Tag: beringia

Dene-Yeniseian, Eskimo-Aleut, and Chukotko-Kamchatkan

siberia-belkachi-ymyyakhtakh
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This post is part of a draft on South Siberian language homelands and Sprachbünde.

At least three major genetic changes have been described to date involving the Lena and Kolyma regions in East Siberia, and all are probably associated with some of the archaeological and linguistic developments that led to the known Early Modern distribution of languages in the Russian Far East and in Northern America.

The following is a tentative description of such intertwined linguistic-archaeological-genetic developments, based on the few available data from each field. For this guesswork, first genetic-archeological results, and then plausible … Read the rest “Dene-Yeniseian, Eskimo-Aleut, and Chukotko-Kamchatkan”

Deep population history of North, Central and South America

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Open access Reconstructing the Deep Population History of Central and South America, by Posth et al. Cell (2018).

Abstract:

We report genome-wide ancient DNA from 49 individuals forming four parallel time transects in Belize, Brazil, the Central Andes, and the Southern Cone, each dating to at least ∼9,000 years ago. The common ancestral population radiated rapidly from just one of the two early branches that contributed to Native Americans today. We document two previously unappreciated streams of gene flow between North and South America. One affected the Central Andes by ∼4,200 years ago, while the other explains an affinity

… Read the rest “Deep population history of North, Central and South America”

Long-term genetic structure in ancestral Native Americans, consistent with the Beringian ‘standstill model’

New article, Terminal Pleistocene Alaskan genome reveals first founding population of Native Americans, by Moreno-Mayar et al.

Abstract:

Despite broad agreement that the Americas were initially populated via Beringia, the land bridge that connected far northeast Asia with northwestern North America during the Pleistocene epoch, when and how the peopling of the Americas occurred remains unresolved. Analyses of human remains from Late Pleistocene Alaska are important to resolving the timing and dispersal of these populations. The remains of two infants were recovered at Upward Sun River (USR), and have been dated to around 11.5 thousand years ago (ka). Here,

… Read the rest “Long-term genetic structure in ancestral Native Americans, consistent with the Beringian ‘standstill model’”