АвторТема: Artemis project  (Прочитано 2227 раз)

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Artemis project
« : 15 Апрель 2011, 01:42:31 »
So what do I offer? ADMIXTURE analysis in possible Neolithic/Forager element runs I've been publishing. In the future I may be doing more regional and historically more recent stuff as well, if possible.

http://dioegenesartemis.blogspot.com/

Оффлайн Valikhan

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Re: Artemis project
« Ответ #1 : 17 Апрель 2011, 11:38:12 »
http://dioegenesartemis.blogspot.com/
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I've done a supervised run on some of the samples I've been receiving. The set up was identical to a previous one, with three poles, Amerindian (unadmixed Totonac+Surui+Karitiana); Siberian (Unadmixed Nganasan); and Fertile Crescent (Egyptians). Results are basically identical, so I'm only publishing the new data:
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For some reason, just as in previous runs, if Fertile Crescent-like segments are pulled away by a suitable pole, Europeans with ancestry from the North or from mountainous regions have a small but detectable amount of DNA segments clustering with those of Amerindians. Other segments cluster with those of nearby Siberians. Samples from more Central/Southern or presumably fertile regions show such segments to a much smaller degree, being almost completely attracted to the Fertile Crescent pole.


Дочкин CAsia
Amerindian         - 1.99%
Siberian             - 55.67%
Fertile Crescent  - 42.34

Оффлайн KartveliАвтор темы

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Re: Artemis project
« Ответ #2 : 17 Апрель 2011, 15:44:07 »
У меня (Georgia1)

Fertile crescent - 97.51%
Siberian - 1.48%
Amerindian - 1.01%

Оффлайн Valikhan

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Re: Artemis project
« Ответ #3 : 20 Апрель 2011, 14:32:33 »
В новой версии выделился новый жёлтый компонент, который автор назвал центрально-азиатским.

http://dioegenesartemis.blogspot.com/

CAsia:

CA            40.09%
Europe       38.54%
Siberia       20.13%
West Africa 0.69%
И на грани исчезновения что-то вроде как австралоидное.

Сам автор советует не обращать внимания на очень маленькие компоненты. Хотя в моём случае может оказаться и правдой, мито обязывает.

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Re: Artemis project
« Ответ #4 : 20 Апрель 2011, 15:19:44 »
Вообще-то, митоданные в BGA анализах (подобноы Artemis) обычно исключаются.

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Re: Artemis project
« Ответ #5 : 23 Апрель 2011, 21:06:04 »
Вообще-то, митоданные в BGA анализах (подобноы Artemis) обычно исключаются.

Я имел в виду что мито характерна для того региона - австронезо-австоразиатского

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Re: Artemis project
« Ответ #6 : 23 Апрель 2011, 21:07:35 »
http://dioegenesartemis.blogspot.com/

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So I'm restating my model in a more detailed manner. My confidence is not extremely high, but I think this is the simpler model to explain patterns.
 1) The first Neolithic people in the World are born in the Mesopotamia/Levant/Anatolia around 10.000BC
 2) Europe like all of Northern Eurasia (and the Americas) is inhabited by Siberian/Amerindian-akin foragers
 3) Most of Africa is inhabited by San/Pygmy-akin foragers
 4) Climate change leads to the Green Sahara, a savanna-like environment with very large lakes and river valleys, inhabited by peoples existing in a gradient of DNA variation, much as Siberians/Amerindians. To the west, these people are more West-African-like, to the East more East-African-like. In the Northeast and Nile valley a related people, similar but distinct to both modern West and East Africans, develops incipient Neolithic capabilities.
 5) Mesopotamians reach a critical point in their Neolithic evolution. They then expand in all directions namely: Western Anatolia and Europe; Caucasus and Steppe river valleys; Iran plateau and India; and also Southwest Asia and into the Nile itself. Due to prolonged genetic and environmental contact with neighbouring peoples, replacement is incomplete, especially in the more developed Nile valley. Replacement is largely complete in Europe and the Northwest of the Subcontinent though.
 6) Thus a western subset of the Mesopotamian/Anatolian/Levantine core expands into the Med and Atlantic regions; and up the Balkans into the fertile Central European river valleys. A Northeastern subset into the Caucasus and Steppe. And a related Eastern subset into Iran and India.
 7) The Nile populations are absorbed by invading Southwestern subset Mesopotamian populations. This new hybrid population reaches a balance around 6000BC and then expands into the Green Sahara absorbing West and East-African-like foragers and semi-foragers in the process. Berber languages are born in the area.
 8)The Sahara dries up and refugees with variable Neolithic capabilities flee to North Africa, the Sahel region, East Africa and back to the Nile valley.
 9) All the environmental stress and ensuing selection of organizational and food producing strategies leads to the evolution of a more advanced Neolithic lifestyle in Egypt. Food surpluses become more abundant. A new more efficient critical point is reached and a new Neolithic wave is born, carrying Afro-Asiatic tongues. It expands from Egypt in all directions. Egyptian Civilization is born.
 10) Afro-Asiatic speakers migrate into Mesopotamia itself, as well as Anatolia and all over the Mediterranean following the routes of earlier Anatolian migrations. Sumerian becomes extinct and is replaced by Akkadian.
 10) At some point (first or second Nile wave) North Africans spill into Iberia, blending with majority Anatolian elements mostly into fertile coastal regions in the West and South of the peninsula.
 12) The West and East Anatolian (Mesopotamian) waves clash in the Northern European plains. The resulting melting pot of seeds, ideas and genes is archaelogically known as the Corded Ware culture. A new Neolithic lifestyle adapted to cold and sandy soils is born, depending on Rye monoculture and other innovations. This people then expand into Scandinavia, British Isles, and to a smaller degree into Western France and Iberia, blending with Wheat-planting West Wave Basque-like peoples but bypassing the modern Basque country. Militarized elites bring the horse from the steppe simultaneously or following later. In the opposite direction, movements into Siberia, and directly from the Steppe into India begin.

