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An interactive map of human genetic history revealed

An interactive map of human genetic history revealed | Researching Genealogy Online | Scoop.it

The interactive map produced by researchers from Oxford University and UCL (University College London), details the histories of genetic mixing between each of the 95 populations across Europe, Africa, Asia and South America spanning the last four millennia.

 

The study, published this week in Science, simultaneously identifies, dates and characterises genetic mixing between populations. To do this, the researchers developed sophisticated statistical methods to analyse the DNA of 1490 individuals in 95 populations around the world. The work was chiefly funded by the Wellcome Trust and Royal Society.

 

'DNA really has the power to tell stories and uncover details of humanity's past,' said Dr Simon Myers of Oxford University's Department of Statistics and Wellcome Trust Centre for Human Genetics, co-senior author of the study.

 

'Because our approach uses only genetic data, it provides information independent from other sources. Many of our genetic observations match historical events, and we also see evidence of previously unrecorded genetic mixing. For example, the DNA of the Tu people in modern China suggests that in around 1200CE, Europeans similar to modern Greeks mixed with an otherwise Chinese-like population. Plausibly, the source of this European-like DNA might be merchants travelling the nearby Silk Road.'

 

The powerful technique, christened 'Globetrotter', provides insight into past events such as the genetic legacy of the Mongol Empire. Historical records suggest that the Hazara people of Pakistan are partially descended from Mongol warriors, and this study found clear evidence of Mongol DNA entering the population during the period of the Mongol Empire. Six other populations, from as far west as Turkey, showed similar evidence of genetic mixing with Mongols around the same time.

 

'What amazes me most is simply how well our technique works,' said Dr Garrett Hellenthal of the UCL Genetics Institute, lead author of the study. 'Although individual mutations carry only weak signals about where a person is from, by adding information across the whole genome we can reconstruct these mixing events. Sometimes individuals sampled from nearby regions can have surprisingly different sources of mixing.

 

'For example, we identify distinct events happening at different times among groups sampled within Pakistan, with some inheriting DNA from sub-Saharan Africa, perhaps related to the Arab Slave Trade, others from East Asia, and yet another from ancient Europe. Nearly all our populations show mixing events, so they are very common throughout recent history and often involve people migrating over large distances.'

 

The team used genome data for all 1490 individuals to identify 'chunks' of DNA that were shared between individuals from different populations. Populations sharing more ancestry share more chunks, and individual chunks give clues about the underlying ancestry along chromosomes.

 

'Each population has a particular genetic 'palette', said Dr Daniel Falush of the Max Planck Institute for Evolutionary Anthropology in Leipzig, co-senior author of the study.

 

'If you were to paint the genomes of people in modern-day Maya, for example, you would use a mixed palette with colours from Spanish-like, West African and Native American DNA. This mix dates back to around 1670CE, consistent with historical accounts describing Spanish and West African people entering the Americas around that time. Though we can't directly sample DNA from the groups that mixed in the past, we can capture much of the DNA of these original groups as persisting, within a mixed palette of modern-day groups. This is a very exciting development.'


Via Dr. Stefan Gruenwald
Marylène Goulet's insight:

Pretty technical but pretty interesting too!

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Researching Genealogy Online
Tools, useful websites and lists, genealogy databases, everything the geek-genealogist needs to perform their research online. Including Top Posts and News from professional and amateur genealogists out there on the web.
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Top 100 Genealogy Sites Mega-Search | GeneaBloggers

Top 100 Genealogy Sites Mega-Search | GeneaBloggers | Researching Genealogy Online | Scoop.it
Looking for a new way to search many genealogy sites at once? Check out the new Top 100 Genealogy Sites Mega-Search engine at Many Roads.
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Fawn B Morgan's curator insight, May 18, 2015 12:22 AM

Mega-Search! 

