Myosin gene mutation correlates with anatomical changes in the human lineage

@article{Stedman2004MyosinGM,
  title={Myosin gene mutation correlates with anatomical changes in the human lineage},
  author={Hansell H. Stedman and Benjamin W. Kozyak and Anthony Nelson and Danielle M Thesier and Leonard T. Su and David W. Low and Charles R. Bridges and Joseph B. Shrager and Nancy Minugh-Purvis and M. A. Mitchell},
  journal={Nature},
  year={2004},
  volume={428},
  pages={415-418}
}
Powerful masticatory muscles are found in most primates, including chimpanzees and gorillas, and were part of a prominent adaptation of Australopithecus and Paranthropus, extinct genera of the family Hominidae. In contrast, masticatory muscles are considerably smaller in both modern and fossil members of Homo. The evolving hominid masticatory apparatus—traceable to a Late Miocene, chimpanzee-like morphology—shifted towards a pattern of gracilization nearly simultaneously with accelerated… 
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Expression of myosin heavy chain isoforms mRNA transcripts in the temporalis muscle of common chimpanzees (Pan troglodytes).
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