Somewhat Less-Recent Common Ancestors of All Present-Day Individuals
نویسنده
چکیده
The notion of our common ancestors has received considerable attention of late in both the scientific and lay communities. Principally this attention has focused on ‘Mitochondrial Eve,’ defined to be the woman who lies at the confluence of our maternal ancestry lines, and who is believed to have lived 100,000–200,000 years ago. More recent attention has been given to our common paternal ancestor, ‘Y Chromosome Adam,’ who may have lived 35,000–89,000 years ago. However, if we consider not just our all-female and all-male lines, but our ancestors along all parental lines, it turns out that everyone on earth may share a common ancestor who is remarkably recent. Unfortunately, we have so far only been able to speculate about exactly how recent. This study introduces a detailed but large-scale computer model of recent human history, the outcome of which suggests that we may have had a common ancestor living as recently as 300 A.D. Furthermore, the model indicates that everyone living prior to about 200 B.C. is either the ancestor of no one or of everyone alive today.
منابع مشابه
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تاریخ انتشار 2007