人类指端箕形纹的遗传学研究

Genetics study on loop patterns of Human fingertips

本文对汉族446个家庭,共1788名成员的指端箕形纹的遗传特点进行了研究。结果发现,指端箕形纹也受着遗传的控制,其遗传方式不是由外显充分的单基因常染色体显性或隐性遗传。根据Falconer第一公式计算其遗传度为76.38％,支持指端箕形纹亦属多基因遗传的观点。

Geretic traits of fingertip loop pattern were investigated in 1788 people from 446 independent families of Han nationality. The results show that fingertip loop patterns were controled by genetic factors but not by single autosomal dominant gene or autosomal recessive gene. Accoring to filcolner's first formular. the heritability of digital loop patterns was 76. 38%, supporting the idea that the fingertip loop pattern also belongs to multiple gene genetic.