What question did this study set out to answer?

To determine whether the biological species concept, grounded in gene flow and reproductive isolation, can establish consistent species boundaries across diverse viral populations.

May 21, 2018Proceedings of the National Academy of SciencesOpen Access

Biological species in the viral world

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Authors

LBLouis‐Marie BobayNorth Carolina State University HOHoward OchmanThe University of Texas at Austin

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Implication

Genomic analysis reveals reproductively isolated species boundaries in viral lineages, indicating a universal species framework across cellular and acellular life.

Key Points

To determine whether the biological species concept, grounded in gene flow and reproductive isolation, can establish consistent species boundaries across diverse viral populations.
Applied a population genetic approach to identify boundaries of gene flow among viral lineages, replacing arbitrary sequence similarity thresholds.
Evaluated patterns of genetic exchange and reproductive isolation across eukaryotic viruses and bacteriophages relative to host tropism and shared gene content.
Viral populations organize into distinct, reproductively isolated groups despite widespread opportunities for genetic exchange between divergent genomes.
Identified biological species boundaries strongly correlate with existing viral taxonomy defined by host tropism and shared gene repertoires in both eukaryotic viruses and bacteriophages.
Gene flow metrics provide a coherent, universal framework for defining species that operates equivalently in cellular organisms and acellular viruses.

Cite This Study

Bobay et al. (2018) studied this question.

synapsesocial.com/papers/6a7037bb6ceb2bbd16dfd337 https://doi.org/10.1073/pnas.1717593115

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Implication

Genomic analysis reveals reproductively isolated species boundaries in viral lineages, indicating a universal species framework across cellular and acellular life.

Biological species in the viral world

Discussion

Member takes

Implication

Key Points

Cite This Study

Biological species in the viral world

Discussion

Member takes

Implication

Key Points

Cite This Study

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