Navigation Links
UBC researchers find first-ever 'wanderlust gene' in tiny bony fish
Date:8/4/2009

A gene previously associated with physical traits is also dictating behaviour in a tiny fish widely regarded as a living model of Darwin's natural selection theory, according to a University of British Columbia study.

Measuring three to 10 centimetres, stickleback fish originated in the ocean but began populating freshwater lakes and streams following the last ice age. Over the past 15,000 years, freshwater sticklebacks have lost their bony lateral plates, or "armour," in these new environments. Scientists have identified a mutant form of a gene, or allele, that prohibits growth of armour and is commonly found in freshwater sticklebacks but exists in less than one per cent of their marine counterparts.

Now UBC PhD candidate Rowan Barrett and colleagues from UBC's Dept. of Zoology have found that the gene may also be contributing to the fish's tendency to relocate instead of adjusting to their surroundings the first time a gene associated with this type of behaviour has been identified. Their findings are published today in the journal Biology Letters.

"Contrary to our assumption, the low-armour allele is not linked to a preference for fresh water, or low salinity," says Barrett. "Instead, we found a strong association between having the allele and the fish's inclination to move into different salinities a sort of 'wanderlust gene,' if you will instead of staying put and acclimatizing to the current salinity."

"The combination of physical and behavioural traits could explain why the low-armour allele keeps turning up during marine sticklebacks' 'invasion' of freshwater habitats," says Barrett.

"The new behavioural association we've identified may also shed light on why there's still a small but constant population of armour-less sticklebacks in the sea despite the high predation there. Sticklebacks with the mutant allele just like to go to new places."


'/>"/>

Contact: Brian Lin
brian.lin@ubc.ca
604-822-2234
University of British Columbia
Source:Eurekalert

Page: 1

Related biology news :

1. Pitt researchers find promising candidate protein for cancer prevention vaccines
2. K-State researchers say after-school programs should promote activity, healthy nutrition
3. MU researchers create drought conditions to unearth solutions
4. Antibody targeting of glioblastoma shows promise in preclinical tests, say Lombardi researchers
5. UCSF researchers identify new drug target for Kaposis sarcoma
6. Fox Chase researchers uncover one force behind the MYC oncogene in many cancers
7. 1 in 6 health workers wont report in flu pandemic -- study by Ben-Gurion U. researchers
8. Researchers team up to provide new hope for childhood hunger
9. UBC researchers help push for standard DNA barcodes for plants
10. Researchers develop brain-reading methods
11. ISU researchers find possible treatment for spinal muscular atrophy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/9/2016)... May 9, 2016 Elevay is ... to expanding freedom for high net worth professionals seeking ... today,s globally connected world, there is still no substitute ... ever duplicate sealing your deal with a firm handshake. ... by taking advantage of citizenship via investment programs like ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
(Date:4/26/2016)... India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a product ... and Onegini today announced a partnership to integrate ... solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... to provide their customers enhanced security to access ...
Breaking Biology News(10 mins):
(Date:5/23/2016)... and LONDON , May 23, 2016 ... Could See Frontage Boost Efficiency by 40% - Frontage ... - Frontage Enforce Quality, Compliance and Traceability Within the Bioanalytical ... with labs in the United States and ... to be deployed across its laboratory facilities. In addition to ...
(Date:5/23/2016)... ... 23, 2016 , ... Foresight Institute , a leading ... for the 2015 Foresight Institute Feynman Prizes. , These prestigious prizes, named ... for experiment and the other for theory in nanotechnology. Prof. Markus J. Buehler, ...
(Date:5/20/2016)... CA (PRWEB) , ... May 20, 2016 , ... The ... 10 of its most experienced veterinary clients have treated over 100 of their own ... edge technology to provide the highest level of care for their patients. , ...
(Date:5/20/2016)... NC (PRWEB) , ... May 20, 2016 , ... Korean ... suggesting that it may offer a new way to treat the disease. Surviving Mesothelioma ... it now. , Scientists from several Korean institutions based their mesothelioma study on ...
Breaking Biology Technology: