Navigation Links
Epigenetics shapes fate of brain vs. brawn castes in carpenter ants
Date:2/13/2013

ead, so the force of its mandibles can break larger prey. It does more nest and colony defense."

The minor caste, on the other hand, is smaller and more numerous. "They do most of the nursing within a colony, take care of the young, and they will also go out and collect most of the food," says Simola. "On average, 75 to 80 percent of the foraging activity is done by the minors." The minor also has a considerably shorter lifespan than the major caste, making the ant castes a good model for longevity studies as well as behavioral studies.

But how do such marked differences arise when both the major and the minor castes share the same genome? "For all intents and purposes, those two castes are identical when it comes to their gene sequences," notes senior author Berger, professor of Cell and Developmental Biology. "The two castes are a perfect situation to understand how epigenetics, how regulation 'above' genes, plays a role in establishing these dramatic differences in a whole organism."

To understand how caste differences arise, the team examined the role of modifications of histones (protein complexes around which DNA strands are wrapped in a cell's nucleus) throughout the Camponotus floridanus genome, producing the first genome-wide epigenetic maps of genome structure in a social insect. Histones can be altered by the addition of small chemical groups, which affect the expression of genes. Therefore, specific histone modifications can create dramatic differences between genetically similar individuals, such as the physical and behavioral differences between ant castes.

"These chemical modifications of histones alter how compact the genome is in a certain region," Simola explains. "Certain modifications allow DNA to open up more, and some of them to close DNA more. This, in turn, affects how genes get expressed, or turned on, to make proteins. These modifications establish specific features of different tissues within an indivi
'/>"/>

