Barrantes R
Instituto de Investigaciones en Salud (INISA) y Escuela de Biología, Universidad de Costa Rica, San José.
Rev Biol Trop. 1993 Dec;41(3A):379-84.
The genetic diversity of nine Amerindian tribes (Boruca, Bokota, Bribrí, Cabecar, Guatuso, Guaymí, Huetar, Kuna and Teribe) from Costa Rica and Panama were analyzed using 48 loci of enzymatic systems, blood groups and serum proteins. The average heterozygosity (H) and the frequency of polymorphisms (P) for this assemblage are relatively low (H = -0.055; P = 0.217). The genetic differentiation within tribes is also low with the exception of the Cabecar (Gst = 0.049). However it is high between tribes (Gst = 0.073). These populations have some racial admixture and negro and caucasian genes are present in different frequencies (1-30%) depending on their ecological and cultural background. Mating systems and random genetic drift should explain these results. In a broad sense the genetic diversity of these Chibchan tribes are similar to others from South America which use different languages.
利用酶系统、血型和血清蛋白的48个基因座，对来自哥斯达黎加和巴拿马的九个美洲印第安部落（博鲁卡、博科塔、布里布里、卡韦卡尔、瓜托索、瓜伊米、韦塔尔、库纳和泰里贝）的遗传多样性进行了分析。该群体的平均杂合度（H）和多态性频率（P）相对较低（H = -0.055；P = 0.217）。除卡韦卡尔部落外（Gst = 0.049），部落内部的遗传分化也较低。然而，部落之间的遗传分化较高（Gst = 0.073）。这些人群存在一些种族混合，黑人和高加索人的基因以不同频率（1%-30%）存在，这取决于他们的生态和文化背景。交配系统和随机遗传漂变应该可以解释这些结果。从广义上讲，这些奇布查部落的遗传多样性与南美洲其他使用不同语言的部落相似。
