内蒙古达斡尔族舌运动类型的遗传学研究

调查了内蒙古达斡尔族舌运动类型（卷舌、叠舌、翻舌、尖舌、三叶舌），共480例（男239例，女241例）。研究结果显示：（1）卷舌、叠舌、翻舌、尖舌、三叶舌出现率分别为80．42％、4．58％、31．25％、81．88％、31．46％；（2）卷舌、三叶舌出现率存在性别间明显差异；（3）卷舌基因与翻舌、三叶舌基因间存在互作关系，翻舌基因与叠舌、尖舌、三叶舌基因间存在互作关系；（4）卷舌、叠舌、翻舌、三叶舌的出现率存在民族间或种族间差异。

Genetic Studies of Tongue Moving Types in Daur Nationality of Inner Mongolia

A sample of 480 cases (239 males, 241 females) of Daur nationality in Inner Mongolia was inves tigated on 5 tongue moving types including rolling, folding, twisting, pointed and clover-leaf tongues. The results revealed as follows: The freqencies of rolling, folding, twisting, pointed and clover-leaf tongues were 80.42%, 4.58%, 31.25%, 81 .88%, and 31.46%, respectively. Significant sexual difference was showed in the frequency of rolling and clover-leaf tongues. Furthermore, some genetic interaction occured between twisting tongue and the other 4 tongue moving types, rolling tongue and clover-leaf tongue,respectively. The 5 tongue moving types but pointed tongue showed national or racial difference.