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dc.contributor.author
Martínez Abadías, Neus
dc.contributor.author
Paschetta, Carolina Andrea
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dc.contributor.author
de Azevedo, Soledad
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dc.contributor.author
Esparza, Mireia
dc.contributor.author
González José, Rolando
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dc.date.available
2020-01-21T14:34:48Z
dc.date.issued
2009-03
dc.identifier.citation
Martínez Abadías, Neus; Paschetta, Carolina Andrea; de Azevedo, Soledad; Esparza, Mireia; González José, Rolando; Developmental and genetic constraints on neurocranial globularity: Insights from analyses of deformed skulls and quantitative genetics; Springer; Evolutionary Biology; 36; 1; 3-2009; 37-56
dc.identifier.issn
0071-3260
dc.identifier.uri
http://hdl.handle.net/11336/95384
dc.description.abstract
Neurocranial globularity is one of the few derived traits defining anatomically modern humans. Variations in this trait derive from multiple and complex interactions between portions of the brain and the size and shape of the cranial base, among other factors. Given their evolutionary and functional importance, neurocranial globularity is expected to present high genetic and developmental constraints on their phenotypic expression. Here we applied two independent approaches to investigate both types of constraints. First, we assessed if patterns of morphological integration are conserved or else disrupted on a series of artificially deformed skulls in comparison to nondeformed (ND) ones. Second, after the estimation of the genetic covariance matrix for human skull shape, we explored how neurocranial globularity would respond to putative selective events disrupting the normal morphological patterns. Simulations on these deviations were explicitly set to replicate the artificial deformation patterns in order to compare developmental and genetic constraints under the same biomechanical conditions. In general terms, our results indicate that putative developmental constraints help to preserve some aspects of normal morphological integration even in the deformed skulls. Moreover, we find that the response to selection in neurocranial globularity is pervasive. In other words, induced changes in the vault generate a global response, indicating that departures from normal patterns of neurocranial globularity are genetically constrained. In summary, our combined results suggest that neurocranial globularity behaves as a highly genetic and developmental constrained trait.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARTIFICIAL DEFORMATION
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CONSTRAINTS
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GEOMETRIC MORPHOMETRICS
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MORPHOLOGICAL INTEGRATION
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NEUROCRANIAL GLOBULARITY
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QUANTITATIVE GENETICS
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Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Developmental and genetic constraints on neurocranial globularity: Insights from analyses of deformed skulls and quantitative genetics
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-12-12T14:48:19Z
dc.identifier.eissn
1934-2845
dc.journal.volume
36
dc.journal.number
1
dc.journal.pagination
37-56
dc.journal.pais
Alemania
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dc.description.fil
Fil: Martínez Abadías, Neus. Universidad de Barcelona; España
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Fil: Paschetta, Carolina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: de Azevedo, Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: Esparza, Mireia. Universidad de Barcelona; España
dc.description.fil
Fil: González José, Rolando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.journal.title
Evolutionary Biology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11692-008-9045-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11692-008-9045-4
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