Navigation Links
New study reveals first ever method to genetically identify all 8 tuna species
Date:10/29/2009

A new paper published October 27 in PLoS ONE, the online, open-access scientific journal, unveils for the first time a method to accurately distinguish between all eight tuna species from any kind of processed tissue using genetic sequencing.

Tunas are among the most economically valuable and yet the most endangered commercially exploited fish in the world.

Identification of these species in traded forms, which are typically dressed, gilled and gutted, or loin and belly meat, and either fresh or frozen, is a highly complex process which may hamper conservation efforts on trade comtrols.

The paper, 'A Validated Methodology for Genetic Identification of Tuna Species (Genus Thunnus)', co-authored by Dr Jordi Vias, a fish genetics specialist at Girona University in Spain and Dr Sergi Tudela, Head of Fisheries of WWF Mediterranean, proposes for the first time ever a genetic method for the precise identification of all eight recognized species of tuna.

The analysis of the DNA sequence variability of two unlinked genetic markers, one a hypervariable segment of the mitochondrial genome and the other a nuclear gene, enables full discrimination between all eight tuna species.

"This methodology will allow the identification of tuna species of any kind of tissue or type or presentation including sushi and sashimi," said Dr Jordi Vias of Girona University. "The differentiation between different tunas, even those with highly similar genes, is now possible."

"Our findings are particularly relevant for the highly overfished, overtraded and hence endangered Atlantic bluefin tuna, for which there is a growing campaign to impose a temporary ban on international trade," added co-author Dr Sergi Tudela of WWF. "There will now be no trace of doubt when seeking to identify chilled or frozen tuna flesh at port or point of sale."


'/>"/>

Contact: Rebecca Walton
rwalton@plos.org
44-122-346-3333
Public Library of Science
Source:Eurekalert

Page: 1

Related biology news :

1. EPAs new green parking lot allows scientists to study permeable surfaces that may help the environment
2. Bad driving may have genetic basis, UCI study finds
3. Stanford researchers awarded $6.27 million to study energy efficiency and human behavior
4. Study shows how carbon nanotubes can affect lining of the lungs
5. Model microbial community for studying expanding dead zones characterized
6. Geologists studying groundwater arsenic levels in India empower Bengali women, children
7. El Paso County serves as a model for obesity prevention, according to UT School of Public Health study
8. Texas A&M oceanographer receives $3.7 million grant to study Gulf dead zone
9. K-State receives more than $780,000 to fund graduate students studying ecology, evolution, genomics
10. University of the Basque Country study on proteins related to Alzheimers
11. ICU patients on ventilators flex and stretch in study at Case Western Reserve University
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/22/2016)... , June 22, 2016 On Monday, the ... to industry to share solutions for the Biometric Exit ... Customs and Border Protection (CBP), explains that CBP intends ... departing the United States , in ... to defeat imposters. Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
(Date:6/15/2016)... June 15, 2016 Transparency ... titled "Gesture Recognition Market by Application Market - Global Industry Analysis ... 2024". According to the report, the  global gesture recognition ... 2015 and is estimated to grow at a ... by 2024.  Increasing application of gesture ...
(Date:6/3/2016)... Das DOTM (Department ... hat ein 44 Millionen $-Projekt ... einschließlich Personalisierung, Registrierung und IT-Infrastruktur, an Decatur ... Implementierung von Identitätsmanagementlösungen. Zahlreiche renommierte internationale Anbieter ... aber Decatur wurde als konformste und innovativste ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... June 23, 2016 Houston Methodist Willowbrook ... Cy-Fair Sports Association to serve as their official ... Houston Methodist Willowbrook will provide sponsorship support, athletic ... with association coaches, volunteers, athletes and families. ... Cy-Fair Sports Association and to bring Houston Methodist ...
(Date:6/23/2016)...  The Biodesign Challenge (BDC), a university competition that ... living systems and biotechnology, announced its winning teams at ... New York City . The teams, ... at MoMA,s Celeste Bartos Theater during the daylong summit. ... curator of architecture and design, and Suzanne Lee ...
(Date:6/23/2016)... OTTAWA, ON (PRWEB) , ... June 23, 2016 , ... ... former DNA Technical Leader at the Arkansas State Crime Laboratory, has joined STACS DNA ... joining the STACS DNA team,” said Jocelyn Tremblay, President and COO of STACS DNA. ...
(Date:6/23/2016)... Calif. , June 23, 2016  Blueprint Bio, ... biological discoveries to the medical community, has closed its ... Matthew Nunez . "We have received ... with the capital we need to meet our current ... essentially provide us the runway to complete validation on ...
Breaking Biology Technology: