Navigation Links
Sudden change in social status triggers genetic response in male fish, study finds

ocial status also trigger cellular and molecular changes in the brain, he adds, which could have significant implications for understanding how other vertebrates, including humans, respond to social information.

"I think there could be parallels in human social status change," Fernald says. "For example, if you're in a situation that's socially awkward, it may influence how well you can speak, or your sense of yourself may be altered. Those reactions have to have some kind of cellular underpinnings."

The study also contributes to a growing body of scientific evidence that fish are more than mindless creatures that instinctively swim about in search of food and mates. "Our study shows that the male cichlid is obviously interacting with the world around it," says Burmeister, a former postdoctoral fellow in the Fernald lab, now assistant professor of biology at the University of North Carolina-Chapel Hill. "The subordinate male is responding to the absence of another individual, so he has to have some kind of understanding of what their relationship was in the past and what it is now. This implies a cognitive ability to process complex information, which is much more that we usually think of in fish."

Reversible dominance

The PloS Biology study is the latest in a series of experiments from the Fernald lab on the behavior of Astatotilapia (Haplochromis) burtoni--one of hundreds of cichlid species that inhabit Lake Tanganyika and other freshwater lakes in East Africa. Like all cichlids, A. burtoni lives in a hierarchical social system where showy dominant males defend small territories that are used for courtship and breeding. However, dominance among male cichlids is reversible: If a subordinate successfully challenges a dominant male in a face-to-face confrontation, the dominant fish will lose his status and with it his vibrant coloring, black eyebar and the ability to produce sperm.

In earlier studies, Fernald a
'"/>

Source:Stanford University


Page: 1 2 3 4 5 6

Related biology news :

