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Constraints associated with captivity alter craniomandibular integration in wild boar
Dimitri Neaux1,2, Barbara Blanc3, Katia Ortiz3,4
1Archéozoologie et Archéobotanique : Sociétés, Pratiques et Environnements, UMR 7209, Muséum national d'Histoire naturelle CNRS, Paris, France.
Journal of Anatomy
|March 13, 2021
Summary
Domestication, a key step in animal evolution, reduces the integration between cranial and mandibular structures. This study reveals how captivity impacts these biological connections, influencing the development of domestic animal traits.
Area of Science:
- Evolutionary biology
- Animal domestication
- Developmental biology
Background:
- Domestication involves significant phenotypic evolution.
- Morphological integration influences evolutionary trajectories.
- The impact of domestication on integration magnitude is understudied.
Purpose of the Study:
- To assess how captivity affects craniomandibular integration.
- To understand the role of domestication constraints in shaping morphology.
Main Methods:
- Utilized three-dimensional (3D) landmark-based geometric morphometrics.
- Investigated craniomandibular integration in Western European Sus scrofa.
Main Results:
- Captivity was associated with reduced integration between the cranium and mandible.
- Plastic responses to captivity influence the integration of functional structures.
Conclusions:
- Captivity, a domestication precursor, can decrease morphological integration.
- Further integration studies are crucial for understanding domestic phenotype evolution.
