News / Science & Technology

Mapping of Salmon Genome Could Aid Conservation Efforts

Salmon production exceeds 1 billion pounds annually, with about 70% coming from aquaculture salmon farms. (Credit: Genome BC)
Salmon production exceeds 1 billion pounds annually, with about 70% coming from aquaculture salmon farms. (Credit: Genome BC)
Rosanne Skirble
Once a luxury item, salmon is now among the most popular fish consumed in North America, Europe and Japan. 

Since 1980, production of farmed raised salmon has tripled, accounting for 70 percent of the world market.

The genetic sequence of the Atlantic salmon announced Tuesday could help improve aquaculture operations and better conserve wild salmon stocks.

Salmon is big business, and fishery managers want to keep those stocks healthy. 
 
Mapping of Salmon Genome Could Aid Conservation Efforts
Mapping of Salmon Genome Could Aid Conservation Efforts i
|| 0:00:00
...    
🔇
X

Mapping its genome will improve salmon production in a sustainable way, says Steinar Bergseth, who chaired the International Cooperaton  to Sequence the Atlantic Salmon Genome (ICSASG) that did the work.

“In the sequence, in the genetic material are the codes for determining its health, its look, its utilization of food and so on and so forth," said Bergseth, "so to be able to understand this relation between the genetics and the biology then we need to sequence the salmon."
The salmon genome will help other species related to salmon such as rainbow trout and Pacific salmon. (Credit: Genome BC)The salmon genome will help other species related to salmon such as rainbow trout and Pacific salmon. (Credit: Genome BC)
x
The salmon genome will help other species related to salmon such as rainbow trout and Pacific salmon. (Credit: Genome BC)
The salmon genome will help other species related to salmon such as rainbow trout and Pacific salmon. (Credit: Genome BC)


While the size of its genome is about the same as a human’s, the salmon’s genetic code is more complicated.  Instead of two copies of each gene, the salmon has four.
 
“And of course that is quite obvious that makes some challenges, not only some, but rather big challenges to understand what you are sequencing relating to these four copies,” Bergseth said.  

And the very long repeated sequences made the work even more arduous. 

The scientists applied tools used for the human genome project and developed new analytical instruments.

Bergseth says now that the genome is sequenced, the work to understand salmon biology is just beginning.

“We could understand, for instance, the sex determination in the salmon and produce sterile salmon, which would be very beneficial for this interaction between the escaped farmed salmon and the wild salmon," he said. "And of course then this problem with cross breeding between the farmed and the wild will disappear.”
    
The sequence is also certain to trigger work on other species closely related to Atlantic salmon like the Pacific salmon, trout and char.  

The five-year $10 million project is a collaboration among government and industry partners in Canada, Norway and Chile.

You May Like

On Everest, Helicopters Rescue Stranded Climbers

Choppers transport some of more than 100 mountaineers trapped after deadly quake, avalanches More

Video Ten Years After Riots, France Searches for Answers to Neglected Suburbs

In 2005, a Paris suburb exploded into violence after two teenagers were electrocuted as they hid from police; since then, somethings have changed, others not More

US, Japan Announce Historic Revision of Defense Cooperation Guidelines

Nations say new guidelines will be 'cornerstone for peace and security' in Asia-Pacific region while also serving as 'platform for a more stable international security environment' More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
‘Angel of the Migrants’ Helps Desperate Syrians Arriving in Europei
X
Henry Ridgwell
April 26, 2015 10:36 PM
Waves of migrants are continuing to arrive on the shores of southern Italy from North Africa. After their dangerous journey across the Mediterranean, they face an unknown future in Europe. In the Sicilian city of Catania there is an activist dedicated to helping the refugees on their journey.
Video

Video ‘Angel of the Migrants’ Helps Desperate Syrians Arriving in Europe

Waves of migrants are continuing to arrive on the shores of southern Italy from North Africa. After their dangerous journey across the Mediterranean, they face an unknown future in Europe. In the Sicilian city of Catania there is an activist dedicated to helping the refugees on their journey.
Video

Video Ten Years After Riots, France Searches for Answers to Neglected Suburbs

January’s terrorist attacks and fears of more to come are casting a spotlight on France’s neglected suburbs. Home to many immigrants, and sometimes hubs of crime, they were rocked by rioting a decade ago. Lisa Bryant visited the Paris suburb of Clichy-sous-Bois, where the 2005 violence first broke out, and has this report about what has changed and what has not.
Video

