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Natural selection associated with birth weight. V. The secular relaxation of the stabilizing component
1Dipartimento di Genetica e Biologia Molecolare, Università La Sapienza, Roma.
Annals of Human Genetics
|July 1, 1987
Abstract:
The secular trend of stabilizing selection on birth weight has been studied during the last decades in 17 countries, representative of America, Asia and Europe. A relaxation of the intensity of selection is regularly observed, which can probably be attributed to a progressive reduction of the environmental component of birth weight variance.