History of Click-Speaking Populations of Africa Inferred from Genetic Variants pdf epub mobi txt 电子书下载 2024

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Sarah A. Tishkoff

Oxford Academic

2007-10

USD 50.00

Hardcover

9780110092140

图书标签: 民族志历史语言学分子生物学世界史前史

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发表于2024-11-07

History of Click-Speaking Populations of Africa Inferred from Genetic Variants epub 下载 mobi 下载 pdf 下载 txt 电子书下载 2024

History of Click-Speaking Populations of Africa Inferred from Genetic Variants pdf epub mobi txt 电子书下载 2024

图书描述

Little is known about the history of click-speaking populations in Africa. Prior genetic studies revealed that the click-speaking Hadza of eastern Africa are as distantly related to click speakers of southern Africa as are most other African populations. The Sandawe, who currently live within 150 km of the Hadza, are the only other population in eastern Africa whose language has been classified as part of the Khoisan language family. Linguists disagree on whether there is any detectable relationship between the Hadza and Sandawe click languages. We characterized both mtDNA and Y chromosome variation of the Sandawe, Hadza, and neighboring Tanzanian populations. New genetic data show that the Sandawe and southern African click speakers share rare mtDNA and Y chromosome haplogroups; however, common ancestry of the 2 populations dates back >35,000 years. These data also indicate that common ancestry of the Hadza and Sandawe populations dates back >15,000 years. These findings suggest that at the time of the spread of agriculture and pastoralism, the click-speaking populations were already isolated from one another and are consistent with relatively deep linguistic divergence among the respective click languages.

History of Click-Speaking Populations of Africa Inferred from Genetic Variants 下载 mobi epub pdf txt 电子书