Video Gay Marriage Goes Before US Supreme Court

This week, the U.S. Supreme Court will hear arguments on whether gay people have a constitutional right to marriage. VOA’s Michael Bowman reports, the case could lead to the nationwide legalization of same-sex marriage, or a continuation of the status quo in which individual states decide whether to recognize gay unions.
Video

Video Study: Insecticide Damaging Wild Bee Populations

A popular but controversial type of insecticide is damaging important wild bee populations, according to a new study. VOA’s Steve Baragona has more.
Video

Video Data Servers Could Heat Private Homes

As every computer owner knows, when their machines run a complex program they get pretty hot. In fact, cooling the processors can be expensive, especially when you're dealing with huge banks of computer servers. But what if that energy could heat private homes? VOA’s George Putic reports that a Dutch energy firm aims to do just that.
Video

Video Cinema That Crosses Borders Showcased at Tribeca Film Festival

Among the nearly 100 feature length films being shown at this year’s Tribeca Film Festival in New York City are more than 20 documentaries and features with international appeal, from a film about a Congolese businessman in China, to documentaries shot in Pakistan and diaspora communities in the U.S., to a poetic look at disaffected South African youth. VOA’s Carolyn Weaver has more.
Video

Video UN Confronts Threat of Young Radicals

The radicalization and recruitment of young people into Islamist extremist groups has become a growing challenge for governments worldwide. On Thursday, the U.N. Security Council heard from experts on the issue, which has become a potent threat to international peace and security. VOA’s Margaret Besheer reports.
Video

Video Growing Numbers of Turks Discover Armenian Ancestry

In a climate of improved tolerance, growing numbers of people in Turkey are discovering their grandmothers were Armenian. Hundreds of thousands of Armenians escaped the mass deportations and slaughter of the early 1900's by forced conversion to Islam. Or, Armenian children were taken in by Turkish families and assimilated. Now their stories are increasingly being heard. Dorian Jones reports from Istanbul that the revelations are viewed as an important step.
Video

Video Migrants Trek Through Western Balkans to Reach EU

Migrants from Africa and other places are finding different routes into the European Union in search of a better life. The Associated Press followed one clandestine group to document their trek through the western Balkans to Hungary. Zlatica Hoke reports that the migrants started using that route about four years ago. Since then, it has become the second-most popular path into Western Europe, after the option of sailing from North Africa to Italy.
Video

Video US Businesses See Cuba as New Frontier

The Obama administration's opening toward Cuba is giving U.S. companies hope they'll be able to do business in Cuba despite the continuation of the U.S. economic embargo against the communist nation. Some American companies have been able to export some products to Cuba, but the recent lifting of Cuba's terrorism designation could relax other restrictions. As VOA's Daniela Schrier reports, corporate heavy hitters are lining up to head across the Florida Straits - though experts urge caution.
Video

Video Kenya Launches Police Recruitment Drive After Terror Attacks

Kenya launched a major police recruitment drive this week as part of a large-scale effort to boost security following a recent spate of terror attacks. VOA’s Gabe Joselow reports that allegations of corruption in the process are raising old concerns about the integrity of Kenya’s security forces.
Video

Video Japan, China in Race for Asia High-Speed Rail Projects

A lucrative competition is underway in Asia for billions of dollars in high-speed rail projects. Cambodia, India, Indonesia, Malaysia Thailand and Vietnam are among the countries planning to move onto the fast track. They are negotiating with Japan and the upstart Chinese who are locked in a duel to revolutionize transportation across Asia. VOA Correspondent Steve Herman in Bangkok has details.
Video

Video Scientists: Mosquitoes Attracted By Our Genes

Some people always seem to get bitten by mosquitoes more than others. Now, scientists have proved that is really the case - and they say it’s all because of genes. It’s hoped the research might lead to new preventative treatments for diseases like malaria, as Henry Ridgwell reports from London.
Video

Video Bible Museum Coming to Washington DC

Washington is the center of American political power and also home to some of the nation’s most visited museums. A new one that will showcase the Bible has skeptics questioning the motives of its conservative Christian funders. VOA religion correspondent Jerome Socolovsky reports.
Video

Video Afghan First Lady Pledges No Roll Back on Women's Rights

Afghan First Lady Rula Ghani, named one of Time's 100 Most Influential, says women should take part in talks with Taliban. VOA's Rokhsar Azamee has more from Kabul.

VOA Blogs