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Cited by 263

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Network analyses structure genetic diversity in independent genetic worlds

Open access
Halary, Sébastien, Leigh, Jessica W., Cheaib, Bachar, Lopez, Philippe, Bapteste, Eric·2010·Proceedings of the National Academy of Sciences

Abstract

DNA flows between chromosomes and mobile elements, following rules that are poorly understood. This limited knowledge is partly explained by the limits of current approaches to study the structure and evolution of genetic diversity. Network analyses of 119,381 homologous DNA families, sampled from 111 cellular genomes and from 165,529 phage, plasmid, and environmental virome sequences, offer challenging insights. Our results support a disconnected yet highly structured network of genetic diversity, revealing the existence of multiple “genetic worlds.” These divides define multiple isolated groups of DNA vehicles drawing on distinct gene pools. Mathematical studies of the centralities of these worlds’ subnetworks demonstrate that plasmids, not viruses, were key vectors of genetic exchange between bacterial chromosomes, both recently and in the past. Furthermore, network methodology introduces new ways of quantifying current sampling of genetic diversity.

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Metadata

Authors
Halary, S., Leigh, J. W., Cheaib, B., Lopez, P., & Bapteste, E.
Venue
Proceedings of the National Academy of Sciences
Published
2009-12-29
Volume
107
Issue
1
Pages
127-132
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2062399100
Cited by
263
References
3
FWCI
6.60
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Network analyses structure genetic diversity in independent genetic worlds. https://app.cochat.ai/papers/10.1073/pnas.0908978107
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Halary, S., Leigh, J. W., Cheaib, B., Lopez, P., & Bapteste, E. (2010). Network analyses structure genetic diversity in independent genetic worlds. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0908978107

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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