteins in the body, to understand how these genes evolved in different animals. They found that many of these genes were created by copying existing ones over time.
Methodology
Comprehensive analysis of vertebrate metzincins using genes from Ciona intestinalis and Danio rerio.
Digital Object Identifier (DOI)
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