工业化国家的自然选择：对三代意大利新生儿的研究。
Natural selection in industrialized countries: a study of three generations of Italian newborns.
作者信息
Ulizzi L, Astolfi P, Zonta L A
机构信息
Dipartimento di Genetica e Biologia Molecolare C. Darwin, Università La Sapienza, Rome, Italy.
出版信息
Ann Hum Genet. 1998 Jan;62(Pt 1):47-53. doi: 10.1046/j.1469-1809.1998.6210047.x.
Abstract
We have studied the impact of natural selection on the Italian population, analysing the relationship between stillbirth and three related variables: birth weight, birth order and maternal age. A progressive relaxation of selection with time has been demonstrated by the reduction of the Haldane index calculated with respect to the three variables.
摘要
我们研究了自然选择对意大利人群的影响，分析了死产与三个相关变量之间的关系：出生体重、出生顺序和母亲年龄。通过计算相对于这三个变量的霍尔丹指数的降低，已证明随着时间的推移选择压力在逐渐减轻。
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