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Article Dans Une Revue PeerJ Année : 2019

Embracing heterogeneity: coalescing the Tree of Life and the future of phylogenomics

Gustavo A Bravo
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Alexandre Antonelli
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Christine D Bacon
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Krzysztof Bartoszek
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Mozes P K Blom
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Stella Huynh
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Graham Jones
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L. Lacey Lacey Knowles
Sangeet Lamichhaney
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Thomas Marcussen
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Hélène Morlon
Luay K Nakhleh
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Bengt Oxelman
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Bernard Pfeil
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Alexander Schliep
Niklas Wahlberg
Fernanda P Werneck
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John Wiedenhoeft
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Sandi Willows-Munro
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Résumé

Building the Tree of Life (ToL) is a major challenge of modern biology, requiring advances in cyberinfrastructure, data collection, theory, and more. Here, we argue that phylogenomics stands to benefit by embracing the many heterogeneous genomic signals emerging from the first decade of large-scale phylogenetic analysis spawned by high-throughput sequencing (HTS). Such signals include those most commonly encountered in phylogenomic datasets, such as incomplete lineage sorting, but also those reticulate processes emerging with greater frequency, such as recombination and introgression. Here we focus specifically on how phylogenetic methods can accommodate the heterogeneity incurred by such population genetic processes; we do not discuss phylogenetic methods that ignore such processes, such as concatenation or supermatrix approaches or supertrees. We suggest that methods of data acquisition and the types of markers used in phylogenomics will remain restricted until a posteriori methods of marker choice are made possible with routine whole-genome sequencing of taxa of interest. We discuss limitations and potential extensions of a model supporting innovation in phylogenomics today, the multispecies coalescent model (MSC). Macroevolutionary models that use phylogenies, such as character mapping, often ignore the heterogeneity on which building phylogenies increasingly rely and suggest that assimilating such heterogeneity is an important goal moving forward. Finally, we argue that an integrative cyberinfrastructure linking all steps of the process of building the ToL, from specimen acquisition in the field to publication and tracking of phylogenomic data, as well as a culture that values contributors at each step, are essential for progress.
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Dates et versions

hal-02408182 , version 1 (12-12-2019)

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Gustavo A Bravo, Alexandre Antonelli, Christine D Bacon, Krzysztof Bartoszek, Mozes P K Blom, et al.. Embracing heterogeneity: coalescing the Tree of Life and the future of phylogenomics. PeerJ, 2019, 7, pp.e6399. ⟨10.7717/peerj.6399⟩. ⟨hal-02408182⟩

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