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:2/5/2015)... , Jan. 27, 2015   ... of globally deployed, innovative test solutions for ... the delivery of its TS-323 GENASYS ... Systems Company (LMSSC). GENASYS is a high-performance ... of mission-critical applications that require performance functional ...
(Date:2/5/2015)... DUBLIN , Jan. 28, 2015 Research ... announced the addition of the "Global Biometrics ... Use, Regions and Countries " report to their ... market, Asia-Pacific is anticipated ... by 2015, owing to increasing government spending towards ...
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ( ... - A Global Market Overview" report to their offering. ... is to ensure that an individual is who she/he is ... make use of a person,s unique physical characteristics, such as ...
Breaking Biology News(10 mins):Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 3Biometrics - A Global Market Overview 2Biometrics - A Global Market Overview 3
... A test for the two strains of human papillomavirus responsible ... molecular assay uses a cervical scraping, like that for a ... 18, responsible for 70 percent of cervical cancers, says Dr. ... Gynecologic Cancer Prevention Center at the Medical College of Georgia. ...
... the world’s 162 species of grouper, a culinary favorite ... with extinction unless proper management or conservation measures are ... Conservation Union (IUCN) as under extinction threat, and the ... of 20 experts from 10 nations determined the extinction ...
... way primitive yeast make cholesterol, a team of ... counterpart controls cholesterol production and potentially drug metabolism. ... Hopkins University School of Medicine, Vanderbilt University, Indiana ... the February issue of Cell Metabolism. ...
Cached Biology News:New test for most virulent HPV strains under study 2New test for most virulent HPV strains under study 3Twenty of world's 162 grouper species threatened with extinction 2Primitive yeast yields secrets of human cholesterol and drug metabolism 2
(Date:2/27/2015)... The fully automated supercritical fluidic ... sequentially analyze up to 48 samples utilizing automatic ... of targets by mass spectrometry. , The ... measurement requirements of a wide range of applications, ... and search for disease biomarkers, additives in forming ...
(Date:2/27/2015)... 2015 Cytokinetics, Incorporated (Nasdaq: CYTK) announced ... with patients and health care advocates in the United ... Day®. Rare Disease Day is dedicated to elevating ... the special challenges faced by patients with rare diseases ... proud to stand alongside patients and caregivers representing the ...
(Date:2/26/2015)... N.J. , Feb. 26, 2015 On ... and its affiliated companies, Wilentz, Goldman & Spitzer, ... trade secrets lawsuit against Genewiz Inc. in excess of ... and utilized GenScript,s trade secrets, and that it improperly ... entered an order denying motions for judgment notwithstanding the ...
(Date:2/26/2015)... 26, 2015   Regulus Therapeutics Inc . (NASDAQ: ... discovery and development of innovative medicines targeting microRNAs, today ... and Chief Executive Officer of Regulus, will present a ... Annual Healthcare Conference on Wednesday, March 4, 2015 ... at the Boston Marriott Copley Place.  ...
Breaking Biology Technology:Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 6Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 2Regulus to Present at Cowen and Company 35th Annual Healthcare Conference 3
... South Korean researcher whose stem cell work may have ... who support human embryonic stem cell research, and a ... ,If theres a positive side to the alleged ... with how stem cell science is conducted elsewhere. Hwangs ...
... a governor who delivers a State of the State speech ... an aspiring ex-governor. , ,Whether Republican or Democrat, riding ... governors always use their annual State of the State speech ... the voters. Gov. Jim Doyles fourth report to the state ...
... Wis. Johnson Controls reported net income of $165 ... from the $168 million it made in the same period ... by quarterly sales of $7.5 billion, up from $6.6 billion ... Delphi's battery business. , ,Reuters reported that Johnson Controls' movements ...
Cached Biology Technology:Stem cell breakthrough by UW shows why federal research should be broadened 2Stem cell breakthrough by UW shows why federal research should be broadened 3How's the State of the State? It depends on what numbers are crunched 2How's the State of the State? It depends on what numbers are crunched 3
Polymerase (RNA) II (DNA directed) polypeptide L...
...
...
... in RPMI 1640 with 2 mM L-glutamine and ... In order to keep the antigens in their ... The cells are arrayed on a 12-well (5 ... specifically treated to enhance cellular attachment and to ...
Biology Products: