Articles producció científica> Història i Història de l'Art

Evolutionary selection and morphological integration in the foot of modern humans

  • Identification data

    Identifier: imarina:9291706
  • Authors:

    Arlegi, M
    Pablos, A
    Lorenzo, C
  • Others:

    Author, as appears in the article.: Arlegi, M; Pablos, A; Lorenzo, C
    Department: Història i Història de l'Art
    URV's Author/s: Lorenzo Merino, Carlos
    Keywords: Pleistocene site sierra Flexibility Feet Evolvability Constraints Adaptation size quantitative genetics modularity longitudinal arch locomotor anatomy joint homology functional-morphology flexibility feet evolvability constraints
    Abstract: Objectives: To advance our understanding of the evolution of the hominin foot by quantifying integration and responses to selection in the foot of modern humans. Materials and Methods: The sample includes 247 female and male adult individuals from Euro-American, Afro-American, European, and Amerindian populations. We collected 190 linear measurements from the 26 skeletal elements that constitute the modern human foot. With these data, we calculated the magnitudes of integration and the ability of the foot to respond to selection demands. Results: The results revealed that distal phalanges are less integrated, more evolvable, and more flexible than proximal elements (i.e., proximal phalanges and metatarsals). Also, bones from the medial ray (e.g., hallux) show stronger integration and weaker evolvability than their counterparts from the lateral column (e.g., fifth ray), following this trend from medial to lateral positions. Among the tarsals, the talus and calcaneus are the most integrated, least evolvable, and flexible elements from that module. Discussion: These results suggest that selection for bipedalism would have reorganized the variance/covariance matrix of the foot. The hallux might have been under strong functional selection pressures for bipedal requirements, resulting in a strong integration and low evolvability. Also, differences in the developmental process of each bone seem to have played an essential role in the degree of evolvability, showing those elements that develop earlier have less ability to respond to selection demands.
    Thematic Areas: Paleontology Genetics Evolutionary biology Epidemiology Archeology Anthropology Anatomy
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: carlos.lorenzo@urv.cat
    Author identifier: 0000-0001-5706-293X
    Record's date: 2024-06-15
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://onlinelibrary.wiley.com/doi/full/10.1002/ajpa.24703
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: American Journal Of Biological Anthropology. 180 (4): 655-672
    APA: Arlegi, M; Pablos, A; Lorenzo, C (2023). Evolutionary selection and morphological integration in the foot of modern humans. American Journal Of Biological Anthropology, 180(4), 655-672. DOI: 10.1002/ajpa.24703
    Article's DOI: 10.1002/ajpa.24703
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2023
    Publication Type: Journal Publications
  • Keywords:

    Anthropology,Evolutionary Biology
    Pleistocene site sierra
    Flexibility
    Feet
    Evolvability
    Constraints
    Adaptation
    size
    quantitative genetics
    modularity
    longitudinal arch
    locomotor anatomy
    joint
    homology
    functional-morphology
    flexibility
    feet
    evolvability
    constraints
    Paleontology
    Genetics
    Evolutionary biology
    Epidemiology
    Archeology
    Anthropology
    Anatomy
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