Navigation Links
High-Throughput GoMiner

According to folklore, Polynesians originated from a mythical homeland called Hawaiki. Their origins and the existence of such a place, however, have been the subject of much speculation. In a new study in the premier open access journal PLoS Biology, Jean Trejaut and colleagues now provide the first direct evidence for the common ancestry of Polynesians and indigenous Taiwanese.

Genetic techniques involving mitochondrial DNA (mtDNA) have been used to try and determine whether there is a link between Polynesians and other Southeast Asian populations by estimating how much mtDNA different populations have in common. Early results were conflicting or inconclusive; however, the research by Trejaut et al. has finally nailed this down. Trejaut et al. analyzed mtDNA from people in China, Southeast Asia, Polynesia, and Taiwan. The authors focused specifically on the aboriginal populations of Taiwan, suggested to be ancestors of today's Polynesians, and looked for unique genetic markers that occurred in the aboriginal people. They then compared these markers to those found in mainland Chinese, Taiwanese, and other Southeast Asian peoples.

Trejaut et al. found that the indigenous Taiwanese, Melanesian, and Polynesian populations share three specific mutations in their mtDNA that do not occur in mainland east Asian populations. Furthermore, they showed that there are enough different mtDNA mutations between the mainland Chinese population and the aboriginal Taiwanese to support archeological findings suggesting a long period of habitation. These results indicate that Taiwanese aboriginal populations have been genetically isolated from mainland Chinese for 10,000 to 20,000 years, and that Polynesian migration probably originated from people identical to the aboriginal Taiwanese. Further research will be necessary to precisely determine the origins of the aboriginal Taiwanese; however, these results are a step towards clarifying the origins of Polynesians.

< p>###

Citation: Trejaut JA, Kivisild T, Loo JH, Lee CL, He CL, et al. (2005) Traces of archaic mitochondrial lineages persist in Austronesian-speaking Formosan populations. PLoS Biol 3(8): e247.


'"/>

Source:


Related biology news :

1. NIAID Initiates Trial of Experimental Avian Flu Vaccine
2. Experimental vaccine protects nonhuman primates when given after exposure to Marburg virus
3. Experimental TB drug effective against resistant and latent mycobacterium tuberculosis
4. Experimental drug reverses key cognitive deficits, pathology in Alzheimers
5. Experimental RNA-based drug kills prostate cancer cells effectively and safely
6. Experimental vaccine protects lab animals against several strains of H5N1
7. Experimental vaccine protects mice against deadly 1918 flu virus
8. Experimental cancer drugs counter muscle deterioration seen in muscular dystrophy
9. Experimental vaccine given during pregnancy reduces stillbirths from common virus
10. Research advances quest for HIV-1 vaccine
11. A much-needed shot in the arm for HIV vaccine development
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/9/2017)... , March 9, 2017 4Dx has ... World Lung Imaging Workshop at the University of Pennsylvania. ... invited to deliver the latest data to world leaders ... event brings together leaders at the forefront of the ... lung imaging. "The quality of the ...
(Date:3/7/2017)... 2017   HireVue , the leading provider of ... the best talent, faster, today announced the additions of ... and Diana Kucer as Chief Marketing Officer ... team poised to drive continued growth in the company,s ... of record bookings in 2017. "Companies worldwide ...
(Date:3/2/2017)... LONDON , March 2, 2017 Summary ... require to better understand Merck KGaA and its partnering ... report: https://www.reportbuyer.com/product/3605601/ Description The Partnering Deals ... into the partnering activity of one of the world,s ... reports are prepared upon purchase to ensure inclusion of ...
Breaking Biology News(10 mins):
(Date:3/22/2017)... 22, 2017  RXi Pharmaceuticals Corporation (NASDAQ: RXII), ... address significant unmet medical needs, today announced ... will present at the 5th Annual Cancer BioPartnering ... platform to present to and meet with thought ... biotech companies as well as institutional investors. This ...
(Date:3/20/2017)... ... ... and Whitehouse Laboratories, divisions of Albany Molecular Research, Inc, are looking forward to ... (PDA), the New York Interphex Show will open on March 21 and run through ... the educational and networking opportunities are extremely valuable. INTERPHEX is viewed as the key ...
(Date:3/20/2017)... ... March 20, 2017 , ... ... biotech companies, recently announced it will debut a brand new pressure vessel, the ... intelliVessel is controlled by a touch screen panel and features other revolutionary operations ...
(Date:3/20/2017)... ... March 20, 2017 , ... Existing methods using LC-MS/MS ... order to reduce the impact on instrumentation. ICP-MS is a robust and specific ... , This presentation will discuss the pros and cons of using LC-ICP-MS ...
Breaking Biology Technology: