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      Left-right asymmetry of the gnathostome skull: its evolutionary, developmental, and functional aspects.

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          Abstract

          Much of the gnathostome (jawed vertebrate) evolutionary radiation was dependent on the ability to sense and interpret the environment and subsequently act upon this information through utilization of a specialized mode of feeding involving the jaws. While the gnathostome skull, reflective of the vertebrate baüplan, typically is bilaterally symmetric with right (dextral) and left (sinistral) halves essentially representing mirror images along the midline, both adaptive and abnormal asymmetries have appeared. Herein we provide a basic primer on studies of the asymmetric development of the gnathostome skull, touching briefly on asymmetry as a field of study, then describing the nature of cranial development and finally underscoring evolutionary and functional aspects of left-right asymmetric cephalic development.

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          Author and article information

          Journal
          Genesis
          Genesis (New York, N.Y. : 2000)
          Wiley-Blackwell
          1526-968X
          1526-954X
          Jun 2014
          : 52
          : 6
          Affiliations
          [1 ] Unit of Neuromuscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Department of Neurosciences, Bambino Gesù Children's Research Hospital, IRCCS, 00165, Rome, Italy.
          Article
          10.1002/dvg.22786
          24753133
          48a27131-945f-4ce5-bed1-efd004070270
          History

          Dlx5,Fgf8,Satb2,adaptive asymmetry,craniofacial,lambdoidal junction

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