Evolutionary History of the ST8Sia Gene Family
Author Information
Author(s): Harduin-Lepers Anne, Petit Daniel, Mollicone Rosella, Delannoy Philippe, Petit Jean-Michel, Oriol Rafael
Hypothesis
The study investigates the origin and diversification of the ST8Sia gene family in vertebrates and invertebrates.
Conclusion
The ST8Sia gene family diversified through ancient duplications and translocations in the invertebrate genome, leading to the current expression patterns observed in vertebrates.
Supporting Evidence
- Thirty-five vertebrate ST8Sia sequences and twenty-seven invertebrate ST8Sia sequences were identified.
- Polysialylation appeared early in the deuterostome lineage.
- Two new subfamilies of ST8Sia were identified in osteichthyans.
- Gene loss and duplication events shaped the current ST8Sia gene family.
Takeaway
Scientists studied a family of genes that help make a special sugar found in animals, and they found that these genes changed a lot over time, especially in early animals.
Methodology
The study involved phylogenetic analysis, gene identification through BLAST searches, and expression profiling in zebrafish.
Statistical Information
P-Value
p<0.01
Digital Object Identifier (DOI)
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