Navigation Links
A bad break for fake pearls
Date:10/19/2013

For a long time, it was thought impossible to isolate a pearl's genetic material. Now, a Swiss research team has achieved this elusive goal. Scientists Joana Meyer, from the ETH Institute of Integrative Biology group headed by Prof. Bruce McDonald, and Laurent Cartier of the Swiss Gemmological Institute (SSEF), under the direction of Michael Krzemnicki, succeeded for the first time in extracting trace amounts of DNA from a variety of cultured pearls in an almost non-destructive way. Using the genetic code, they were able to differentiate pearls from three different species of oysters vital to the jewellery trade. Their results were recently published in the scientific journal PLoS ONE.

The genetic material is likely embedded in organic matter found in the calcium carbonate matrix of the pearl, as well as in random pockets of organic matter enclosed in the pearl. The tiny amount of DNA recovered was sufficient to determine the species of pearl oyster that produced the jewel in question. The examined pearls were South Sea pearls originating from the species Pinctada maxima, Tahitian pearls from Pinctada margaritifera and pearls from Akoya oysters. This last group is one of the most important producers of both cultured and natural pearls (Pinctada radiata). These naturally formed gems can be very valuable and often come from the Arabian Gulf.

Non-destructive sampling

An important part of the project was to develop a technique for isolating pearl DNA without destroying the commercial value of the jewels. The researchers used a fine drill to expand existing holes in a barely visible way. The resulting 10 milligrams of drilled-out material was sufficient to isolate enough DNA for the purpose of species identification.

A patent application has already been filed for the method developed by the research team. In the future, it will be possible to use it to differentiate between various kinds of pe
'/>"/>

Contact: Bruce McDonald
bruce.mcdonald@agrl.ethz.ch
41-446-323-847
ETH Zurich
Source:Eurekalert

Page: 1 2

Related biology news :

