Identification and investigation of ORFans in the viral world
2008

Study of ORFans in Viruses

Sample size: 1456 publication Evidence: moderate

Author Information

Author(s): Yin Yanbin, Fischer Daniel

Primary Institution: University at Buffalo

Hypothesis

What is the percentage of ORFans in viruses and phages, how does it compare to the percentage of ORFans in bacteria, and how is this percentage related to the current phage sampling and to phage diversity?

Conclusion

The abundance of phage ORFans may be due to the vast viral diversity, and understanding them is crucial for viral evolution.

Supporting Evidence

  • Almost one-third of all ORFs in 1,456 complete virus genomes correspond to ORFans.
  • Viral ORFans are shorter and have a lower GC content than non-ORFans.
  • 38.4% of phage ORFs have no homologs in other phages.

Takeaway

This study looks at special genes in viruses that don't match any known genes, showing that there are many of these unique genes in viruses, especially in phages.

Methodology

Genome-wide identification and analysis of ORFans in 1,456 complete virus genomes.

Potential Biases

The sampling is biased towards well-studied bacterial phyla.

Limitations

The current sampling of viral genomes is extremely low and biased towards certain groups.

Participant Demographics

The study includes a diverse set of 1,456 virus genomes, including 280 phages.

Statistical Information

P-Value

p<2.2e-16

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2164-9-24

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