Relethford J H
Am J Phys Anthropol. 1985 Mar;66(3):317-26. doi: 10.1002/ajpa.1330660309.
Previous research has revealed extensive genetic variation among villages on Bougainville, in the Solomon Islands. Using previously published gene frequency data for seven loci, the role of isolation by distance in structuring genetic variation on Bougainville was reanalyzed. Newer methods of kinship estimation show that earlier estimates of the isolation by distance parameters were low. The fit of the model is highly significant (R2 = 0.409; P less than 0.001), and the parameter estimates indicate high isolation: a = 0.0538, b = 0.1978, L = -0.0057. Several methods of residual analysis were applied in order to determine factors affecting the fit of the model. Linguistic similarity has a significant effect on genetic variation once the effects of geographic distance are taken into account. Population-specific deviations from the expected model may be explained, in part, in terms of population history. Compared to other human populations, Bougainville Island shows an even greater among-group variation than has been suggested previously.
此前的研究揭示了所罗门群岛布干维尔岛上各个村庄之间广泛的基因变异情况。利用先前公布的七个基因座的基因频率数据，对距离隔离在布干维尔岛基因变异结构形成中的作用进行了重新分析。更新的亲属关系估计方法表明，早期对距离隔离参数的估计值偏低。该模型的拟合度非常显著（R2 = 0.409；P小于0.001），参数估计表明隔离程度较高：a = 0.0538，b = 0.1978，L = -0.0057。为了确定影响模型拟合的因素，应用了几种残差分析方法。一旦考虑到地理距离的影响，语言相似度对基因变异有显著影响。特定人群与预期模型的偏差部分可以根据人群历史来解释。与其他人类群体相比，布干维尔岛群体间的变异比之前认为的还要大。
