中国三个汉族群体C1R基因频率调查

为了解中国汉族Ｃ１Ｒ的遗传多态性，采用聚丙烯酰胺等电聚焦结合免疫斑点转移的方法检测了３个城市中无亲缘关系的３１７名中国汉族献血员，的Ｃ１Ｒ表现型。结果显示：这三个汉族群体均有Ｃ１Ｒ＊１，Ｃ１Ｒ＊２和Ｃ１Ｒ＊５等三个常见等位基团。

Investigation of C1R gene frequencies in three Han populations in China]

To reveal the C1R polymorphism in Chinese, three Han populations in Guangzhou (101 samples), Jilin (105 samples) and Chengdu (111 samples) were investigated with a technique using PAGIF followed by immunoblotting. The results showed in Chengdu the C1R * 1 = 0.5676, C1R * 2 = 0.3424 and C1R * 5 = 0.0856, in Guangzhou C1R * 1 = 0.5248, C1R * 2 = 0.2663 and C1R * 5 = 0.1089, and in Jilin C1R * 1 = 0.5381, C1R * 2 = 0.2619 and C1R * 5 = 0.1714. Three rare genes C1R * 6, C1R * 7 and C1R * 8 were found in the investigation. These indicate that the frequency of C1R * 2 is elevated from north to south which may imply a geographic cline in this locus. The cumulated heterogeneity of C1R in Han population is 61.5% which means that this polymorphic system is useful in anthropolgy as well as in forensic science.