1. Breaking up isnt hard to do -- the secret lives of corals on dark and stormy nights
2. Breakthroughs in Chikungunya research from A*STAR spell new hope for better treatment and protection
3. Record-breaking grant: New research project to investigate the causes of mental disorders
4. Interventional radiology: Potential breakthrough to treat mens enlarged prostate
5. Protein jailbreak helps breast cancer cells live
6. Glycemic index foods at breakfast can control blood sugar throughout the day
7. Researchers use game to change how scientists study disease outbreaks
8. WanderID Launches Breakthrough ID Product for Children, Seniors
9. Lawson recieves Grand Challenges Explorations grant for groundbreaking research
10. Make or break for cellular tissues
11. Nanotechnology breakthrough could dramatically improve medical tests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2015)... , June 26, 2015 ATL Technology, LLC, ... devices with specialties in single use solutions, headquartered in ... MedConx, Inc. (a California corporation with ... San Jose, Costa Rica ). ... Costa Rica with ATL Technology,s existing facility in ...
(Date:6/25/2015)... 25, 2015  TAKE Solutions Ltd., a global business ... United States Patent and Trademark Office (USPTO) for its ... TAKE Solutions, Clinical Accelerators to reduce the time taken ... to standardization without the accelerators), thus reducing time to ... At the heart of the patented Clinical Data ...
(Date:6/24/2015)... 24, 2015  Synaptics Inc. (NASDAQ: SYNA ... today announced that Sharp has selected its industry-leading ... for its latest flagship smartphone device, the AQUOS ... million shipments of its fingerprint ID sensor technology, ... scalability and leadership in the biometrics market through ...
Breaking Biology News(10 mins):ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2TAKE Solutions Awarded Patent By USPTO 2Synaptics Brings Natural ID Technology to Sharp's Newest Flagship Smartphone 2
... raises future hopes for human applications , Israeli scientists ... have successfully transplanted whole frozen and thawed ovaries in ... in the laboratory into early embryonic development. , Follow-up ... from which oocytes were recovered were still functioning normally ...
... College of Engineering researchers have discovered a new ... carbohydrates commonly found in plants. , Reporting in ... Steenbock Professor James Dumesic and colleagues detail a ... biomass-derived carbohydrates can be converted to sulfur-free liquid ...
... An infectious disease expert at Johns Hopkins who has ... known as Rocky Mountain spotted fever warns that the ... is a growing and dangerous sign of how humans ... boundaries. , In an article to be published in ...
Cached Biology News:Israeli scientists successfully transplant frozen-thawed ovaries in sheep 2Israeli scientists successfully transplant frozen-thawed ovaries in sheep 3Green diesel: New process makes liquid transportation fuel from plants 2Infectious disease expert warns of spread of Rocky Mountain spotted fever 2Infectious disease expert warns of spread of Rocky Mountain spotted fever 3
(Date:7/29/2015)... Asia-Pacific / Japan (Q2 2015: +14% CER ... 2015 on high-single-digit growth in China , as well as ... . Europe / Middle East ... of sales) showed gains in Germany , Turkey ... 2015: +4% CER / 49% of sales) grew 11%, excluding U.S. HPV sales, ...
(Date:7/29/2015)... 2015  AsureQuality and Ubiquitome have agreed to ... in food and primary production sectors. The collaboration ... device, the Freedom4. AsureQuality provides quality ... supermarket shelf for producers, processors and Competent Authorities ... disease control and pest management and surveillance programmes. ...
(Date:7/29/2015)... ... July 29, 2015 , ... Brady (NYSE:BRC), a ... Label Guide . To align chemical container labeling with OSHA’s updated Hazard Communication ... label components, an example of an accurate label, and pictogram uses and meanings. ...
(Date:7/29/2015)... , July 29, 2015  Pfenex Inc. (NYSE MKT: ... results will be released on Thursday, August 13, 2015, ... Time, Pfenex management will host a conference call to ... A press release outlining the financial results and business ... Please call 1-866-376-8058 (US) or 1-412-542-4131 (international) ...
Breaking Biology Technology:QIAGEN Reports Results for Second Quarter and First Half of 2015 2QIAGEN Reports Results for Second Quarter and First Half of 2015 3QIAGEN Reports Results for Second Quarter and First Half of 2015 4QIAGEN Reports Results for Second Quarter and First Half of 2015 5QIAGEN Reports Results for Second Quarter and First Half of 2015 6QIAGEN Reports Results for Second Quarter and First Half of 2015 7QIAGEN Reports Results for Second Quarter and First Half of 2015 8QIAGEN Reports Results for Second Quarter and First Half of 2015 9QIAGEN Reports Results for Second Quarter and First Half of 2015 10AsureQuality and Ubiquitome Partner on Applications for Mobile Molecular Food Safety Testing 2Brady Announces a New GHS Label Guide 2Pfenex To Report Second Quarter 2015 Results and Provide Business Update on Thursday, August 13, 2015 2
... Informed Medical Communications,(IMC), one of the nation,s premier ... Saldarini to its Board of Directors. The,announcement was ... the company,s,headquarters in New York City. Mr. ... entrepreneurial,innovation in the area of healthcare services, most ...
... November 12 The Danish biotech cluster,known as ... into a global,hotspot in the field of personalized ... pharma and big biotech. Experience Danish,competencies at the ... 12th - 13th November. With over 10 ...
... Technology. Inc.,has been awarded a five-year contract with ... Inc. and the University HealthSystem,Consortium (UHC), two national ... The agreement makes Liftaem(TM) available to more than ... using proper equipment such,as Liftaem(TM), hospitals not only ...
Cached Biology Technology:Informed Medical Communications Appoints Charles T. Saldarini to Board of Directors 2Danish Hotspot in Personalized Medicine 2Smart Medical Technology, Inc. Awarded Novation Contract for Ground-breaking Liftaem(TM) System that Aids Lifting and Transferring Patients 2
Mouse monoclonal [5H9] to RAD52 ( Abpromise for all tested applications). entrezGeneID: 5893 SwissProtID: P43351...
... S100 belongs to the family of calcium ... S100A is composed of an alpha and ... beta chains. S100 protein is also expressed ... Langerhans cells in skin and interdigitating reticulum cells ...
Nuclear/Cytosol Fractionation Kit Research Focus: other Storage Temperature: 4C Shipping Temperature: 4C...
Polyclonal Antibody to AHI1 / Jouberin...
Biology Products: