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:11/21/2014)... VIEW, Calif. , Nov. 20, 2014 ... higher driver efficiency are piloting the North American and ... number of accidents growing, gesture recognition systems that are ... make a mark in the industry. ... the Automotive Gesture Recognition Market in Europe ...
(Date:11/18/2014)... , Nov. 17, 2014 The Parenteral Drug Association ... regulatory agencies will speak and at least seven more will ... at the Omni Shoreham Hotel in Washington D.C. ... again to have significant support from the regulatory agencies in ... Europe in our effort to help advance the ...
(Date:11/10/2014)... U.S. store shelves in early 2010, and people have ... packets can be tossed into a washing machine without ... The convenience, though, has come with risks for young ... Children,s Hospital found that from 2012 through 2013, U.S. ... than 6 years of age swallowing, inhaling, or otherwise ...
Breaking Biology News(10 mins):Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Study finds laundry detergent pods, serious poisoning risk for children 2
... Society for Microbiology (ASM) Abbott-ASM Lifetime Achievement Award ... Beckman Center for Molecular and Genetic Medicine, Stanford ... life of a cell. Sponsored by Abbott Laboratories, ... contributions to the microbiological sciences. Shapiro,s three ...
... The 2010 American Society for Microbiology (ASM) Abbott ... presented to Gene M. Shearer, Ph.D., Chief, Cell ... Institute, National Institutes of Health (NIH), Bethesda, MD, ... Abbott Laboratories, Diagnostics Division, this award recognizes a ...
... French . Montreal, March 2, 2010 ... contemporary populations? Did our ancestors, Homo sapiens , lean ... Damian Labuda, an investigator at the Sainte-Justine University Hospital Research ... the Universit de Montral, headed a team that analyzed genomic ...
Cached Biology News:American Society for Microbiology honors Gene M. Shearer 2Modern man found to be generally monogamous, moderately polygamous 2
(Date:11/22/2014)... LAVAL, Quebec , November 21, 2014 ... Martensen wechselt als Chief Commercial Officer zu KLOX ... zum SVP der Unternehmensentwicklung und Chief Financial Officer bestellt ... in Europa mit der Vermarktung seines jüngst zugelassenen Behandlungssystems ... Technologies Inc. ("KLOX" bzw. das "Unternehmen") ist sehr erfreut, ...
(Date:11/21/2014)... CA (PRWEB) November 20, 2014 Offering ... their Sartorius Entris Balance promotion . The Sartorius ... seeking a durable, high accuracy, and easy-to-maintain balance entry ... in Germany. It was designed to help customer’s bridge ... and a balance that is very durable. Sartorius is ...
(Date:11/21/2014)... New York, NY (PRWEB) November 20, 2014 ... ) is now available as an open access journal ... cells with infrared fluorescent proteins to preserve photoresponsiveness in ... Two-color fluorescent in situ hybridization using chromogenic ... microfluidics chips for DNA, RNA, and protein electrophoresis , ...
(Date:11/21/2014)... November 21, 2014 2014 Deep ... professional and in-depth research report on the transformer ... definition, classification, application, and industry chain structure as ... international market analysis, including China’s domestic market as ... & economic situation analysis. The report also covers ...
Breaking Biology Technology:KLOX Technologies meldet Neubesetzung von Führungspositionen 2KLOX Technologies meldet Neubesetzung von Führungspositionen 3KLOX Technologies meldet Neubesetzung von Führungspositionen 4KLOX Technologies meldet Neubesetzung von Führungspositionen 5Pipette.com Announces an Extension on the Sartorius Entris Balance Promotion to the End of 2014 2BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 2BioTechniques: The International Journal of Life Science Methods Announces the Publication of the November 2014 Issue—Available in Print and Online 3International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 2International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 3
... Coinstar, Inc. (Nasdaq: CSTR ) today ... healthcare technology company that develops and deploys health ... product and the next-generation SoloHealth Station™.  Investment details ... leader in automated retail, Coinstar is continually looking ...
... ICAP Ocean Tomo will auction a ... March 31st at the ICAP Ocean Tomo Spring 2011 ... this patent portfolio provides improvements to existing nebulizer devices. ... technological advancements have triggered the use of nebulizers for ...
... Reportlinker.com announces that a new market research report ... Global Nanobiotechnology Industry http://www.reportlinker.com/p0181059/Global-Nanobiotechnology-Industry.html ... markets for Nanobiotechnology in US$ Million by the ... Nanocomposites, Nanostructured Materials & Membranes, Nanotubes and Fullerenes, ...
Cached Biology Technology:Coinstar to Invest in SoloHealth 2Coinstar to Invest in SoloHealth 3ICAP Ocean Tomo Announces the Auction of an Improved Compact, Portable Nebulizer Developed and Patented by Tidal Air 2ICAP Ocean Tomo Announces the Auction of an Improved Compact, Portable Nebulizer Developed and Patented by Tidal Air 3ICAP Ocean Tomo Announces the Auction of an Improved Compact, Portable Nebulizer Developed and Patented by Tidal Air 4Reportlinker Adds Global Nanobiotechnology Industry 2Reportlinker Adds Global Nanobiotechnology Industry 3Reportlinker Adds Global Nanobiotechnology Industry 4Reportlinker Adds Global Nanobiotechnology Industry 5Reportlinker Adds Global Nanobiotechnology Industry 6Reportlinker Adds Global Nanobiotechnology Industry 7Reportlinker Adds Global Nanobiotechnology Industry 8Reportlinker Adds Global Nanobiotechnology Industry 9Reportlinker Adds Global Nanobiotechnology Industry 10Reportlinker Adds Global Nanobiotechnology Industry 11Reportlinker Adds Global Nanobiotechnology Industry 12Reportlinker Adds Global Nanobiotechnology Industry 13Reportlinker Adds Global Nanobiotechnology Industry 14Reportlinker Adds Global Nanobiotechnology Industry 15Reportlinker Adds Global Nanobiotechnology Industry 16Reportlinker Adds Global Nanobiotechnology Industry 17
... Analysis Note: Protein determined ... in 3.2 M (NH 4 ... pH 7.0 Preparation Note: Affinity ... sulfate suspension • Additives: MgCl ...
... MW: 60kDa (A) and 36kDa (C) ... pH 7.5, 500mM NaCl, 60mM 2-mercaptoethanol, ... 1mM DTT, and 0.1mg/ml serum albumin ... of proteins. Purification: DEAE chromatography, aminohexyl-agarose ...
... Label IT siRNA Tracker Intracellular Localization Kit ... label and deliver siRNA, of your design, ... in vitro tracking experiments. Subcellular localization and ... be monitored following introduction of the labeled ...
Selective media for Salmonella...
Biology Products: