"The evolutionary history of human spindle genes includes back-and-forth gene flow with Neandertals", PeyrΓ©gne et al 2021 biorxiv.org/content/10.11…
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πŸ‘€︎ u/gwern
πŸ“…︎ Dec 02 2021
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The evolutionary history of human spindle genes includes back-and-forth gene flow with Neandertals biorxiv.org/content/10.11…
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πŸ‘€︎ u/Jamescao_95
πŸ“…︎ Dec 03 2021
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Science: Ancient Egyptians are most closely related to Neolithic and Bronze Age samples in the Levant, as well as to Neolithic Anatolian and European populations. African gene flow in modern Egyptians occurred predominantly within the last 2,000 years. nature.com/articles/ncomm…
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πŸ‘€︎ u/OrwellWasRight69
πŸ“…︎ Sep 30 2021
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What exact methodolgy is used to figure out the direction of gene flow in case of say, Aryan migration to India?

For example, I take the instance of Central Asian migration into India.

Say geneticists studied

a) ancient bones in C.A

b) ancient bones in India

c) living people in Central Asia

d) living people in India.

Case 1: -

Say they found a particular haplogroup (A) which is present only in Central Asians, and another one (B), which is present in Indians (both living people, aka options c and d). Then they also found another haplogroup (C), which is present in both individuals.

Question 1: - How do they then determine that it was the Central Asians who migrated and not Indians? Is it due to coupling this evidence with other sorts of evidence like general climate/vegetation? Or is it due to the fact that progressively, unique genes found in Central Asians decline in quantity when moving north to south, and the unique Indian genes aren't found outside India at all (Indus Valley genes)? And if I am not wrong, Indus Valley civilization people were descended from Africans who migrated via Yemen/Oman and the historical Elamites were their cousins, so even the so-called unique Indian gene can be found outside India...how do they then describe the direction of the gene flow?

Case 2:- Say the ancient bones of Central Asia (dated to 3000 BC) showed some genes which were common between ancient bones found in India (dated to 1500 BC).

Question 2: - Does this lead to the conclusion that the migration was from CA to India, latest by 1600-1500 BC? Is there any other technique to find the timing of the gene flow?

Question 3: - Modern ancestry tests have several obscure ancient groups like Neolithic Iranian farmers, Oriental Hunter-Gatherers, BMAC etc. Are all of these from bones taken in specific areas like Zagros Mountains (for iranic hg), Central Asia and Bactria (Afghanistan)? And these bones were dated to the specific time periods when these proposed civilizations were also historically dated?

Overall, I want to understand the nuance of the genetic tests which offhandedly say, that "XYZ" group migrated to "PQR" location in "ABC" era without giving the details.

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πŸ‘€︎ u/gildesh_3211
πŸ“…︎ Aug 30 2021
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Gene just stops the intense flow of the match with a super v.redd.it/9q9q2xjl81b71
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πŸ‘€︎ u/UpperRank1
πŸ“…︎ Jul 13 2021
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Science: Ancient Egyptians are most closely related to Neolithic and Bronze Age samples in the Levant, as well as to Neolithic Anatolian and European populations. African gene flow in modern Egyptians occurred predominantly within the last 2,000 years. nature.com/articles/ncomm…
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πŸ‘€︎ u/OrwellWasRight69
πŸ“…︎ Sep 29 2021
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Ancient horse DNA reveals gene flow between Eurasian and North American horses eurekalert.org/pub_releas…
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πŸ‘€︎ u/Sorin61
πŸ“…︎ May 19 2021
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Ancient horse DNA reveals gene flow between Eurasian and North American horses eurekalert.org/pub_releas…
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πŸ‘€︎ u/IckySweet
πŸ“…︎ May 19 2021
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CIE Spotlight: Genetic structure and gene flow in the Flame Robin (Petroica phoenicea) cie-deakin.com/2021/08/03…
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πŸ“…︎ Aug 02 2021
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Gene-flow from steppe individuals into Cucuteni-Trypillia associated populations indicates long-standing contacts and gradual admixture nature.com/articles/s4159…
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πŸ‘€︎ u/ImPlayingTheSims
πŸ“…︎ Jun 18 2021
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Amur tigers are not only separated by other tiger population, but they are also separated in at least two nearly isolated populations. Natural corridors between the two localities are not good enough and abscence of gene flow could be potentially a huge threat for this cold adapted tiger reddit.com/gallery/mwdwpf
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πŸ‘€︎ u/Risingmagpie
πŸ“…︎ Apr 22 2021
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Ancient horse DNA reveals gene flow between Eurasian and North American horses eurekalert.org/pub_releas…
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πŸ‘€︎ u/OncaAtrox
πŸ“…︎ May 19 2021
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How do we know β€œNeanderthal DNA” is not human DNA found in Neanderthals because of gene flow from Humans into Neanderthals (rather than other way around)
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πŸ‘€︎ u/Nevermindever
πŸ“…︎ Jan 21 2021
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Ancient horse DNA reveals gene flow between Eurasian and North American horses eurekalert.org/pub_releas…
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πŸ‘€︎ u/SandKitten
πŸ“…︎ May 19 2021
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Il vento c'entra con la genetica degli alberi: Global wind patterns shape genetic differentiation, asymmetric gene flow, and genetic diversity in trees pnas.org/content/118/17/e…
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πŸ‘€︎ u/Ominous_Koreageek
πŸ“…︎ Apr 21 2021
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@JBiogeography: Japanese macaques' genetic structure is mainly due to northeast-southwest divergence, as a result of distribution reduction into refugia during the glacial period, followed by expansion and gene flow πŸ’ https://t.co/nuiRPDsw6t https://t.co/3IKv5xkurm mobile.twitter.com/JBioge…
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πŸ“…︎ Apr 27 2021
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Pollen-mediated gene flow and transfer of resistance alleles from herbicide-resistant broadleaf weeds cambridge.org/core/journa…
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πŸ‘€︎ u/MennoniteDan
πŸ“…︎ Apr 23 2021
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Annual aboveground carbon uptake enhancements from assisted gene flow in boreal black spruce forests are not long-lasting nature.com/articles/s4146…
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πŸ‘€︎ u/BurnerAcc2020
πŸ“…︎ Mar 11 2021
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Genetic analysis shows evidence of gene flow between humans, Neanderthals, Denisovans and a "super archaic" ancestor. It suggests inter-species mixing was common and have left traces on the human genome. 15 percent of genetic regions from the super archaic ancestors are present in modern-day humans. inverse.com/science/super…
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πŸ‘€︎ u/Evan2895
πŸ“…︎ Aug 06 2020
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Native American gene flow into Polynesia predating Easter Island settlement nature.com/articles/s4158…
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πŸ‘€︎ u/randomuuid
πŸ“…︎ Jul 08 2020
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Despite the traditional view that species do not exchange genes by hybridisation, recent studies show that gene flow between closely related species is more common than previously thought. A team of scientists now reports how gene flow between two species of Darwin's finches has affected their beaks eurekalert.org/pub_releas…
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πŸ‘€︎ u/DoremusJessup
πŸ“…︎ May 04 2020
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