Cycles of external dependency drive evolution of avian carotenoid networks
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Univ Arizona, Dept Ecol & Evolutionary BiolIssue Date
2019-04-08
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NATURE PUBLISHING GROUPCitation
Badyaev, A. V., Posner, A. B., Morrison, E. S., & Higginson, D. M. (2019). Cycles of external dependency drive evolution of avian carotenoid networks. Nature communications, 10(1), 1596.Journal
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© The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
All organisms depend on input of exogenous compounds that cannot be internally produced. Gain and loss of such dependencies structure ecological communities and drive species' evolution, yet the evolution of mechanisms that accommodate these variable dependencies remain elusive. Here, we show that historical cycles of gains and losses of external dependencies in avian carotenoid-producing networks are linked to their evolutionary diversification. This occurs because internalization of metabolic controls-produced when gains in redundancy of dietary inputs coincide with increased branching of their derived products-enables rapid and sustainable exploration of an existing network by shielding it from environmental fluctuations in inputs. Correspondingly, loss of internal controls constrains evolution to the rate of the gains and losses of dietary precursors. Because internalization of a network's controls necessarily bridges diet-specific enzymatic modules within a network, it structurally links local adaptation and continuous evolution even for traits fully dependent on contingent external inputs.Note
Open access journalISSN
2041-1723PubMed ID
30962432Version
Final published versionSponsors
University of Arizona Libraries Open Access Publishing Fund; Berkeley Research Impact Initiative (BRII) - UC Berkeley Library; National Science Foundation [DEB-0075388, IBN-0218313, DEB-0077804]; David and Lucille Packard Foundationae974a485f413a2113503eed53cd6c53
10.1038/s41467-019-09579-y
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Except where otherwise noted, this item's license is described as © The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License.
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