1. Elusive HIV shape change revealed; Key clue to how virus infects cells
2. Researchers trace evolution to relatively simple genetic changes
3. Plants defy Mendels inheritance laws, may prompt textbook changes
4. Small species back-up giant marsupial climate change extinction claim
5. Africa to take it on chin again with climate change
6. Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage
7. By creating molecular bridge, scientists change function of a protein
8. Logging changed ecological balance for monkeys, damaged health
9. York scientists warn of dramatic impact of climate change on Africa
10. Lands surface change on Alaska tundra creating longer, warmer summers in Arctic
11. New markers of climate change
Post Your Comments:
(Date:10/16/2014)... be cultivated efficiently, they are anything but sustainable: ... monoculture cultivation is becoming increasingly evident. Despite their ... and are regarded as the sole possibility of ... wrongfully, finds Bernhard Schmid, an ecology professor at ... form of agriculture and forestry. After all, a ...
(Date:10/15/2014)... PORT WASHINGTON, N.Y. , Oct. 15, 2014 ... in technology solutions for home and community-based care, ... the benefits of implementing Sandata,s Santrax® Electronic Visit ... Quality Care Services is a home health company ... Texas . ...
(Date:10/15/2014)... spreading rapidly and to an unexpected extent. The outbreak ... and the virus shows a new disease dynamic in ... this reason, the German National Academy of Sciences Leopoldina, ... and the Union of the German Academies of Sciences ... epidemic today. , In the statement the academies call ...
Breaking Biology News(10 mins):Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3Sandata Announces Case Study with Quality Care Services, Inc. 2Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5
... 2012 Aware, Inc. (NASDAQ: AWRE ), a leading ... financial results for its first quarter ended March 31, 2012.  ... million, a decrease of 10% compared to $6.4 million in the ... 2012 was $1.1 million, or $0.05 per diluted share. These results ...
... Huntington disease (HD) is an inherited neurodegenerative disorder ... the Huntingtin gene, a CAG repeat occurs too many ... or 50s, but studies have shown that significant brain ... diagnosis. As a result, the field has sought a ...
... of Plant Biologists (ASPB) is pleased to announce the recipients ... and service. Charles Reid Barnes Life Membership ... University of Florida, Gainesville , Established in 1925, the ... honoring lifelong service in plant biology. Hanson, this year,s honoree, ...
Cached Biology News:Aware, Inc. Reports First Quarter 2012 Financial Results 2Aware, Inc. Reports First Quarter 2012 Financial Results 3Aware, Inc. Reports First Quarter 2012 Financial Results 4Aware, Inc. Reports First Quarter 2012 Financial Results 5Striatal brain volume predicts Huntington disease onset 2ASPB names 2012 award recipients 2ASPB names 2012 award recipients 3ASPB names 2012 award recipients 4ASPB names 2012 award recipients 5
(Date:10/22/2014)... and HONG KONG , Oct. 22, ... therapeutics enterprise, announced today that rare disease expert ... vice president, research. Dr. McKew brings more than two ... positions at the National Institutes of Health, Wyeth Research ... Wyeth). Dr. McKew will lead aTyr,s efforts to expand and ...
(Date:10/20/2014)... Richardson, Texas (PRWEB) October 20, 2014 ... today announced that a team from Iowa State University ... * design contest. Using a Convey HC-2ex, the team’s ... than 14 times faster than the second place finisher. ... academic world embarked upon the month long challenge, using ...
(Date:10/20/2014)... , A major pan-European survey ... delivery of care has revealed changing trends in many ... the provision of healthcare services across the continent. The ... European Gastroenterology (UEG), have been announced today and led ... the burden of GI disorders across Europe ...
(Date:10/20/2014)... October 20, 2014 OncLive® ... Kimmel Cancer Center at Thomas Jefferson University has ... Through the Strategic Alliance Partnership program, the Sidney ... collaborate to raise awareness of the Center’s cutting-edge ... other projects. Clinicians and other health care professionals ...
Breaking Biology Technology:aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3
... to $33.2 Million, ... $12.8 Million, -- The Company Provides ... NEW YORK and HAIKOU, Hainan, China, March 31,/Xinhua-PRNewswire-FirstCall/ -- ... which develops, manufactures, and,markets generic and branded bio-pharmaceutical products ...
... on Lead Compounds That Directly and Specifically Activate ... ... Massachusetts, March 31 Mercury Therapeutics,Inc. (MTI), a company that discovers ... filed for patent protection on,three lead compounds that directly and specifically ...
... Vaccine Technology and ... Bird Flu Clinical Program, Webcast/teleconference Call Set ... March 31 Carrington,Laboratories, Inc. (OTC Bulletin Board: CARN) today reported ... ($0.90) per basic and,diluted share, for the year ended December 31, ...
Cached Biology Technology:China Pharma Holdings, Inc. Announces Record 2007 Year End Results 2China Pharma Holdings, Inc. Announces Record 2007 Year End Results 3China Pharma Holdings, Inc. Announces Record 2007 Year End Results 4China Pharma Holdings, Inc. Announces Record 2007 Year End Results 5China Pharma Holdings, Inc. Announces Record 2007 Year End Results 6China Pharma Holdings, Inc. Announces Record 2007 Year End Results 7China Pharma Holdings, Inc. Announces Record 2007 Year End Results 8China Pharma Holdings, Inc. Announces Record 2007 Year End Results 9China Pharma Holdings, Inc. Announces Record 2007 Year End Results 10China Pharma Holdings, Inc. Announces Record 2007 Year End Results 11Mercury Therapeutics Patents Filed 2Mercury Therapeutics Patents Filed 3Carrington Reports 2007 Financial Results 2Carrington Reports 2007 Financial Results 3Carrington Reports 2007 Financial Results 4Carrington Reports 2007 Financial Results 5Carrington Reports 2007 Financial Results 6Carrington Reports 2007 Financial Results 7
MOUSE ANTI HUMAN CYTOKERATIN 1-8...
Immunogen: Tissue / cell preparation. (Murine EHS laminin preparation) Storage: -20 C, Avoid Freeze/Thaw Cycles...
p-Raf-1 (Ser 338/Tyr 341)-R...
Rabbit polyclonal to Syntrophin alpha 1 ( Abpromise for all tested applications). entrezGeneID: 6640 SwissProtID: Q13424...
Biology Products: