Random genetic drift, natural selection, and noise in human cranial evolution

American Journal of Physical Anthropology
Charles C Roseman

Abstract

This study assesses the extent to which relationships among groups complicate comparative studies of adaptation in recent human cranial variation and the extent to which departures from neutral additive models of evolution hinder the reconstruction of population relationships among groups using cranial morphology. Using a maximum likelihood evolutionary model fitting approach and a mixed population genomic and cranial data set, I evaluate the relative fits of several widely used models of human cranial evolution. Moreover, I compare the goodness of fit of models of cranial evolution constrained by genomic variation to test hypotheses about population specific departures from neutrality. Models from population genomics are much better fits to cranial variation than are traditional models from comparative human biology. There is not enough evolutionary information in the cranium to reconstruct much of recent human evolution but the influence of population history on cranial variation is strong enough to cause comparative studies of adaptation serious difficulties. Deviations from a model of random genetic drift along a tree-like population history show the importance of environmental effects, gene flow, and/or natural selection o...Continue Reading

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Citations

Jun 18, 2016·American Journal of Physical Anthropology·Bridget F B Algee-Hewitt, Amy Goldberg
Jul 1, 2016·American Journal of Physical Anthropology·Noreen von Cramon-Taubadel, Lauren Schroeder
Apr 5, 2017·American Journal of Physical Anthropology·D TurbonC M Cuadras
Jun 22, 2017·American Journal of Physical Anthropology·Bridget F B Algee-Hewitt
Jun 20, 2017·American Journal of Physical Anthropology·Kathleen S Paul, Christopher M Stojanowski
Apr 4, 2018·Proceedings of the National Academy of Sciences of the United States of America·Marcia S Ponce de LeónChristoph P E Zollikofer
Nov 9, 2017·American Journal of Physical Anthropology·Lumila Paula Menéndez
Jan 21, 2021·Proceedings. Biological Sciences·Karen L Baab
Mar 18, 2021·Scientific Reports·Karel KleisnerS Adil Saribay
Jun 13, 2021·American Journal of Physical Anthropology·Sheela Athreya, Allison Hopkins
Aug 1, 2021·American Journal of Physical Anthropology·Cathy Ngọc Hân Tran, Lauren Schroeder

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