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Re: Artemis project
« Ответ #7 : 16 Май 2011, 15:57:06 »
http://dioegenesartemis.blogspot.com/



CAsia
Siberian2 -   59.34%
WMPC -       3.20%
NMPC -       12.90%
WMPC+NC - 2.68%
EMPC -       20.14%
SIberian3 -  1.73%

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Summarily:
 -WMPC: "West Mesopotamian Core", referred to before as "Western Wave". First wheat planting Neolithic colonization of the Mediterranean and Western Europe. I think they came from the Levant and Anatolia. I think it may correspond to Megalithic and Danubian archaeological horizons. In colder climes, this wave probably only occupied wheat-congenial regions, leaving less adequate ones to foragers. They're best represented today in Basques, Sardinians, and also at a lower lever in Western Europeans in general. Possibly with high R1b (and I?) Y-haplogroups
 -NMPC: referred to before as the "eastern wave". Cold, poor-soil-adapted first Neolithic wave, maybe due to innovations such as winter-rye. Expanded North into the Steppe rivers from a homeland possibly in the Eastern Iranian Plateau, Caucasus range or Northern Mesopotamia. Later, after adaptation, it would have spread throughout cold and sandy soils in all of Europe, especially in the North, bypassing rich agricultural areas already inhabited at high densities by WMPC people. Possibly with high R1a Y-haplogroup levels. mit-haplogroups introduced by this wave into WMPC areas might explain why there's a "mit-DNA gap" between Danubian remains and modern Central Europeans. I would tend to identify the beginnings of NMPC expansion into Central and Western Europe with the Corded Ware culture. This may have been also the "melting pot" from where East Slavs began their long expansion towards the Pacific.
 -WMPC+NC: synthesis of WMPC early intruders into Egypt and local Nile Core elements. Referred before as "Second Wave".
 -WMPC+NWAfr: synthesis of Green-Sahara derived native North West Africans and WMPC. I think the expansion of this element into Iberia and beyond may have happen very early on (much earlier than the second wave in the East), at the time of initial WMPC colonization of the region via the Northern Mediterranean route.
 -EMPC: East Mesopotamian Core. Patterns of NMPC and WMPC suggest to me this is a local, more eastern element that underwent expansion into the NMPC and WMPC homelands in ancient times, before the second wave from Egypt. I think a model of Neolithic developments generating higher surpluses and elites/specialists generally should coincide with a demographic expansion from the same region. That is any ancient people developing agricultural productivity high enough to enable them to live at much higher densities, and thus partially swamp out neighbouring related already agricultural peoples, must have produced enough food surpluses to allow relatively much larger elites/specialists and better social organization. Such secondary wave origin points should thus be identifiable archaeologically. The "Second Wave" I have identified with Egyptian Civilization (which begins at around 6000-5000 years ago, at the same time according to some studies as the early proto-Semitic expansion). Based also on ADMIXTURE patterns, I would tentatively relate the EMPC expansion with a Southern Mesopotamian homeland.
 -All these components, except for the Siberian ones, derive I think from the ancient Near East. The Siberian ones correspond to perhaps ancient traces of European hunter-gatherers. I didn't include an Amerindian pole this time, since with multiple MPC components they tend to be identified and subsumed into the NMPC I think (since NMPC and forager residual segments tend to exist in the same populations-possibly due to NMPC late occupation of much of the colder, less fertile soil niche). More on that later.

 

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