Stop the Insanity!
There are a contingent of White Pretendians and Wannabe Aboriginals who have been activated by white supremacist groups through money and through media coverage. These settler-colonial powers seek to diminish, disempower and disenfranchise Amerindigenous groups. They disingenuously use language of American Indians’ and First nations’ from Anglo America, who have endeavored mightily to be identified as a true nations with self governance and membership policies that are not racialized. However, that rhetoric can be weaponized by several non-native groups to force inclusion, reinforce the melting pot theory, reinforce American myths of unity & equity, a common human heritage and equal rights to OUR land. They also use these ideas, coupled with this one tiny bit of genetic evidence (austronesian DNA signal) to confuse people in TUSOAN (the United States of America) racialized landscape to diminish the full bloods in both Anglo America, and Latin America. But this new and spreading set of tropes is particularly effective and causing division between Latinos and African-Americans because both groups are often tri-racial and both see to needlessly fight over scraps from the white man’s table. Furthermore, it is notable that the very effective Spanish Caste system has finally made it to Anglo America and their strategists. But where the Spanish used it to WHITENIZE the lands & people that they stole, the USA & Canada are using it to make everybody equally indigenous under some weird and dishonest shared historical narrative. Below you will see the current thinking on this little segment of DNA and its origin.
The hypothesis that the Population Y (or Australasian) signal was once widespread in East Asia before being lost to genetic drift is a leading explanation for its patchy distribution today. This "ghost population" theory suggests that the genetic segments found in South America are remnants of a lineage that was once part of the broader East Asian gene pool.
Evidence Supporting the "Lost in Asia" Hypothesis
Ancient East Asian Diversity: Genomic studies of ancient remains, such as the 40,000-year-old Tianyuan Man near Beijing, show that early East Asians were already genetically diverse. Some of these early individuals carried lineages that are more closely related to present-day Southeast Asians and Australasians than to modern Northern Asians.
The "Ghost Population" Model: Scientists use the term "ghost population" specifically because they can statistically detect this ancestry in modern groups—like the Suruí and Karitiana of the Amazon—even though it has mostly disappeared from the Asian mainland. This implies the population existed but was later replaced or absorbed by subsequent migrations in Asia.
Genetic Drift in Small Founder Groups: The initial migration into the Americas involved small, isolated populations (often called the Beringian Standstill). In such small groups, rare genetic variants—like the Population Y signal—are highly susceptible to genetic drift, where they either disappear entirely or, by chance, become a significant part of the descendant population.
Presence in "Refuge" Populations: The fact that this signal is found in both the Arctic and South America—two ends of the migration route—suggests it was present in the original founding groups but was "weeded out" in most other North American populations as they expanded and underwent further bottlenecks.
East Asian Population Shifts: Major demographic shifts in East Asia, particularly the expansion of farming populations roughly 10,000 years ago, likely overrode these older Paleolithic lineages. This would leave only trace amounts or "islands" of the original diversity in isolated or peripheral groups.
Summary of the Mechanism
The theory posits that the Population Y signal was a minority component in the diverse East Asian/Siberian groups that first moved toward Beringia. While it was largely "diluted" or lost in most lineages due to the extreme bottlenecks of the Ice Age, it was preserved in a few specific founding groups that settled in the Amazon and parts of the Pacific coast.
Where is the DNA? What does it look like? How is it determined?
The "Population Y" signal is not a single contiguous block of DNA but is detected as an excess of alleles across the entire autosome (chromosomes 1 through 22). Because this is a "ghost population" signal found through statistical modeling (specifically the D-statistic), it surfaces as a subtle pattern across multiple chromosomes rather than one identifiable "Population Y segment."
However, here is how those signals manifest and their approximate sizes:
1. Where it surfaces
Autosomal-wide: The signal is found by comparing the genomes of Amazonian groups (like the Suruí and Karitiana) to Australasian groups. The "sharing" is distributed across the 22 non-sex chromosomes.
Notable Concentration: While the signal is genome-wide, researchers often highlight specific segments in the Amazonian and Andean populations where the centimorgan (cM) links are most "clumped." These are typically found on the longer autosomes (like Chromosomes 1, 2, and 6) simply because they have more space for recombination to preserve ancestral blocks.
2. Segment Size (Length)
Small and Fragmented: Because the migration happened at least 15,000 to 20,000 years ago, recombination has chopped the original ancestral DNA into very small pieces.
Typical lengths: Most shared segments are estimated to be under 5–10 cM in length. Segments this small are characteristic of very ancient ancestry (hundreds of generations ago).
Statistical "Excess": Rather than finding one "long 50 cM segment" (which would suggest a great-grandparent), scientists find that Amazonians share a higher-than-expected number of these tiny 1–3 cM segments with Papuans and Andaman Islanders compared to other Native Americans.
3. Why the location stays "the same"
As noted, these markers often appear at the same locations on the chromosomes across different individuals. This happens because:
Founder Effect: If the original "Population Y" group was very small, they only brought a limited variety of genetic "templates."
