Detecting Phylogenetic Signal and Adaptation in Papionin Cranial Shape by Decomposing Variation at Different Spatial Scales
| Autor: | Silvester J Bartsch, Anne Le Maître, Nicole D S Grunstra, Philipp Mitteroecker |
|---|---|
| Přispěvatelé: | University of Vienna [Vienna], Konrad Lorenz Institute for Evolution and Cognition Research, Partenaires INRAE, Natural History Museum [Vienna] (NHM), Medizinische Universität Wien = Medical University of Vienna, Laboratoire de paléontologie, évolution, paléoécosystèmes, paléoprimatologie (PALEVOPRIM ), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine canalization Papionini [SDV]Life Sciences [q-bio] Context (language use) phylogeny 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Phylogenetics Genetics Animals Adaptation geometric morphometrics Ecology Evolution Behavior and Systematics Morphometrics biology Phylogenetic tree Skull AcademicSubjects/SCI01130 biology.organism_classification Biological Evolution cranial shape 030104 developmental biology Taxon Evolutionary biology Molecular phylogenetics partial warps papionini Regular Articles |
| Zdroj: | Systematic Biology Systematic Biology, Oxford University Press (OUP), 2021, 70 (4), pp.694-706. ⟨10.1093/sysbio/syaa093⟩ |
| ISSN: | 1063-5157 1076-836X |
| DOI: | 10.1093/sysbio/syaa093⟩ |
| Popis: | Phylogenetic reconstruction based on morphometric data is hampered by homoplasies. For example, many similarities in cranial form between primate taxa more strongly reflect ecological similarities rather than phylogenetic relatedness. However, the way in which the different cranial bones constitute cranial form is, if at all, of less functional relevance and thus largely hidden from selection. We propose that these “constructional details” are better indicators of phylogenetic history than any large-scale shape feature or raw form variable. Within a geometric morphometric context, we show how to analyze the relative extent of bones independently of differences in overall shape. We also show how to decompose total shape variation into small-scale and large-scale shape variation. We apply both methods to the midsagittal cranial morphology of papionin monkeys, which are well known for the discrepancy between morphological similarities and phylogenetic relationships. We study phylogenetic signal and functional adaptation using a molecular phylogeny and contextual data on feeding ecology and locomotor behavior. As expected, total cranial shape, bone outline shape, and large-scale shape features were only weakly associated with phylogenetic distance. But the relative bone contributions and small-scale shape features were both highly correlated with phylogenetic distances. By contrast, the association with ecological and behavioral variables was strongest for the outline shape and large-scale shape features. Studies of morphological adaptation and phylogenetic history thus profit from a decomposition of shape variation into different spatial scales. [Adaptation; canalization; cranial shape; geometric morphometrics; papionini; partial warps; phylogeny.] |
| Databáze: | OpenAIRE |
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