Scientists have successfully discovered one of modern humans’ ancient lineages through the sequencing of genes of the Southern African Khoisan tribe’s people. This is the first time that the history of humankind populations has been analyzed and matched to Earth’s climatic conditions over the last 200,000 years. They sequenced the genome of five living individuals from a hunter/gatherer tribe in Southern Africa, and compared them with 420,000 genetic variants across 1,462 genomes from 48 ethnic groups of the global population. Through advanced computation analysis, they found that these Southern African Khoisan tribes people are genetically distinct not only from Europeans and Asians, but also from all other Africans. The team also found that there are individuals of the Khoisan population whose ancestors did not interbreed with any of the other ethnic groups for the last 150,000 years and that Khoisan was the majority group of living humans for most of that time until about 20,000 years ago. It means its now possible to use genetic sequencing to reveal the ancestral lineage of any ethnic group even up to 200,000 years ago, if non-admixed individuals are found, like in the case of the Khoisan. The new data gathered will also enable scientists to better understand how the human genome has evolved and hopefully lead to more effective treatment options for certain genetic diseases and illnesses
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