 

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Genealogy Insider - Search for Railroad Worker Ancestors in New, Free Online Index

Genealogy Insider - Search for Railroad Worker Ancestors in New, Free Online Index | Researching Genealogy Online | Scoop.it
Dasblog tool. Welcome to my Blog. The opinions expressed herein are my own personal opinions.
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Ancestry Collaborates with Gannett to Digitally Archive More Than 80 U.S. Newspapers

Ancestry Collaborates with Gannett to Digitally Archive More Than 80        U.S. Newspapers | Researching Genealogy Online | Scoop.it
Ancestry teaming up with Gannett for huge newspaper digitizing project (PRESS RELEASE) - http://t.co/fJhiAnju5x
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Study Maps 88 Million Historical Relationships

Study Maps 88 Million Historical Relationships | Researching Genealogy Online | Scoop.it
According to legend, Isaac Newton emerged as a colossus in modern physics in 1666 after a legendary bonk to the head by a falling apple triggered his Universal Law of Gravitation. John Milton penned his epic poem “Paradise Lost” less than a year later. Though they occupied radically different intellectualRead More
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Fawn B Morgan's curator insight, October 27, 2015 11:29 AM

The degrees of me...

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Locating German WW1 & WW2 War Casualties & Prisoners

Locating German WW1 & WW2 War Casualties & Prisoners | Researching Genealogy Online | Scoop.it
  This 'compendium' page is created to provide ManyRoads' readers with a centralized location to find information, pointers, and links to assist in the search for WW1 & WW2 German War Casu...
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Connecticut State Library Receives New Grant for Newspaper Digitization - Connecticut State Library

    The Connecticut State Library is pleased to announce that it has received a supplemental award of $250,000 from the National Endowment for the Humanities (NEH) to continue to digitize historically significant Connecticut newspapers through the National Digital Newspaper Program (NDNP) over the next two years. This grant brings the total award amount the …
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CWGC - COMMONWEALTH WAR GRAVES COMMISSION LAUNCHES NEW ONLINE RESOURCES TO COMMEMORATE VJ DAY

CWGC - COMMONWEALTH WAR GRAVES COMMISSION LAUNCHES NEW ONLINE RESOURCES TO COMMEMORATE VJ DAY | Researching Genealogy Online | Scoop.it
Commonwealth War Graves Commission
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Newly digitised records complete story of naval careers - The National Archives

Newly digitised records complete story of naval careers - The National Archives | Researching Genealogy Online | Scoop.it
We are pleased to announce the release of two newly-digitised series of naval service records, ADM 362 and ADM 363.
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Genealogia Nuestra - Our Puerto Rican and Dominican Genealogy: Navigating Dominican Republic's Archive Website ~ Archivo General de la Nacion - Part 3

Genealogia Nuestra - Our Puerto Rican and Dominican Genealogy: Navigating Dominican Republic's Archive Website ~ Archivo General de la Nacion - Part 3 | Researching Genealogy Online | Scoop.it
Genealogy research blog on families from Puerto Rico and Dominican Republic
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Edmonton Obituaries | Edmonton Public Library

Did you know that you can access Edmonton obituaries index 1950-1982 via - http://t.co/V3N9pfoe9j #genealogy #Alberta

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UpFront with NGS: URGENT! -- Arizona State Genealogy Library in jeopardy

UpFront with NGS: URGENT! -- Arizona State Genealogy Library in jeopardy | Researching Genealogy Online | Scoop.it
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Genealogy Insider - Free Online Search: Digitized Welsh Newspapers

Dasblog tool. Welcome to my Blog. The opinions expressed herein are my own personal opinions.
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Help the New York Public Library With a Massive Archival Project

Help the New York Public Library With a Massive Archival Project | Researching Genealogy Online | Scoop.it
The 6,000-plus handwritten real estate records hold valuable information about the lives of immigrants who helped create New York.
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Keeping Tabs On Suffragettes: The Official Watchlist

Keeping Tabs On Suffragettes: The Official Watchlist | Researching Genealogy Online | Scoop.it
To coincide with the recent nationwide release of the film ‘Suffragette’, the official watch list containing details of over 1,300 suffragette arrests has been published online by Ancestry, in association with The National Archives.
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State Library, FamilySearch Partner to Make Genealogy Records Accessible

