Photosystem II Genes in Marine Cyanobacterial Viruses
Author Information
Author(s): Sullivan Matthew B, Lindell Debbie, Lee Jessica A, Thompson Luke R, Bielawski Joseph P, Chisholm Sallie W
Primary Institution: Massachusetts Institute of Technology
Hypothesis
How prevalent are both psbA and psbD in cyanophages that infect Synechococcus and/or Prochlorococcus?
Conclusion
Photosynthesis genes are common in cyanophages, and significant genetic exchanges occur between hosts and phages.
Supporting Evidence
- 88% of the phage genomes contain psbA.
- 50% of the phage genomes contain both psbA and psbD.
- Nearly all phages that encoded both psbA and psbD had broad host ranges.
- Significant sequence diversity was found in psbA and psbD genes from field populations.
Takeaway
Some viruses that infect ocean bacteria have genes that help them use sunlight, and they can share these genes with their hosts.
Methodology
The study screened 33 cultured cyanophages and viral DNA from field samples for the presence of psbA and psbD genes.
Potential Biases
Potential bias in sampling methods and the limited number of cultured isolates.
Limitations
The study may not capture all genetic diversity present in wild phage populations.
Participant Demographics
Cyanophages infecting marine cyanobacteria, specifically Prochlorococcus and Synechococcus.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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