A Geographical Cline in Metrical Characteristics of Kofun Skulls from Western Japan
A Geographical Cline in Metrical Characteristics of Kofun Skulls from Western Japan
复制标题
西日本古坟头骨韵律特征的地理倾向
DOI：
10.1537/ase1911.95.325
复制
发表时间：
1987
期刊：
影响因子：
--
通讯作者：
Yoshiyuki Tanaka
中科院分区：
文献类型：
--
作者：
N. Doi;Yoshiyuki Tanaka
使用主成分分析法研究了古坟头骨测量特征的地理差异。在用MARTIN和SALLER（1957）的方法获得的颅骨测量结果中，九州北方移民的遗传影响表现为地理渐变。我们认为，这种渐变群是弥生时代以来的迁徙和基因混合的结果。根据距离与各序列第一主成分得分的关系，确定了3种倾斜形式：1）陡降曲线，2）缓降曲线，3）线性或不规则型。这三种基因流动的速度似乎不一样。向东扩散的方向可能代表了当地的移民，以获得有利的耕地。
Geographic variations in metrical characteristics of Kofun skulls were examined, using the principal component analysis. The genetic influence of immigrants in northern Kyushu appeared as a geographical cline in the cranial measurements obtained by the method of MARTIN and SALLER (1957). We considered that the cline originated from the migration and gene mixture, since the Yayoi period. The following three clinal forms were determined from the relationship between the distance and the score of the first principal component in each series : 1) abrupt fall-off curve, 2) gentle fall-off curve, and 3) linear or irregular type. These three types seemed to show different rates of gene flow. The direction of diffusion to the east may represent local migration to obtain favorable land for cultivation.