Navigation Links
Adapting to darkness: How behavioral and genetic changes helped cavefish survive extreme environment
Date:9/14/2010

University of Maryland biologists have identified how changes in both behavior and genetics led to the evolution of the Mexican blind cavefish (Astyanax mexicanus) from its sighted, surface-dwelling ancestor. In research published in the August 12, 2010 online edition of the journal Current Biology, Professor William Jeffery, together with postdoctoral associates Masato Yoshizawa, and pela Gorički, and Assistant Professor Daphne Soares in the Department of Biology, provide new information that shows how behavioral and genetic traits coevolved to compensate for the loss of vision in cavefish and to help them find food in darkness. This is the first time that a clear link has been identified between behavior, genetics, and evolution in Mexican blind cavefish, which are considered an excellent model for studying evolution.

Why Study Blind Cave Fish

Worldwide, about 80 different species of cave-dwelling fish have evolved from surface-dwelling fish, but in most cases the surface-dwelling ancestor has disappeared. "The Mexican blind cavefish is one of the only cases where a similar ancestor still exists," explains Professor Jeffery. "Except for the loss of eyes and pigment seen in the cave-dwelling form, the surface and cave-dwellers are hard to tell apart. You can study evolution very nicely if you have both the ancestral and derived forms of evolving animals."

Jeffery is a leading expert on the developmental and evolutionary genetics of the blind cavefish. His previous research provided evidence that the loss of eyes in blind cavefish is the result of natural selection, and has inspired other researchers to take up Astyanax as a model system for studying eye loss and evolution in general. Studying the evolution of cave fish may help provide clues about human forms of blindness such as macular degeneration and cataracts, and the University of Maryland team is also exploring how studies of cave fish metabolism might be used to be
'/>"/>

