Metric dental variation of major human populations
Metric dental variation of major human populations
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DOI：
10.1002/ajpa.20080
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发表时间：
2005-10-01
影响因子：
2.8
通讯作者：
Ishida, H
中科院分区：
文献类型：
--
作者：
Hanihara, T;Ishida, H
分析了72个主要人口群体和7个地理群体中记录的所有牙齿的近远中和颊舌牙冠直径。取得的成果有五个方面。首先，最大的牙齿是在澳大利亚人中发现的，其次是美拉尼西亚人，撒哈拉以南非洲人和美洲原住民。菲律宾黑人、绳文人/阿伊努人和欧亚西部人的牙齿较小，而东亚/东南亚人和波利尼西亚人的牙齿大小居中。第二，在牙形测量因素方面，世界极端是欧洲人，原住民新世界人口，并在较小程度上，澳大利亚人。第三，东亚/东南亚人与撒哈拉以南的非洲人有着相似的牙齿特征，并且落在被大量样本占据的表型空间的中心。第四，主要地理种群之间的牙齿变异模式或多或少与遗传和颅骨测量数据一致。第五，一旦考虑到撒哈拉以南非洲、欧洲、南亚/西亚、澳大利亚和远东之间的人口规模差异以及遗传漂变，撒哈拉以南非洲的独特性模式或多或少与基于遗传和颅骨测量数据的模式具有可比性。因此，世界范围内的牙齿测量变异模式为正在进行的解剖学现代人类起源研究提供了一条额外的途径。
Mesiodistal and buccolingual crown diameters of all teeth recorded in 72 major human population groups and seven geographic groups were analyzed. The results obtained are fivefold. First, the largest teeth are found among Australians, followed by Melanesians, Micronesians, sub-Saharan Africans, and Native Americans. Philippine Negritos, Jomon/Ainu, and Western Eurasians have small teeth, while East/Southeast Asians and Polynesians are intermediate in overall tooth size. Second, in terms of odontometric shape factors, world extremes are Europeans, aboriginal New World populations, and to a lesser extent, Australians. Third, East/Southeast Asians share similar dental features with sub-Saharan Africans, and fall in the center of the phenetic space occupied by a wide array of samples. Fourth, the patterning of dental variation among major geographic populations is more or less consistent with those obtained from genetic and craniometric data. Fifth, once differences in population size between sub-Saharan Africa, Europe, South/West Asia, Australia, and Far East, and genetic drift are taken into consideration, the pattern of sub-Saharan African distinctiveness becomes more or less comparable to that based on genetic and craniometric data. As such, worldwide patterning of odontometric variation provides an additional avenue in the ongoing investigation of the origin(s) of anatomically modern humans.