State Library, FamilySearch Partner to Make Genealogy Records Accessible | Researching Genealogy Online | Scoop.it
Today, Arizona has joined 35 other states in making the Arizona State Library, Archives and Public Records genealogy resources available online via FamilySearch.org, the website for FamilySearch International, a nationally recognized nonprofit...
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Wisconsin Maps, Map Collections & Gazetteers

Wisconsin Maps, Map Collections & Gazetteers | Researching Genealogy Online | Scoop.it
Wisconsin maps and atlases, online map collections, and gazetteers, or directories. Free online geographic materials from Wisconsin's past. Welcome!
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Luxroots.com: Luxembourg family history searches easier thanks to online archive

Luxroots.com: Luxembourg family history searches easier thanks to online archive | Researching Genealogy Online | Scoop.it
More than one million Luxembourg birth certificates from 1600 to 1923 have been made available online thanks to a voluntary project.
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IMPERIAL PRISONERS OF WAR HELD IN JAPAN ~ New Collections Release FROM FORCES WAR RECORDS!

IMPERIAL PRISONERS OF WAR HELD IN JAPAN ~ New Collections Release FROM FORCES WAR RECORDS! | Researching Genealogy Online | Scoop.it
New Collections Release - Imperial Prisoners of war held in Japan Record Qty: 56,000+ Original Source: Transcribed from the National Archive reference WO392/23-26 ‘British Prisoners Of War Held In...
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In the Hidden History of WWII, Italian Enemy Aliens Were Interned, Restricted - New England Historical Society

In the Hidden History of WWII, Italian Enemy Aliens Were Interned, Restricted - New England Historical Society | Researching Genealogy Online | Scoop.it
During World War II, 600,000 Italian enemy aliens were declared in the United States, despite having several sons fighting for America.
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venarbol's curator insight, August 18, 2015 6:12 AM

Durant la seconde guerre mondiale, 600.000 Italiens vivant aux USA ont été déclarés ennemis du pays, alors même que leurs fils combattaient dans les rangs américains.

 

Durante la seconda guerra mondiale, 600.000 italiani che vivono negli USA sono stati dichiarati nemici del paese, mentre i loro figli combattevano nel'esercito americano.

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35,000 North Carolina Pension Confederate Applications 1901-1946 Going Online

35,000 North Carolina Pension Confederate Applications 1901-1946 Going Online | Researching Genealogy Online | Scoop.it
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Researchers suggest another ancestry for Native Americans - Boston Globe

Researchers suggest another ancestry for Native Americans - Boston Globe | Researching Genealogy Online | Scoop.it
The founding of the Americas, long attributed to a single population that traversed a frozen ice bridge across the Bering Strait, may reflect a more diverse origin than previously suspected, a Harvard Medical School study finds.
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Fawn B Morgan's curator insight, October 27, 2015 11:34 AM

Hey, Grandma Polly!

 

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All about genealogy and family history - Overview of Native American Research - Ancestry.com Wiki

All about genealogy and family history - Overview of Native American Research - Ancestry.com Wiki | Researching Genealogy Online | Scoop.it
Interested in #NativeAmerican research? Read about it in "The Source: A Guidebook to American Genealogy." FREE here: http://t.co/v1FEhtqtGk
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Irish Genealogy News: FamilySearch adds transcripts of 1871 E&W census

Irish Genealogy News: FamilySearch adds transcripts of 1871 E&W census | Researching Genealogy Online | Scoop.it
RT @Irish_Genealogy: England & Wales Census 1871 (600,000+ Irish-born) added to @FamilySearch database: http://t.co/4aN4TDNCAW #genealogy #…
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New McGill Student Publications collection up at the Internet Archive | The Dark Room

New McGill Student Publications collection up at the Internet Archive | The Dark Room | Researching Genealogy Online | Scoop.it
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Genealogy Canada: LAC Update: Digitization of First World War Service Files

Genealogy Canada: LAC Update: Digitization of First World War Service Files | Researching Genealogy Online | Scoop.it
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