A Molecular Study of Microbe Transfer between Distant Environments
2008

Microbe Transfer Between Different Environments

Sample size: 1216 publication Evidence: high

Author Information

Author(s): Sean D. Hooper, Jeroen Raes, Konrad U. Foerstner, Eoghan D. Harrington, Daniel Dalevi, Peer Bork

Hypothesis

Can microbes be transferred between distant environments and survive?

Conclusion

The study found evidence that microbes can be transferred over large distances, particularly from soil to sea.

Supporting Evidence

  • The study identified 1,216 genes with closer hits in the foreign environment.
  • There was a significant over-representation of sea genes with atypical GC3s% values.
  • The results suggest a bias in microbial transfer from soil to sea.

Takeaway

Microbes can travel from one place to another, like from soil to the ocean, and leave behind their DNA even if they don't survive.

Methodology

The study analyzed nucleotide composition and gene similarities between metagenomic data from soil and sea environments.

Potential Biases

Potential biases in gene transfer directionality and environmental sampling.

Limitations

The study is limited to specific soil and sea samples and may not represent all environments.

Statistical Information

P-Value

p<10−13

Statistical Significance

p<10−13

Digital Object Identifier (DOI)

10.1371/journal.pone.0002607

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