Cross-cultural estimation of the human generation interval for use in genetics-based population divergence studies
Cross-cultural estimation of the human generation interval for use in genetics-based population divergence studies
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DOI：
10.1002/ajpa.20188
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发表时间：
2005-10-01
影响因子：
2.8
通讯作者：
Fenner, JN
中科院分区：
文献类型：
--
作者：
Fenner, JN
人类世代间隔的长度是使用遗传学来确定种群分化事件日期的关键参数。然而，关于世代间隔长度没有达成共识，并且在最近的研究中使用了各种各样的间隔长度。这使得研究之间的比较困难，并质疑分歧日期估计的准确性。最近基于系谱学的研究表明，雄性的世代间隔比雌性的间隔长得多，而且两者都大于遗传学研究中常用的值。本研究在更广泛的跨文化背景下评估这些假设中的每一个，使用来自民族国家和最近的狩猎采集社会的数据。这两个假设都得到了本研究的支持，因此，提出了修订后的估计男性，女性和整个人类的世代间隔长度。几乎普遍的，跨文化的性质的证据证明使用这些拟议的估计在Y染色体，线粒体和常染色体DNA为基础的人口分歧的研究。
The length of the human generation interval is a key parameter when using genetics to date population divergence events. However, no consensus exists regarding the generation interval length, and a wide variety of interval lengths have been used in recent studies. This makes comparison between studies difficult, and questions the accuracy of divergence date estimations. Recent genealogy-based research suggests that the male generation interval is substantially longer than the female interval, and that both are greater than the values commonly used in genetics studies. This study evaluates each of these hypotheses in a broader cross-cultural context, using data from both nation states and recent hunter-gatherer societies. Both hypotheses are supported by this study; therefore, revised estimates of male, female, and overall human generation interval lengths are proposed. The nearly universal, cross-cultural nature of the evidence justifies using these proposed estimates in Y-chromosomal, mitochondrial, and autosomal DNA-based population divergence studies.