Contact: Karen Kreeger
karen.kreeger@uphs.upenn.edu
215-349-5658
University of Pennsylvania School of Medicine
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Study finds epigenetics, not genetics, underlies homosexuality
2. Sick from stress? Blame your mom… and epigenetics
3. Not by DNA alone: How the epigenetics revolution is fostering new medicines
4. Epigenetics and epidemiology -- hip, hype and science
5. New geometries: Researchers create new shapes of artificial microcompartments
6. Oh, my stars and hexagons! DNA code shapes gold nanoparticles
7. Not a 1-way street: Evolution shapes environment of Connecticut lakes
8. Early music lessons boost brain development
9. Human brain is divided on fear and panic
10. Propping open the door to the blood brain barrier
11. Leadership Chair to champion tech devices for brain trauma, disease
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Epigenetics shapes fate of brain vs. brawn castes in carpenter ants
(Date:9/1/2015)... MOUNTAIN VIEW, Calif. , Sept. 1, 2015 ... interaction with travelers during airport passenger screening. This ... which the passenger screening process will become unintrusive. ... and pre-clearance based on voluntary background investigations will ... analysis from Frost & Sullivan, Global Airport ...
(Date:8/25/2015)... BELLEVUE, Wash. , Aug. 25, 2015 ... systems, announced today it will unveil its "Guardian S" ... at the National Tactical Officers Association Conference on August ... Guardian S is the first-ever commercially available energetically autonomous ... research and in-field trials and is protected by more ...
(Date:8/20/2015)... CT ., Aug. 20, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... announces it has joined The Smart Card Alliance and ... Smart Card Alliance and the Smart Card Alliance Latin ... visibility to industry peers and thought leaders promoting adoption ...
Breaking Biology News(10 mins):The Future of Airport Security: Passenger Screening Transitioning Into an Invisible Process 2The Future of Airport Security: Passenger Screening Transitioning Into an Invisible Process 3The Future of Airport Security: Passenger Screening Transitioning Into an Invisible Process 4Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 2NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 4
... biosensor microchip that could significantly speed up the ... highly sensitive "nanosensors," analyze how proteins bind to ... effectiveness and possible side effects of a potential ... nanosensors can simultaneously and continuously monitor thousands of ...
... oil spill caused social disruption and psychological stress among ... the Exxon Valdez spill and the impacts are likely ... "Just ask the residents of Cordova today whether they ... Ritchie, assistant director for research of the University of ...
... study by researchers at the Virginia Institute of Marine ... does kill large numbers of copepodstiny crustaceans that are ... studyby VIMS graduate student Samantha Bickel, VIMS professor Kam ... the March issue of the Journal of Experimental ...
Cached Biology News:New biosensor microchip could speed up drug development, Stanford researchers say 2New biosensor microchip could speed up drug development, Stanford researchers say 3Gulf oil spill similar to Exxon Valdez in initial social and mental impacts, study finds 2VIMS study: Propeller turbulence may affect marine food webs 2VIMS study: Propeller turbulence may affect marine food webs 3
(Date:9/1/2015)... , ... September 01, 2015 , ... In her thought ... transports the reader to a not-so-distant future faced with an Ebola pandemic that is ... who overcomes personal tragedy to enter the world of counterterrorism, and who continues to ...
(Date:9/1/2015)... , ... September 01, 2015 , ... ... joint disease. , Equine cervical facet joint problems can be caused by ... and can cause impingement of nerve roots or of the spinal cord itself. ...
(Date:9/1/2015)... ... September 01, 2015 , ... Leading CEOs, CSOs, CMOs, ... management space join prominent academics and key investors for Neuro Advance Boston, October ... in Boston. , Neuro Advance Boston focuses on the latest developments and ...
(Date:9/1/2015)... , Sept. 1, 2015   Medfusion, Inc., ... the relationship between doctors and patients, today announced ... Durham, N.C. -based venture capital firms.   ... business association with Bull City Venture Partners and ... Medfusion Founder and Executive Chairman. "Both firms, experience ...
Breaking Biology Technology:Alexi Venice’s Debut Novel Takes on the Human Testing of a Vaccine for Ebola and Revenge by an Anti-Big Pharma Terrorist Group in ‘Ebola Vaccine Wars' 2Alexi Venice’s Debut Novel Takes on the Human Testing of a Vaccine for Ebola and Revenge by an Anti-Big Pharma Terrorist Group in ‘Ebola Vaccine Wars' 3VetStem Biopharma Announces New Clinical Research Program for Equine Cervical Facet Joint Disease 2VetStem Biopharma Announces New Clinical Research Program for Equine Cervical Facet Joint Disease 3Neuro Advance Boston Brings Together Leading Neuroscience Experts on October 14 at Harvard Medical School 2Medfusion Secures Funding to Continue Evolution and Advance Mobile Strategy 2Medfusion Secures Funding to Continue Evolution and Advance Mobile Strategy 3
... Incorporated,(Nasdaq: SPEX ) reported a net loss for the three months ended March 31,2008 ... on the company,s on-going Phase 3 clinical trial,in the use of Naturlose for the treatment ... million and reflected the,start-up costs for the trial., , ... ...
... their 2008 Annual,Meeting, shareholders of Spherix Incorporated (Nasdaq: SPEX ) ... Douglas T. Brown, Senior VP and Manager of Corporate Banking Government ... Cox, Jr., Principal, Asset Protection Company -- Claire L. Kruger, ... Spherix -- Gilbert V. Levin, Ph.D., Director of Science and ...
... Executive Chairman Set Sights on Expanding,Therapeutic Horizons of ... BOSTON, SAN DIEGO, SAN FRANCISCO and SEATTLE, May ... joined Fate Therapeutics as,president and CEO and executive ... internationally recognized stem cell scientists,clinicians and investors dedicated ...
Cached Biology Technology:Spherix Reports 1st Quarter Earnings 2Spherix Holds Annual Shareholders Meeting 2Fate Therapeutics Taps Successful Biotech CEOs Paul Grayson and John Mendlein for Leadership Team 2Fate Therapeutics Taps Successful Biotech CEOs Paul Grayson and John Mendlein for Leadership Team 3Fate Therapeutics Taps Successful Biotech CEOs Paul Grayson and John Mendlein for Leadership Team 4Fate Therapeutics Taps Successful Biotech CEOs Paul Grayson and John Mendlein for Leadership Team 5Fate Therapeutics Taps Successful Biotech CEOs Paul Grayson and John Mendlein for Leadership Team 6
... This CLS number is ... to easily match Cornings product ... yet, please order under the ... contact customer service for assistance. ...
... Low Speed Shaker ,Product Information ... shaker is a high quality, general purpose shaker ... after the other models in the line, the ... easy-access control panel. Electronic controls are utilized for ...
... a chromogenic medium for the detection, ... (except S. thyphi) and total coliforms ... takes a maximum of 24 hours, ... sterilization during preparation and performs a ...
... ActiveSight, the leading provider of X-ray ... offers fragment-based screening services to its ... involves the binding of drug-like fragments ... protein drug targets, allowing scientists to ...
Biology Products: