Eukaryote-to-eukaryote gene transfer gives rise to genome mosaicism in euglenids
2011
Gene Transfer and Genome Mosaicism in Euglenids
publication
Evidence: moderate
Author Information
Author(s): Maruyama Shinichiro, Suzaki Toshinobu, Weber Andreas PM, Archibald John M, Nozaki Hisayoshi
Hypothesis
How does eukaryote-to-eukaryote gene transfer contribute to the genome mosaicism observed in euglenids?
Conclusion
The study shows that euglenids have a complex genome mosaicism resulting from lateral gene transfer from various algal sources.
Supporting Evidence
- Euglena gracilis acquired at least 14 genes via lateral gene transfer from various algal sources.
- Phylogenetic analyses suggest that these genes are closely related to red algae and other secondary algae.
- Genome mosaicism in euglenids may have contributed to the successful integration of green algal endosymbionts.
Takeaway
Euglenids, a type of algae, have mixed genes from different algae, which helps them survive and thrive.
Methodology
The study analyzed an EST dataset of Euglena gracilis and constructed phylogenetic trees to identify laterally transferred genes.
Limitations
The study's conclusions are based on incomplete gene repertoires and limited taxon sampling.
Digital Object Identifier (DOI)
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