Navigation Links
New research reveals the ancestral populations of India and their relationships to modern groups
Date:9/23/2009

al populations. "Different Indian groups have inherited forty to eighty percent of their ancestry from a population that we call the Ancestral North Indians who are related to western Eurasians, and the rest from the Ancestral South Indians, who are not related to any group outside India," said co-author David Reich, an associate professor of genetics at Harvard Medical School and an associate member of the Broad Institute of Harvard and MIT.

The finding that nearly all Indian groups descend from mixtures of two ancestral populations applies to traditional "tribes" as well as "castes." Kumarasamy Thangaraj, a senior research scientist at CCMB in Hyderabad and a co-author said, "It is impossible to distinguish castes from tribes using the data. The genetics proves that they are not systematically different. This supports the view that castes grew directly out of tribal-like organizations during the formation of Indian society."

The one exception to the finding that all Indian groups are mixed is the indigenous people of the Andaman Islands, an archipelago in the Indian Ocean with a census of only a few hundred today. The Andamanese appear to be related exclusively to the Ancestral South Indian lineage and therefore lack Ancestral North Indian ancestry.

"The Andamanese are unique," said co-author Nick Patterson, a mathematician and researcher at the Broad Institute. "Understanding their origins provides a window onto the history of the Ancestral South Indians, and the period tens of thousands of years ago when they diverged from other Eurasians." Added Singh, "Our project to sample the disappearing tribes of the Andaman Islands has been more successful than we could have hoped, as the Andamanese are the only surviving remnant of the ancient colonizers of South Asia."

The researchers' work also has surprising and important medical implications. They discovered that many groups in modern India descend from a small number of founding
'/>"/>

