Transcriptomic and macroevolutionary evidence for phenotypic uncoupling between frog life history phases
Wollenberg Valero, Katharina C. (Bethune-Cookman University. Department of Natural Sciences)
Garcia-Porta, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Rodríguez, Ariel (Technische Universität Braunschweig)
Arias, Mónica (Universität München. Division of Evolutionary Biology)
Shaha, Abhijeet (Universität München. Division of Evolutionary Biology)
Randrianiaina, Roger Daniel (Technische Universität Braunschweig)
Brown, L. Brown (Southern Illinois University)
Glaw, Frank (Zoologische Staatssammlung München)
Amat Orriols, Fèlix (Museu de Granollers. Àrea de Ciències Naturals)
Künzel, Sven (Max Planck Institute for Developmental Biology)
Metzler, Dirk (Universität München. Division of Evolutionary Biology)
Isokpehi, Raphael D. (Bethune-Cookman University. Department of Natural Sciences)
Vences, Miguel (Technische Universität Braunschweig)

Data:	2017
Resum:	Anuran amphibians undergo major morphological transitions during development, but the contribution of their markedly different life-history phases to macroevolution has rarely been analysed. Here we generate testable predictions for coupling versus uncoupling of phenotypic evolution of tadpole and adult life-history phases, and for the underlying expression of genes related to morphological feature formation. We test these predictions by combining evidence from gene expression in two distantly related frogs, Xenopus laevis and Mantidactylus betsileanus, with patterns of morphological evolution in the entire radiation of Madagascan mantellid frogs. Genes linked to morphological structure formation are expressed in a highly phase-specific pattern, suggesting uncoupling of phenotypic evolution across life-history phases. This gene expression pattern agrees with uncoupled rates of trait evolution among life-history phases in the mantellids, which we show to have undergone an adaptive radiation. Our results validate a prevalence of uncoupling in the evolution of tadpole and adult phenotypes of frogs.
Nota:	Ajuts: We are grateful to the authorities of the Republic of Madagascar for research, collection, and export permits, and to M. Scherz for copyediting of the manuscript. This study was supported by a grant of the Deutsche Forschungsgemeinschaft to M.V. (VE247/2-1), a DAAD fellowship to R.D.R., a Georg Forster fellowship of the Humboldt Foundation to A.R., and HBCU-UP NSF grant 1435186 to R.D.I. and K.C.W.V.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	Nature communications, Vol. 8 (May 2017) , art. 15213, ISSN 2041-1723

DOI: 10.1038/ncomms15213
PMID: 28504275

9 p, 1.2 MB

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