Cycles of external dependency drive evolution of avian carotenoid networks

Alexander Badyaev; Alexander B. Posner; Erin S. Morrison; Dawn M. Higginson

doi:10.1038/s41467-019-09579-y

Cycles of external dependency drive evolution of avian carotenoid networks

Alexander Badyaev, Alexander B. Posner, Erin S. Morrison, Dawn M. Higginson

Ecology and Evolutionary Biology

Research output: Contribution to journal › Article

1 Citation (Scopus)

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.

Original language	English (US)
Article number	1596
Journal	Nature communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41467-019-09579-y
State	Published - Dec 1 2019

Fingerprint

Biota

carotenoids

Carotenoids

Diet

cycles

network control

diets

redundancy

Nutrition

organisms

Shielding

shielding

Redundancy

modules

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

Cite this

Badyaev, A., 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]. https://doi.org/10.1038/s41467-019-09579-y

Cycles of external dependency drive evolution of avian carotenoid networks. / Badyaev, Alexander; Posner, Alexander B.; Morrison, Erin S.; Higginson, Dawn M.

In: Nature communications, Vol. 10, No. 1, 1596, 01.12.2019.

Research output: Contribution to journal › Article

Badyaev, A, Posner, AB, Morrison, ES & Higginson, DM 2019, 'Cycles of external dependency drive evolution of avian carotenoid networks', Nature communications, vol. 10, no. 1, 1596. https://doi.org/10.1038/s41467-019-09579-y

Badyaev A, Posner AB, Morrison ES, Higginson DM. Cycles of external dependency drive evolution of avian carotenoid networks. Nature communications. 2019 Dec 1;10(1). 1596. https://doi.org/10.1038/s41467-019-09579-y

Badyaev, Alexander ; Posner, Alexander B. ; Morrison, Erin S. ; Higginson, Dawn M. / Cycles of external dependency drive evolution of avian carotenoid networks. In: Nature communications. 2019 ; Vol. 10, No. 1.

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Access to Document

10.1038/s41467-019-09579-y