Contact: Nicole Davis
ndavis@broadinstitute.org
617-714-7152
Broad Institute of MIT and Harvard
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Compendia Bioscience Announces the Release of Oncomine 4 Research Edition
2. Researchers prolong the plasma half-life of biopharmaceutical proteins
3. InterMune Announces Collaboration With National Jewish Health on NIH-Supported Genetic Research in Idiopathic Pulmonary Fibrosis
4. CELLECTA, INC. to Develop New Approach for Cancer Gene Discovery in Partnership with Roswell Park Cancer Institute and Health Research, Inc.
5. Biomedical Research Organization Launches Groundbreaking National TV Campaign
6. BioNanomatrix Appoints Genomic Research Experts Charles Lee and David L. Barker as Advisers
7. Enerkem Announces Construction Start on Advanced Energy Research Facility in Edmonton, Alberta
8. InsiteResearch Market Momentum Continues to Accelerate
9. Important Step Forward in Osteoarthritis Research: Bioactive Collagen Peptides Stimulate the Regeneration of Cartilage Tissue
10. SRA International Wins $16 Million Contract from Cancer Prevention and Research Institute of Texas
11. China Biologic Products Appoints Director of Research and Development
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/25/2014)... 24, 2014 Oramed Pharmaceuticals Inc. ... focused on the development of oral drug delivery systems, ... will present at FireRock Capital,s Micro-Cap Conference. ... Conference ,Date: Tuesday, October 28, 2014 ,Time: 9:15am EST ... York City , About The ...
(Date:10/25/2014)... 2014 ... announced the addition of the  "The Global ... 2-D Nanomaterials "  report to their offering.  ... and graphene are the strongest, lightest and ... a performance-per-weight greater than any other material. ...
(Date:10/22/2014)... The North American crystal oscillator market report ... analysis and forecast of revenue. This market was valued ... reach $623.6 million by 2018, at a CAGR of ... TOC of the North American crystal oscillator market report, ... This also provides a glimpse of the segmentation of ...
(Date:10/22/2014)... Al Khaimah, UAE (PRWEB) October 22, 2014 ... game-changing life science and healthcare projects, announces the addition ... MRCGP DRCOG DCH to its advisory team. Dr. Siddiqui ... advisory team. , A graduate of University ... Siddiqui was subsequently degreed in medicine in 2001. With ...
Breaking Biology Technology:Oramed to Present at the FireRock Annual Micro-Cap Conference 2Oramed to Present at the FireRock Annual Micro-Cap Conference 3The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 2The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 3The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 4The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 2The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 3The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 4Dr. Yousef Siddiqui joins the Grace Century Advisory Team 2
... Mich., April 25 The Fraunhofer Center ... the BU,Center for Nanoscience and Nanobiotechnology hosted ... for a tour of their world class,facilities ... The intensive tour included demonstrations of ...
... April 25 /Xinhua-PRNewswire-FirstCall/ -- China Yingxia,International, Inc. ... "the,Company"), a leading provider in the nutraceutical ... of organic nutritional food,products, supplements, and personal ... ("PRC"), today announced that it has formally ...
... BASINGSTOKE, England and PHILADELPHIA, April 25 /PRNewswire-FirstCall/,-- Shire plc (LSE: ... the three months to March,31, 2008., Q1 2008 ... - New product sales(1) $216m, 34% of product sales ... - US GAAP Operating income up 15% to $163m ...
Cached Biology Technology:Fraunhofer and Boston University Hosted Prestigious SME Tour 2China Yingxia International, Inc. Acquires Grocery Chain and Online Distribution Network 2China Yingxia International, Inc. Acquires Grocery Chain and Online Distribution Network 3Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 2Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 3Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 4Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 5Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 6Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 7Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 8Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 9Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 10Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 11Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 12Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 13Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 14Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 15Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 16Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 17Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 18Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 19Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 20Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 21Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 22Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 23Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 24Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 25Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 26Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 27Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 28Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 29Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 30Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 31Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 32Following a Good Start to the Year Shire Reaffirms Full Year 2008 Financial Guidance 33
(Date:10/17/2014)... knowledge regarding Ebola is critical and pertinent for practicing ... global outbreak and epidemic. The Journal, Disaster Medicine ... issue, Ebola Virus and Public Health, to surround the ... this critical societal moment. , On October 17, ... Clinicians . The primer was prepared by Dr. Eric ...
(Date:10/17/2014)... German . ... When treating overdoses, doctors are often limited to supportive therapy ... is a combination of drugs involved. So what can be ... grandmother,s pills? ETH professor Jean-Christophe Leroux from the Institute of ... to this question. "The task was to develop an agent ...
(Date:10/16/2014)... synthesis of recent research findings to inform their management ... states. , The Ecology and Management of Moist ... of the Relevant Biophysical Science and Implications for Future ... U.S. Forest Service,s Pacific Northwest Research Station, is a ... synthesis of the large body of scientific information on ...
Breaking Biology News(10 mins):Emergency aid for overdoses 2Emergency aid for overdoses 3New report synthesizes best available science on management of moist mixed-conifer forests 2
... Polycyclic Aromatic Compounds (PACs) on terrestrial and benthic invertebrates ... sediment contamination. Effects are assessed exposing the organisms to ... cases this results in highly predictable effects on development ... that the effects of prolonged exposure can be very ...
... researchers under the leadership of Vici-winner Merel Kindt has ... in human volunteers by administering the beta-blocker propranolol. Interestingly, ... of time. Top journal Nature Neuroscience published ... recently, it was assumed that the fear memory could ...
... well crickets adapt to rising temperatures may provide clues ... UCF scientist Wade Winterhalter landed an $860,000 grant ... study that fuses global warming models with a biological ... ground cricket, also known as the Allonemobius socius. ...
Cached Biology News:Soil and sediment contamination assessment more accurate 2An end to fear 2Crickets may predict human survivability during global warming 2
Rat monoclonal [HEK/1/85a] to CCR5 ( Abpromise for all tested applications). entrezGeneID: 1234 SwissProtID: P51681...
... designed for use with the ProQuest Two-Hybrid ... contains deletions in the endogenous GAL4 and ... systems. The strain also has leu2 and ... and prey vectors. MaV203 contains three GAL4 ...
Spastin (Sp 3G11/1)...
Anti-Cullin-1 Host: rabbit polyclonal Species Reactivity: human, mouse Applications: IHC(P), WB, IP Storage: 4C...
Biology Products: