Navigation Links
Plants display 'molecular amnesia'
Date:12/2/2008

This release is available in French.

Plant researchers from McGill University and the University of California, Berkeley, have announced a major breakthrough in a developmental process called epigenetics. They have demonstrated for the first time the reversal of what is called epigenetic silencing in plants.

The findings are important to develop a better understanding of gene regulation in the continuing quest to breed enhanced crops that produce higher yields, are more resistant to disease and can better tolerate environmental stress all keys to helping improve the world's food supply. But perhaps even more important, the discovery may lead to new insights into how epigenetic processes work in the human body, which could assist in developing new ways of modifying our genetic makeup to help us avoid such diseases as cancer.

Although nearly every cell in our body is genetically identical, the researchers explained, each cell type expresses a distinct set of genes. Changes to the proteins around which DNA is wound are called "epigenetic" modifications, because they alter patterns of this gene expression without changing the actual DNA sequence. However, like changes in DNA sequence, epigenetic modifications can be passed on from parent cell to daughter cell, ensuring each cell line has the proper characteristics consistently over many generations.

This process must be repeated each generation, and there is good evidence in animals that, during early development, there is a wave of epigenetic reprogramming that effectively "resets" this system. Some genes, it seems, must be more actively reset than others. And genes that do the same thing in every cell, regardless of tissue type, may not have to be reset at all.

One kind of gene is quite distinct from all of the others, because it is nearly always epigenetically inactiv
'/>"/>

Contact: Mark Shainblum
mark.shainblum@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Layered approach may yield stronger, more successful bone implants
2. Clever plants chat over their own network
3. Plants can be used to study how and why people respond differently to drugs
4. Book on weeds and invasive plants discusses how to manage them using ecological approaches
5. A greenhouse in order to study the impact of climate change on plants
6. Agent that triggers immune response in plants is uncovered
7. Scientists ramp up ability of poplar plants to disarm toxic pollutants
8. A new baseline of invasive plants in Isabela
9. Hungry microbes share out the carbon in the roots of plants
10. Scientists warn that species extinction could reduce productivity of plants on Earth by half
11. Cell transplants may improve severe urinary incontinence
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/24/2014)... New Rochelle, NY, April 24, 2014D-ribose is a ... nutritional supplement, and as a starting compound for ... of Escherichia coli to increase the ... step toward achieving more efficient industrial-scale production of ... in Industrial Biotechnology , a peer-reviewed journal ...
(Date:4/24/2014)... simple and cheap way of making a high-powered lens ... microscope. , Costing less than a cent, the lenses ... countries and remote areas. , The lens fabrication technique ... National University (ANU) Research School of Engineering, who collaborated ... Medical Research to find ways to transform the lentil-sized ...
(Date:4/24/2014)... Initial treatment for a brain infection caused by fungus could ... due to study by University of Liverpool scientists. , ... often fatal but are relatively neglected in medical research. ... Africa, Australasia and South East Asia and mainly affect people ... people a year. , The University research team has tested ...
Breaking Biology News(10 mins):Droplet lens 2Treatment for deadly yeast disease reduced to 3 days 2
... Reportlinker.com announces that a new market research report is ... Forecast to 2012 - http://www.reportlinker.com/p096440/Global-Biometric-Forecast-to-2012.html ... the fastest emerging markets for the past few years ... and the advent of new technologies that offered numerous ...
... and "Invasive Alien Species in the Caribbean Basin of Concern ... will be presented at a joint meeting between the Southeastern ... Caribbean Division of the American Phytopathological Society (APS). The ... San Juan, March 19-22, 2011, as hundreds of entomologists and ...
... To the surprisingly inventive uses for banana peels ... of house plants scientists have added purification of ... which concludes that minced banana peel performs better than ... journal Industrial & Engineering Chemistry Research . ...
Cached Biology News:Reportlinker Adds Global Biometric Forecast to 2012 2CSI and alien invaders in Puerto Rico 2
(Date:1/14/2014)... BETHESDA, Md. , Jan. 14, 2014 ... two institutes from the National Institutes of Health (NIH) ... safer, more effective treatments to patients on a faster ... Advancing Translational Sciences (NCATS) and the National Eye Institute ...
(Date:1/14/2014)... 14, 2014 In recent years, growing ... methods in product development and promotion has led to ... mistrust, fueled by concerns about the insidious impact of ... of spectacular fines to the world’s biggest pharmas for ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Global ... developing innovative information technology solutions for patients, physicians, ... care stakeholders, announced today the signing of a ... Food and Drug Administration (FDA). This initiative ...
(Date:1/14/2014)... UK (PRWEB) January 13, 2014 Bob ... with more than 20 years in the industry, has ... photonics . Hainsey will serve as the society’s Science ... Dr. Hainsey join SPIE as our Technology Strategist, further ...
Breaking Biology Technology:Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2
... With the first observation of thermoelectric effects at ... transistors have a nanoscale cooling effect that reduces their ... William King and electrical and computer engineering professor Eric ... April 3 advance online edition of the journal ...
... conventional optical instruments, light cannot be focused to spot ... effects. An important approach to beat this diffraction ... an allusion to their radiofrequency counterparts. They have the ... nanometer-scale dimensions, which are orders of magnitude smaller than ...
... Diego have produced the first high resolution structure of a ... was published in a paper in this week,s early online ... of Sciences by a team of chemists headed by ... UCSD. The scientists said the ability to carry structural ...
Cached Biology Technology:Self-cooling observed in graphene electronics 2Transmission lines for nanofocusing of infrared light 2Transmission lines for nanofocusing of infrared light 3
...
RABBIT ANTI PORCINE CARBOXYPEPTIDASE B...
LabFax: Immunochemistry...
... Maker, 1. Modular system for large ... up to six lab-cast or precast ... with 18- or 24-cm Immobiline DryStrip ... gel cassettes.Innovative design simplifies loading and ...
Biology Products: