Tempo and mode of early gene loss in endosymbiotic bacteria from insects
2006
Early Gene Loss in Endosymbiotic Bacteria from Insects
Sample size: 5
publication
Evidence: moderate
Author Information
Author(s): Delmotte F, Rispe C, Schaber J, Silva FJ, Moya A
Hypothesis
Is gene loss in endosymbiotic bacteria driven by the selective importance of genes?
Conclusion
Gene loss in early stages of symbiosis is influenced by selection, with highly conserved genes being retained more than lowly conserved ones.
Supporting Evidence
- Genes lost early in symbiosis were less selectively constrained than conserved genes.
- Gene loss was biased towards low CAI genes early in symbiosis.
- Significant correlations were found between gene loss and evolutionary rates.
Takeaway
This study looks at how some bacteria lose genes over time, especially when they live inside insects, and finds that important genes are more likely to stick around.
Methodology
Analyzed five endosymbiotic genome sequences and used a parsimony method to reconstruct a minimal ancestral genome.
Limitations
The study did not include two recently completed genomes from insect-associated endosymbionts.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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