Interactions between genetic and environmental factors determine direction of population lateralization

Behavioral and Brain Sciences 28 (4):598-598 (2005)
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Abstract

Direction of the embyro's head rotation is determined by asymmetrical expression of several genes (such as shh, Nodal, lefty, and FGF8) in Hensen's node. This genetically determined head-turning bias provides a base for light-aligned population lateralization in chicks, in which the direction of the lateralization is determined by genetic factors and the degree of the lateralization is determined by environmental factors.

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10.1017/s0140525x05310107

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