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Adult frogs and tadpoles have different macroevolutionary patterns across the Australian continent

Sherratt, Emma; Vidal-Garcia, Marta; ANSTIS, MARION; Keogh, J. Scott

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Developmental changes through an animal's life are generally understood to contribute to the resulting adult morphology. Possible exceptions are species with complex life cycles, where individuals pass through distinct ecological and morphological life stages during their ontogeny, ending with metamorphosis to the adult form. Antagonistic selection is expected to drive low genetic correlations between life stages, theoretically permitting stages to evolve independently. Here we describe, using...[Show more]

dc.contributor.authorSherratt, Emma
dc.contributor.authorVidal-Garcia, Marta
dc.contributor.authorANSTIS, MARION
dc.contributor.authorKeogh, J. Scott
dc.date.accessioned2021-05-05T23:34:12Z
dc.identifier.issn2397-334X
dc.identifier.urihttp://hdl.handle.net/1885/232464
dc.description.abstractDevelopmental changes through an animal's life are generally understood to contribute to the resulting adult morphology. Possible exceptions are species with complex life cycles, where individuals pass through distinct ecological and morphological life stages during their ontogeny, ending with metamorphosis to the adult form. Antagonistic selection is expected to drive low genetic correlations between life stages, theoretically permitting stages to evolve independently. Here we describe, using Australian frog radiation, the evolutionary consequences on morphological evolution when life stages are under different selective pressures. We use morphometrics to characterize body shape of tadpoles and adults across 166 species of frog and investigate similarities in the two resulting morphological spaces (morphospaces) to test for concerted evolution across metamorphosis in trait variation during speciation. A clear pattern emerges: Australian frogs and their tadpoles are evolving independently; their markedly different morphospaces and contrasting estimated evolutionary histories of body shape diversification indicate that different processes are driving morphological diversification at each stage. Tadpole morphospace is characterized by rampant homoplasy, convergent evolution and high lineage density. By contrast, the adult morphospace shows greater phylogenetic signal, low lineage density and divergent evolution between the main clades. Our results provide insight into the macroevolutionary consequences of a biphasic life cycle.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherNature Publishing Group
dc.rights© 2017 Macmillan Publishers Limited, part of Springer Nature.
dc.sourceNature Ecology & Evolution
dc.source.urihttps://www.nature.com/articles/s41559-017-0268-6
dc.titleAdult frogs and tadpoles have different macroevolutionary patterns across the Australian continent
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume1
dc.date.issued2017
local.identifier.absfor060409 - Molecular Evolution
local.identifier.ariespublicationu4351680xPUB410
local.publisher.urlhttps://www.nature.com
local.type.statusPublished Version
local.contributor.affiliationSherratt, Emma, College of Science, ANU
local.contributor.affiliationVidal Garcia, Marta, College of Science, ANU
local.contributor.affiliationANSTIS, MARION, University of Newcastle
local.contributor.affiliationKeogh, J Scott, College of Science, ANU
local.description.embargo2099-12-31
dc.relationhttp://purl.org/au-research/grants/arc/DP150102403
local.bibliographicCitation.issue9
local.bibliographicCitation.startpage1385
local.bibliographicCitation.lastpage1391
local.identifier.doi10.1038/s41559-017-0268-6
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
dc.date.updated2020-11-23T10:10:03Z
local.identifier.scopusID2-s2.0-85031916974
CollectionsANU Research Publications

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