送交者: afa 于 2005-5-11, 15:58:43:
回答: [新京报]DNA的秘密：北京猿人不是华夏祖先？ 由 JZ 于 2005-5-10, 17:28:35:
Look at this sentence "当时，长辈们给李辉的说法是，他们就是上海的原住民。直到李辉到云南傣族去采样时才恍然发现，傣族的语言他几乎都能听懂；而与水族人交流，李辉更为惊讶，连那儿的悄悄话、私房话，他都能听懂。回到上海后，他就给自己抽血分析，发现傣族、水族和他自己身上都带有M119突变。" How could it be?
Ethnic groups in China are almost defined by culture, instead of by specific genetic characters. Meanwhile, some small ethnic groups might have undergone population fragmentation and genetic drift in the past, and this would cause a high frequency of certain haplotype but with low genetic diversity. Construct the past history from genetic data is possible, but this could not be the universal method to define the detailed migration route.