Recombination Coldspots: Some areas of the human genome recombine less frequently, meaning ancestral segments in those specific spots (like near the centromeres) are more likely to survive intact across millennia.
The "Population Y" signal is most famously concentrated in the Amazon, but subsequent research has identified it in several other groups across South and North America.
Amazonian and South American Groups
The signal was first and most strongly identified in the Tupi-speaking and Ge-speaking tribes of Brazil. More recent studies have expanded this to coastal and Andean populations:
Suruí: One of the two primary groups where the signal was first detected.
Karitiana: The other founding group for the Population Y hypothesis.
Xavánte: A Ge-speaking group from the Central Brazilian Plateau.
Guaraní Kaiowá: Located in central-west Brazil.
Chotuna: Descendants of the Mochica people on the Pacific coast of Peru.
Sechura and Narihualá: Other coastal groups in northern Peru showing this affinity.
Arctic and North American Groups
While the signal is most prominent in South America, researchers have found traces or "excess sharing" in specific northern populations, suggesting the signal traveled through North America before being largely lost to genetic drift:
Aleutian Islanders: Some studies have noted a subtle Australasian-related signature in ancient and modern Aleut populations.
Athabaskan Speakers: Certain Na-Dene speaking groups in the Arctic and Subarctic show complex ancestral layers that some researchers link to a similar early migration wave.
Mixe: A group in Oaxaca, Mexico, used in several studies as a point of comparison; while they have less than Amazonian groups, they have been part of the discussion regarding the spread of this lineage through Central America.
Why these groups?
The signal is most "visible" in these specific tribes because they remained relatively isolated for thousands of years. In more populous or migratory groups, this rare "ghost" ancestry was more easily diluted or replaced by later waves of migration from Northern Asia.
CONCLUSION
This video is from one of the YouTube contact creators that I like, named Stefan Milosavljevich ( https://www.youtube.com/@StefanMilo & https://bsky.app/profile/stefanmilo.bsky.social ) and as he states in the video, you have to remember that in the populations where this DNA signal shows up, it only shows up as 1-3% part of 3.2 billion letters. These folks are Native American. They are related to other Native Americans. These signals are ancient, not recent. Not part of some fantastical recent Trans-Pacific migration. However, where he misses the mark is how these things are “interpretive” by both experts and lay people. That interpretation must undergo rigorous peer review, debate and further research before people can make conclusions. As Stefan references in the video and confirms with the experts, this signal could be Denisovan contributions to all humans from the region but in 2024, there wasn’t enough data to confirm or deny that identification. Since then some papers have estimated that Peoples of the Americas carry about 0.2% Denisovan ancestry and 2-4% Neanderthal but in both cases, but data is still severely lacking. These premature and often wishful conclusions continue to hurt the sovereignty and rights of Native peoples. Most egregious actors are not white settlers or black settlers but Mestizos who themselves carry Native ancestry but hate themselves and the Indigenous they come from. These Mestizos, especially from Brazil, would rather these skeletons and people be from the Old World (even if African) because Indigenous people are the most hated people in the Americas. I hope he sees this and revisits his video explanation.
Please stop the madness! If you’re from another oppressed group like Jewish people or African people stop kicking down at Indigenous people of the Americas. We are at the bottom rung in this hemisphere. Take a look at history and current events? We didn’t even have the luxury of being “dehumanized”. We were never considered human. We were obstacles like boulders or wolves to be cleared from the land. Our “slavery” was one of attrition. We were fed and watered poorly. We weren’t considered livestock to be preserved and bred over time. We were worked to death in the Caribbean and Mexico and as we died, we were replaced by Natives of the Puget Sound, the Hudson Bay, New England and Nova Scotia. Our “slavery” continued in California until 1920, after the U.S. abolition of African slavery in 1865. Ostensibly, from the U.S. department of Labor’s own report, the United Nations and the Vatican, Central American migrant labor is very much akin to modern day slavery. Now, because of DNA, we are more like forests of rare and beautiful trees being harvested for the exotic furniture market. Our lands, our mineral wealth, our food products, our ideas of governance have been extracted, now our large clean water aquifers and our bodies are being extracted. You gotta believe you are better than this! Don’t be like European Settlers who have hurt us, oppressed us and relabeled us, simply because you benefit from the occupation of our lands and the extraction of our resources including DNA. Now stop the madness! Otherwise, you are no longer considered our allies as People of Color or victims of Settler colonial oppression!
https://m.youtube.com/watch?v=A1PMingCvxI&pp=0gcJCZoBo7VqN5tD
References:
https://www.science.org/doi/10.1126/science.adl0882
https://www.colorado.edu/today/2025/08/21/dna-extinct-hominin-may-have-helped-ancient-peoples-survive-americas
https://www.livescience.com/archaeology/human-evolution/the-first-americans-had-denisovan-dna-and-it-may-have-helped-them-survive
https://www.brown.edu/news/2025-08-21/denisovan-genes