Contact: Kelly Blake
kellyb@umd.edu
301-405-8203
University of Maryland
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Bird flu leaves the nest -- adapting to a new host
2. Most US organizations not adapting to climate change
3. Computer-based video analysis boosts data gathering in behavioral studies
4. Light, circadian rhythms affect vast range of physiological, behavioral functions
5. Popular autism diet does not demonstrate behavioral improvement
6. Animal behavioral studies can mimic human behavior
7. Study confirms association between tobacco smoke and behavioral problems in children
8. Manatee subspecies genetically confirmed, but diversity challenge looms
9. OU study on genetics in fruit flies leads to new method for understanding brain function
10. Use of informatics, EMRs enable genetic study of vascular disease
11. American Society of Human Genetics to host 60th Annual Meeting in Washington, D.C.
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Adapting to darkness: How behavioral and genetic changes helped cavefish survive extreme environment
(Date:5/25/2015)... SYDNEY , May 25, 2015  Australia,s market ... inception stage, although 2014 saw the advent of several ... on 24 April 2015 is expected to ignite interest ... devices in Australia . This in ... the industry and drive new partnerships amongst vendors and ...
(Date:5/22/2015)... , May 22, 2015 According ... by Solution (2D, 3D, Thermal, Emotion, Forensic), by Software (Middleware, ... (Government and Utilities, Consumer and Home) - Global Forecast ... grow from $2.77 Billion in 2015 to $6.19 Billion ... Browse 79 market data Tables and   43 ...
(Date:5/21/2015)... The Sync Project™ , a global ... today announced a collaborative partnership with Berklee,s Institute ... on collaboration on original research, joint course development and ... collaboration, The Sync Project and BerkleeICE are exploring the ... the 2015-2016 academic year.  The course ...
Breaking Biology News(10 mins):Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 3Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 4Facial Recognition Market Worth $6.19 Billion by 2020 2Facial Recognition Market Worth $6.19 Billion by 2020 3The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 2The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 3
... A research group led by a New York University School ... fish in the Hudson River to live in waters heavily ... 18, 2011, online issue of Science , they report ... in response to the toxic chemicals, which were first introduced ...
... research has found that a statin drug that is often ... people with diabetes. In a study using diabetic ... of Georgia College of Pharmacy, and her colleagues found that ... important to maintaining vision. The results of the study are ...
... (IOF) in its 2009 publication, ,The Asian Audit, it ... all osteoporotic fractures will occur in Asia. To meet ... need for advanced clinical training of health professionals as ... osteoporosis and related bone disorders within the Asia-Pacific region. ...
Cached Biology News:A genetic mutation allows Hudson River fish to adapt to PCBs 2Study suggests statins may prevent diabetic-related blindness 2
(Date:5/27/2015)... , May 26, 2015 Research ... of the "Global Breast Cancer Monoclonal Antibodies ... Globally, Roche seems to dominate the ... inventory. Its block buster molecule, Herceptin has been ... It was found that breast cancer cells become ...
(Date:5/27/2015)... /CNW/ - CQDM, Brain Canada and the Ontario ... (6) multi-disciplinary and multi-provincial research teams across Canada to ... Brain strategic initiative. To this amount, $1.5M is added ... This exciting announcement was made today at the annual ... presence of Inez Jabalpurwala, President and CEO of ...
(Date:5/27/2015)... Empowering biomedical researchers with richer, ... Inc. today announced its MR Compatible Small Animal ... Scanner uses silicon photomultiplier detector technology, so it ... from manufacturers like Bruker and Agilent,” said James ... “This enables simultaneous PET and MRI data acquisition ...
(Date:5/27/2015)... OAKLAND, Calif. , May 27, 2015  Two ... tinkerers, biotech professionals, hackers and citizen scientists, ... a $30,000 crowdfunding campaign promoting its mission to democratize ... city,s Temescal District. ... Based out ...
Breaking Biology Technology:Global Breast Cancer Monoclonal Antibodies Market Outlook 2020 2Global Breast Cancer Monoclonal Antibodies Market Outlook 2020 3Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 2Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 3Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 4Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 5Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 6Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 7Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 8Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 9Focus on Brain: $10M for breakthrough technologies to address unmet needs in neurosciences 10Cubresa Launches Simultaneous PET/MRI Technology 2East Bay's Counter Culture Labs Seeks to Open Doors of Science to Public 2East Bay's Counter Culture Labs Seeks to Open Doors of Science to Public 3
... , , , ... SQNM ) and GeneWorks Pty. Ltd. today announced ... SEQUENOM in expanding its sales & marketing presence in Australia. ... across Australia. GeneWorks has significant experience and a strong reputation ...
... NEW YORK, Sept. 9 Future Pharmaceuticals features ... Manager of Informatics at Thermo Fisher Scientific, and Thor-Gunnar Steinsli, ... Biobank, about data integration: the benefits of data, instrument and ... , , "One of the biggest ...
... CHARLOTTESVILLE, Virginia, September 9 Biovista Inc.,today announced ... significant positive results in the MOG-induced Experimental Allergic,Encephalomyelitis (EAE) ... that,Biovista repositioned in MS and is aimed at neuroprotection. ... and no toxic effects in this well,established model of ...
Cached Biology Technology:SEQUENOM Announces Partnership With GeneWorks for Sales & Marketing of MassARRAY Systems and Applications in Australia 2SEQUENOM Announces Partnership With GeneWorks for Sales & Marketing of MassARRAY Systems and Applications in Australia 3SEQUENOM Announces Partnership With GeneWorks for Sales & Marketing of MassARRAY Systems and Applications in Australia 4Don't Wait to Innovate: Future Pharmaceuticals Magazine Releases Its Issue on Innovation in IT, Cell-Based Therapy and Supply Chains 2Biovista Inc. Announces Positive Efficacy Results in a Pre-clinical Trial of its BVA-201 Repositioned Drug for Multiple Sclerosis 2
ssDNA from PCR DNA in less than 1 hour. No gels, columns, or slurries. Sequence from high quality ssDNA: clearer reads, longer runs....
... 100 reactions. Prepare circular DNA templates ... microgram quantities of template DNA from ... DNA directly for cycle sequencing without ... liquid cultures, colonies, plaques, or purified ...
... Amplification Kit, 500 reactions. Prepare circular ... 4-6 h.Generate microgram quantities of template ... material.Use amplified DNA directly for cycle ... or M13 liquid cultures, colonies, plaques, ...
Attachments: Clip bar for tubes 10 to 19 mm in diameter Overall Dimension Height IC: 6 (15.2) Overall Dimension Length IC: 18.5 (46.9) Overall Dimension Width IC: 4 (10.2)...
Biology Products: