Rapid genomic and physiological responses for social dominance

For many animals, possibly even for humans, mating success is determined by social status or dominance. A male's position in the "pecking order" - a term coined by the Norwegian Thorleif Schjelderup-Ebbe, who first proposed the concept of social dominance based on his work with chickens - can actually control his fertility. Social status also has other well-established, long-term physiological consequences. It can determine how big an animal grows, for example, or how it responds to stress. However, little is known about the neural mechanisms that link the social environment to the physiological changes associated with dominance.

In a paper published in the open-access journal PLoS Biology, Sabrina Burmeister, Erich Jarvis, and Russell Fernald demonstrate that subordinate male cichlid fish become dominant within minutes of an opportunity to do so, rapidly developing the bright coloration of dominant males and indulging in dominant behaviors. The authors simulated natural social upheavals by removing the dominant male an hour before daylight (cichlids rely primarily on visual cues to monitor their social position) from a social group consisting of several females, a dominant male, and a subordinate male - an approach designed to represent naturally occurring behavioral and neural responses. The authors then watched the erstwhile subordinate male for behavioral signs of dominance, and measured changes in the expression of a class of genes called immediate-early genes within the brain. The proteins encoded by these genes - which show behavior-specific expression in many animals - induce the expression of other genes in the brain that produce changes in the animal's physiology. Subordinate and dominant males whose position in the social hierarchy had not been experimentally manipulated were similarly examined.

At the moment of development of the bright coloration and behavior associated with dominant males, the expression of the immediate-early gene

Contact: Paul Ocampo
Public Library of Science

Page: 1 2

Related biology news :

1. Rapid evolution of defense genes in plants may produce hybrid incompatibility
2. Rapid syphilis testing in Haiti will prevent congenital disease and stillbirths
3. Rapid-fire jaws propel ants to safety
4. Biological diversity and human health; Rapid autopsy program; Snake bites and more
5. How a zebra lost its stripes: Rapid evolution of the quagga
6. Rapid, new test develped for inherited immune deficiency
7. One mans junk may be a genomic treasure
8. DOE Joint Genome Institute secures long-term lease on production genomics facility
9. Virus widely used in gene therapy research yields important clues to genomic instability
10. DOE JGI sets gold standard for metagenomic data analysis
11. Bronfman gift to Mount Sinai catalyzes genomics-based medicine

Post Your Comments:

(Date:6/25/2020)... ... 24, 2020 , ... eClinical Solutions LLC , a ... accelerate drug development, is collaborating with Karyopharm Therapeutics (Nasdaq: KPTI ) on ... severe COVID-19. This is the first study of an XPO1 inhibitor in patients ...
(Date:6/23/2020)... ... ... The field of quantitation of large molecules or proteins has been around ... the use of mass spectrometry in this field has gained a lot of momentum ... choose which approach to use (LBA or MS)?” In many cases, either technology ...
(Date:6/19/2020)... ... June 16, 2020 , ... The director of stem cell biotechnology company ... stem cell medicine and pharmaceutical industries have easier access to stem cell counting, they ... 5 of this year, Independence Day weekend in the U.S., Asymmetrex is offering free ...
Breaking Biology News(10 mins):
(Date:7/22/2020)... ... ... Join experts from Reed Tech , Gary Saner, Sr. Manager, Information ... live webinar on Thursday, August 13, 2020 at 11am EDT (4pm BST/UK). ... Specifically, for medical devices, the NMPA has departments dealing with medical device registration (pre-market ...
(Date:7/18/2020)... ... July 16, 2020 , ... ... in the early detection and prevention of high-burden diseases, and Centric Consulting, a ... and healthcare organizations to utilize existing data in order to identify and prioritize ...
(Date:7/10/2020)... BALTIMORE (PRWEB) , ... July ... ... Baltimore biotechnology company, announced today that Massachusetts Institute of Technology (MIT) has ... This broader license allows PathSensors to move into the point-of-care diagnostic market, ...
(Date:7/7/2020)... ... 06, 2020 , ... R3 International is now offering stem cell therapy for ... cells. Depending on the patient's condition, treatment may be offered IV, intrathecal or with ... form of Alzheimers dementia, and the incidence continues to increase as individuals live longer. ...
Breaking Biology Technology:
Cached News: