Juberg R C, Morgan L Y, Faust C C
Am J Phys Anthropol. 1980 Jan;52(1):7-12. doi: 10.1002/ajpa.1330520103.
We searched for single gene effects in determining digital patterns and compared with the evidence for monogenic determination in Israelis (Slatis et al., '76). Our subjects were 108 parents from central Louisiana and 123 of their offspring; there were 127 females and 104 males ranging in age from eight to 66 years. Arches on the thumb--Among 11 subjects, two were bilateral, and three pairs were related, two as parent-child and one as sib-sib; the findings support the concept of an incompletely penetrant dominant gene. Radial loops on the thumb--three occurred unilaterally in unrelated subjects. Ulnar loops (U) and whorls (W) on the thumb--Phenotype frequency was 104 UU, 65 UW, 47 WW, 15 other. The proportion of UU offspring was highest with both UU parents and diminished as the parents had increasingly more W, supporting the single locus hypothesis. Arches (A) on the fingers--71 A, 160 non-A showed a greater A frequency than in the Israelis. The proportion of A offspring was highest with both A parents and diminished as the parents became non-A. Sequence WWUWW--Among nine subjects, one was bilateral, two left, and six right; two pairs related as parent-child and sib-sib. Sequence WUUWW--Among five subjects, one was bilateral, and three were related as parent-offspring. Radial loops on index fingers--Frequency of 32% was greater than in the Israelis. Middle fingers--86% were U, 73% being bilateral. Radial loops on ring and little fingers--Among eight unilateral subjects, none was related. Ulnar loops and whorls on ring fingers--Proportion of UU offspring was greatest with both UU parents and diminished as parents became WW. We conclude that the Louisianians showed evidence for single gene effects similar to that of the Israelis.
我们研究了单基因在决定指纹模式中的作用，并与以色列人（斯拉蒂斯等人，1976年）单基因决定的证据进行了比较。我们的研究对象是来自路易斯安那州中部的108对父母及其123名后代；其中有127名女性和104名男性，年龄在8岁至66岁之间。拇指上的弓型纹——在11名受试者中，2人双侧出现，3对有亲属关系，其中2对为亲子关系，1对为同胞关系；这些发现支持了不完全显性基因的概念。拇指上的桡侧箕型纹——3例单侧出现在无亲属关系的受试者中。拇指上的尺侧箕型纹（U）和涡型纹（W）——表型频率为104例UU、65例UW、47例WW、15例其他。父母双方均为UU时，UU后代的比例最高，随着父母中W型纹越来越多，该比例逐渐降低，支持单基因座假说。手指上的弓型纹（A）——71例A，160例非A显示A频率高于以色列人。父母双方均为A时，A后代的比例最高，随着父母变为非A，该比例逐渐降低。序列WWUWW——在9名受试者中，1人双侧出现，2人左侧出现，6人右侧出现；2对为亲子关系和同胞关系。序列WUUWW——在5名受试者中，1人双侧出现，3人为亲子关系。食指上的桡侧箕型纹——32%的频率高于以色列人。中指——86%为U型纹，73%为双侧出现。无名指和小指上的桡侧箕型纹——在8例单侧出现的受试者中，无亲属关系。无名指上的尺侧箕型纹和涡型纹——父母双方均为UU时，UU后代的比例最大，随着父母变为WW，该比例逐渐降低。我们得出结论，路易斯安那人显示出与以色列人相似的单基因效应证据。
