文章基本信息

标题：A more comprehensive view of the Denisovan 3-rooted lower second molar from Xiahe
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作者：G. Richard Scott ; Joel D. Irish ; María Martinón-Torres 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2020
卷号：117
期号：1
页码：37-38
DOI：10.1073/pnas.1918004116
出版社：The National Academy of Sciences of the United States of America
摘要：Bailey et al. (1) describe a lower second molar with 3 roots in a Denisovan hemimandible dated 160,000 ka. The presence of a third root is stated to occur in <3.5% of non-Asians and in up to 40% of Asians and some New World populations. From this, they conclude the feature “provides morphological evidence of a strong link between archaic and recent Asian H[omo] sapiens populations. This link provides compelling evidence that modern Asian lineages acquired the 3-rooted lower molar via introgression from Denisovans” (ref. 1, p. 14806). However, there are 2 problems regarding this statement.