Loesch D
Ann Hum Genet. 1979 Jul;43(1):37-53. doi: 10.1111/j.1469-1809.1979.tb01547.x.
The within- and between-pair mean squares and means have been estimated for dermatoglyphic patterns on finger-tips, palms and soles and compared between samples of 110 MZ and 111 DZ twins of Polish origin. Dermatoglyphic patterns have been represented by topologically significant pattern elements (loops and triradii) on finger-tips, palms and soles, considered separately and in various combinations, ridge counts on finger-tips and on palms and several other palmar and sole measurements. Some genetic parameters such as: genetic variance (GCT) based on within and between mean squares of the two types of twins, the within-pair variance ratio and the covariance/variance ratio in MZ twins have also been obtained for all these traits and considered in relation to differences in respect of the total and between-pair variances and means for all specified characters. The highest values of genetic parameters have been obtained for pattern intensities and ridge counts on finger-tips, considered separately or combined, for the H hypothenar loop and the axial t triradii on palms, and for the majority of sole loops and triradii. The lowest values have been found for several palmar loops and measurements such as minutiae counts. These results are, in respect of some pattern elements, not in agreement with the estimated heritability based on correlations between other relatives. A comparison of genetic parameters for single loops or triradii and for their various combinations indicates that some pattern elements or their combinations may be each influenced by a specific genetic system which modifies their phenotypic expression. It is believed that the obtained results are, for some proportion of characters, clearly biased by inequality of the total variances in MZ and DZ twins.
已对波兰裔110对同卵双胞胎和111对异卵双胞胎样本的指尖、手掌和脚底皮纹模式的对内和对间均方及均值进行了估计，并进行了比较。皮纹模式由指尖、手掌和脚底具有拓扑学意义的模式元素（襻和三叉点）来表示，这些元素分别及以各种组合形式进行考虑，同时还包括指尖和手掌上的嵴计数以及其他一些手掌和脚底测量值。对于所有这些性状，还获得了一些遗传参数，如基于两种双胞胎对内和对间均方的遗传方差（GCT）、同卵双胞胎的对内方差比以及协方差/方差比，并结合所有指定性状的总方差和对间方差及均值差异进行了考量。对于单独或组合考虑的指尖模式强度和嵴计数、手掌小鱼际襻H和轴三叉点t以及大多数脚底襻和三叉点，遗传参数值最高。对于一些手掌襻和测量值（如细节计数），发现其值最低。就某些模式元素而言，这些结果与基于其他亲属间相关性估计的遗传力不一致。对单个襻或三叉点及其各种组合的遗传参数进行比较表明，某些模式元素或其组合可能各自受到一个特定遗传系统的影响，该系统会改变它们的表型表达。据信，对于某些性状比例而言，所获得的结果明显受到同卵双胞胎和异卵双胞胎总方差不平等的影响。
