Navigation Links
First study into GM Atlantic salmon mating reveals danger of escape to wild gene pool
Date:7/13/2011

If genetically modified Atlantic salmon were to escape from captivity they could succeed in breeding and passing their genes into the wild, Canadian researchers have found. Their research, published in Evolutionary Applications, explores the potential reproductive implications of GM salmon as they are considered for commercial farming.

"The use of growth-enhancing transgenic technologies has long been of interest to the aquaculture industry and now genetically modified Atlantic salmon is one of the first species to be considered for commercial farming. Yet, little is known about the potential impact on wild salmon populations if the GM species were to escape captivity," said lead author Darek Moreau from the Memorial University of Newfoundland, Canada.

One of the key concerns about a transgene escape is the "Trojan gene effect", caused when a GM fish outcompetes or reproduces equally against wild rivals, however if the resulting offspring are genetically inferior this could lead a species towards eventual extinction. Until now there is no empirical research to demonstrate the ability of transgenic Atlantic salmon to breed naturally and infiltrate the wild gene pool.

In the wild, reproducing males present two main forms of rivals which any escaping transgenic male would have to compete with; large males which have migrated and returned from the sea and smaller male parr which have matured in freshwater. The large males are aggressive and develop attributes to fight off their rivals, while the smaller male parr use cryptic colouring and 'sneak fertilisation' to compete.

To measure the ability of transgenic males to complete with wild males during the reproductive season the team monitored breeding behaviour in a naturalised laboratory setting and used genetic analysis to determine the success of competing individuals at producing offspring.

Large, migratory wild males outperformed their captivity-reared tran
'/>"/>

Contact: Ben Norman
Lifesciencenews@wiley.com
44-124-377-0375
Wiley-Blackwell
Source:Eurekalert

Page: 1 2

Related biology news :

1. Scientists discover first gonorrhea strain resistant to all available antibiotics
2. From deadly E. coli to endangered polar bears: GigaScience provides first citable data
3. Broadlawns Installs First-in-Iowa Biometric Patient Identity Security System
4. For the first time, the European IVF Monitoring Group reports on cycles using frozen eggs
5. First whole-genome lung cancer study by TGen and Virginia G. Piper Cancer Center set for conference
6. The loudest animal is recorded for the first time
7. New study documents first cookiecutter shark attack on a live human
8. First joint ESC/EAS guidelines for the management of dyslipidaemias
9. Prodigal plankton species makes first known migration from Pacific to Atlantic via Pole
10. Elsevier and ADSA announce winners of first annual Journal of Dairy Science Most Cited Awards
11. First genetic mutation linked to heart failure in pregnant women
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... open ocean as a microbial megacity, teeming with life ... water, hundreds of types of bacteria can be found. ... ocean microbes have their own daily cyclesnot unlike the ... up, commute, work, and eat at the same times., ... photoautotrophsbacteria that need solar energy to help them photosynthesize ...
(Date:7/10/2014)... if you are a big, bad sea scorpion. , ... waters for any prey in sight. The next, thanks ... you,re reduced to trolling for weaker, soft-bodied animals you ... of the giant pterygotid eurypterid, the largest arthropod that ... in the journal Biology Letters , dramatically re-interprets ...
(Date:7/10/2014)... JUPITER, FL, July 10, 2014 Amidst the astounding ... of synaptic connections in the brain, how do nerve ... connections to build? How do they coordinate these events ... scientists from the Florida campus of The Scripps Research ... processes, showing that a particular protein plays a far ...
Breaking Biology News(10 mins):New research finds ocean's most abundant organisms have clear daily cycles 2New research finds ocean's most abundant organisms have clear daily cycles 3Extinct sea scorpion gets a Yale eye exam, with surprising results 2Scripps Florida scientists shed new light on nerve cell growth 2
... FAHA, the Aram V. Chobanian Professor of Cardiovascular ... at Boston University School of Medicine (BUSM), has ... Distinguished Scientist. The AHA designated only five Distinguished ... Distinguished Scientist designation in 2003 to recognize science ...
... at Boston University School of Medicine (BUSM) have brought attention ... and their infants from consuming brown seaweed soup. Seaweed is ... there is no scientific data on the iodine content in ... Editor for the journal Thyroid and published online, ...
... What looks like a spongy ball wrapped in strands ... be key to unlocking better methods for catalysis, artificial ... University chemists who have created a platform to analyze ... photoluminescent materials. The microscopic particles assembled in ...
Cached Biology News:BUSM professor selected as American Heart Association Distinguished Scientist 2BUSM researchers urge awareness of dietary iodine intake in postpartum Korean-American women 2Supramolecules get time to shine 2Supramolecules get time to shine 3
(Date:7/10/2014)... Utah , July 10, 2014 /PRNewswire-iReach/ ... annotation and interpretation, today announced an agreement ... (NGS) analytics for Lineagen,s NextStep Dx ... of neurodevelopmental and neurological disorders, currently offers ... microarray (CMA) testing service used by healthcare ...
(Date:7/10/2014)... THOUSAND OAKS, Calif., July 10, 2014   Ceres, ... biotechnology and seed company, announced today financial results for ... an update on its business. Ceres reported ... progress in product performance this growing season in Brazil, ... that affected the company,s sorghum evaluation areas for part ...
(Date:7/10/2014)... the fight against terrorism with the creation of a ... the use of light and special glass fibres. , ... Chemical , the researchers describe a novel optical fibre ... as 6.3 ppm (parts per million). It requires an ... explosives detection has involved looking for metals that encase ...
(Date:7/10/2014)... in the journal PNAS (Proceedings of the National ... day and sleep deprivation have a significant effect on ... at the best time of day to test for ... administering medicines effectively. , Researchers from the University of ... the links between sleep deprivation, body clock disruption and ...
Breaking Biology Technology:Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Detecting trace amounts of explosives with light 2Time of day crucial to accurately test for diseases, new research finds 2
... Immucor, Inc. (Nasdaq:,BLUD), a global leader in providing automated instrument-reagent ... the fiscal year ending May 31, 2009., For fiscal ... $292 million to $300 million., -- ... to 71%., -- Net income is expected to be in ...
... DANBURY, Conn., June 4 Biodel Inc. (Nasdaq:,BIOD) today ... Corporate Development and Treasurer of Biodel, will present a,corporate ... on,Friday, June 6, 2008 at 1:40 p.m. Pacific Daylight ... San Francisco., Interested parties may access a link ...
... held in ... Georgia, ATLANTA, June 4 ... 17 -- 20, in,San Diego, Calif. Governor Perdue will deliver remarks on June ... of the fastest-growing industries in the nation, the,biosciences sector is a strategic priority ...
Cached Biology Technology:Immucor Announces Fiscal Year 2009 Revenue and Earnings Guidance 2Immucor Announces Fiscal Year 2009 Revenue and Earnings Guidance 3Georgia Showcases its Bioscience Leadership at 2008 Bio International Convention 2Georgia Showcases its Bioscience Leadership at 2008 Bio International Convention 3
... Salmonella genomes has allowed the development of ... pairs. The S. enterica Typhimurium (strain LT2) ... bp; 4,440 ORFs) and a plasmid, pSLT ... Sigma-Genosys have been designed to amplify all ...
... The Bio-Stack Twister II Microplate ... top automation solution for integrating BioTeks ... together with expandable microplate capacity, ultimate ... Whether you are adding capacity to ...
XPLAC (S-17)...
Request Info...
Biology Products: