Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits.

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  • Additional Information
    • Subject Terms:
    • Author-Supplied Keywords:
      austria
      cranial nonmetric traits
      heritability
      maximum likelihood
      pedigree analysis
      variance components analysis
    • Abstract:
      Nonmetric traits of the cranium are often used to support hypotheses of the history and divergence of human populations. These studies rely on the assumption that nonmetric traits are heritable, yet few skeletal series exist with associated pedigree information that allow for the calculation of additive genetic variance, or heritability. In addition, traits for which heritabilities have been published represent dichotomous present/absent forms instead of the range of expression that can be observed for many nonmetnc characters. In the present study I use a maximum-likelihood variance components analysis to calculate univariate narrow-sense heritability estimates on the skeletal series from Hallstatt, Austria, for 9 sutural bones, 27 multilevel traits, and dichotomized present/absent forms for 19 of these multilevel characters. Most of the trait heritabilities do not differ significantly from a model of h2 = 0, and they have large standard errors. In a heuristic comparison of multilevel versus dichotomous trait forms, most of the nonmetric characters showed no differences in heritability between the two methods used for parsing the phenotypic variation, although where dif- ferences were noted, the presence-absence version had higher heritabilities. These results have implications not only for the use of particular nonmetric traits in population studies but also for the practice of character dichotomiza- tion in data collection. [ABSTRACT FROM AUTHOR]
    • Abstract:
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    • Author Affiliations:
      1Department of Anthropology, University of New Mexico, MSC 01-1040, Albuquerque, NM 87131.
    • ISSN:
      0018-7143
    • Accession Number:
      10.1353/hub.2006.0054
    • Accession Number:
      23753112
  • Citations
    • ABNT:
      CARSON, E. A. Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits. Human Biology, [s. l.], v. 78, n. 4, p. 383–402, 2006. DOI 10.1353/hub.2006.0054. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=aph&AN=23753112. Acesso em: 12 ago. 2020.
    • AMA:
      Carson EA. Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits. Human Biology. 2006;78(4):383-402. doi:10.1353/hub.2006.0054
    • APA:
      Carson, E. A. (2006). Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits. Human Biology, 78(4), 383–402. https://doi.org/10.1353/hub.2006.0054
    • Chicago/Turabian: Author-Date:
      Carson, E. Ann. 2006. “Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits.” Human Biology 78 (4): 383–402. doi:10.1353/hub.2006.0054.
    • Harvard:
      Carson, E. A. (2006) ‘Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits’, Human Biology, 78(4), pp. 383–402. doi: 10.1353/hub.2006.0054.
    • Harvard: Australian:
      Carson, EA 2006, ‘Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits’, Human Biology, vol. 78, no. 4, pp. 383–402, viewed 12 August 2020, .
    • MLA:
      Carson, E.Ann. “Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits.” Human Biology, vol. 78, no. 4, Aug. 2006, pp. 383–402. EBSCOhost, doi:10.1353/hub.2006.0054.
    • Chicago/Turabian: Humanities:
      Carson, E. Ann. “Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits.” Human Biology 78, no. 4 (August 2006): 383–402. doi:10.1353/hub.2006.0054.
    • Vancouver/ICMJE:
      Carson EA. Maximum-Likelihood Variance Components Analysis of Heritabilities of Cranial Nonmetric Traits. Human Biology [Internet]. 2006 Aug [cited 2020 Aug 12];78(4):383–402. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=aph&AN=23753112