Silent Rain : Does the atmosphere-mediated connectivity between microbiomes influence bacterial evolutionary rates?
Jalasvuori, M. (2020). Silent Rain : Does the atmosphere-mediated connectivity between microbiomes influence bacterial evolutionary rates?. Fems Microbiology Ecology, 96(7), Article fiaa096. https://doi.org/10.1093/femsec/fiaa096
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Fems Microbiology EcologyAuthors
Date
2020Discipline
Solu- ja molekyylibiologiaBiologisten vuorovaikutusten huippututkimusyksikköCell and Molecular BiologyCentre of Excellence in Biological Interactions ResearchCopyright
© 2020 FEMS
Air carries a vast number of bacteria and viruses over great distances all the time. This leads into the continuous introduction of foreign genetic material to local established microbial communities. In this perspective, I ask whether this silent rain may have a slowing effect on the overall evolutionary rates in the microbial biosphere. Arguably, the greater the genetic divergence between gene ‘donors’ and ‘recipients’, the greater the chance that the gene product has a deleterious epistatic interaction with other gene products in its genetic environment. This is due to the long-term absence of check for mutual compatibility. As such, if an organism is extensively different from other bacteria, genetic innovations are less probable to fit to the genome. Here genetic innovation would be anything that elevates the fitness of the gene vehicle (e.g. bacterium) over its contemporaries. Adopted innovations increase the fitness of the compatible genome over incompatible ones, thus, possibly tempering the pace at which mutations accumulate in existing genomes over generations. I further discuss the transfer of bacteriophages through atmosphere and potential effects that this may have on local dynamics and perhaps phage survival.
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Oxford University PressISSN Search the Publication Forum
0168-6496Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/35709596
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Research Council of FinlandFunding program(s)
Academy Research Fellow, AoFAdditional information about funding
This work was supported by the Academy of Finland (grant numbers 252411, 297049), Emil Aaltonen Foundation, and Jane and Aatos Erkko Foundation.License
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