Navigation Links
Environs prompt advantageous gene mutations as plants grow; changes passed to progeny
Date:7/1/2011

If a person were to climb a towering redwood and take a sample from the top and bottom of the tree, a comparison would show that the DNA are different.

Christopher A. Cullis, chair of biology at Case Western Reserve University, explains that this is the basis of his controversial research findings.

Cullis, who has spent over 40 years studying mutations within plants, most recently flax (Linum usitatissimum), has found that the environment not only weeds out harmful and useless mutations through natural selection, but actually influences helpful mutations.

Cullis published his findings in the International Journal of Genetics and Molecular Biology and repeated them in the Journal of Visualized Experiments, where he challenged other scientists to repeat his experiment themselves.

Specifically, Cullis focuses on mutations involving the appearance of a small sequence of DNA known as LIS-1 and how the environment affects these changes.

The controversy stems from the idea that the environment changes organisms as they grow and these changes are passed on.

While originally accepted, the theory was eventually thrown out because science revealed that animals pass along DNA through their gamete or sex cells, which are not affected by the environment. This concept was assumed to be the same for plants, but Cullis's research says otherwise.

In his second study, three separate strands (the plastic strand, short strand, and tall strand) of the Stormont Cirrus variety of flax were grown under three separate conditions.

Each of the strands had been bred over multiple generations under different conditions: The plastic strand's ancestors were grown under control conditions, the short strand's ancestors were grown under low-nutrient conditions, and the tall strand's ancestors were grown under high-nutrient conditions.

The experiment showed each strand responded to each condition in a
'/>"/>

Contact: Kevin Mayhood
kevin.mayhood@case.edu
216-368-4442
Case Western Reserve University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Promptu Unveils High Accuracy Voice-to-Text Dictation for Mobile Phones at CTIA
2. New hybrid plants could prompt more prodigious pepper production in Southwest
3. What really prompts the dogs guilty look
4. Princeton researchers find that high-fructose corn syrup prompts considerably more weight gain
5. Researchers discover gene mutations that cause childhood brain cancer
6. Penn biologists discover how silent mutations influence protein production
7. Rapid approach to identify influenza A virus mutations and drug resistance developed
8. Further gene mutations linked to autism risk
9. DNA mutations linked to diabetes
10. Species diversity helps ASU researchers refine analyses of human gene mutations
11. Study of huge numbers of genetic mutations point to oxidative stress as underlying cause
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... is a technique used to read quickly. It ... skipping non-essential words and/ or sentences. Similarly to ... to quickly "read" genetic information. Genes that need ... the smaller the encoding message, the easier it ... from Instituto Gulbenkian de Cincia (IGC, Portugal) and ...
(Date:4/22/2014)... of Yale researchers will lead a five-year, $3 million ... events is affecting the transport of dissolved organic matter ... say could alter the chemical composition and water quality ... funding from the National Science Foundation,s MacroSystems Biology program, ... the watershed, which begins in Canada and runs through ...
(Date:4/22/2014)... International Science Consortium Ltd.,s nanotechnology expert will present a ... hazard assessment" at the 7th International Nanotoxicology Congress ... Turkey. , Dr. Monita Sharma will outline a ... National Academy of Sciences, " Toxicity Testing in the ... recommends use of non-animal methods involving human cells and ...
Breaking Biology News(10 mins):Cell division speed influences gene architecture 2Connecticut River watershed study will assess impacts of extreme rain events 2Connecticut River watershed study will assess impacts of extreme rain events 3
... 2012 The Crop Science Society of America (CSSA) announces ... their Annual Meetings, Oct. 21-24, 2012 in Cincinnati, OH. Members ... achievements and meritorious service. Only 0.3 percent of the Society,s ... class of CSSA Fellows are: Marc C. Albertsen, ...
... biological cells like a skin. They also surround organelles ... division. Scientists have long known in principle how biomembranes ... a role in maintaining the optimal distance between neighboring ... with the help of computer simulations, scientists of the ...
... Bioluminescence may play a key role in successful foraging ... research published Aug. 29 in the open access journal ... led by Jade Vacqui-Garcia, monitored the diving behaviour of ... Ocean that were also equipped with light detectors. The ...
Cached Biology News:Crop Science Society of America presents 2012 class of fellows 2Crop Science Society of America presents 2012 class of fellows 3Keep your distance! Why cells and organelles don't get stuck 2
(Date:1/14/2014)... Date: Friday, April 11, 2014 , Time: 6 ... Almshouse Road, Warrington, Pa. , Details: The Hepatitis ... finding a cure for hepatitis B and improving the quality ... Crystal Ball on Friday, April 11 at Warrington Country Club ...
(Date:1/14/2014)... NY (PRWEB) January 14, 2014 EquitiesIQ, ... Alliqua, Inc. (OTCQB: ALQA). Alliqua is an emerging biomedical ... serve the wound care market. , Free report download: ... restructured with a seasoned management team and Board, which ...
(Date:1/14/2014)... , Jan. 14, 2014  RXi Pharmaceuticals Corporation (OTCQX: ... and commercializing innovative therapies addressing major unmet medical ... received the Notice of Allowance from the United ... self-delivering RNAi compounds (sd-rxRNA®), for the treatment of ...
(Date:1/14/2014)... Rochester, NY (PRWEB) January 14, 2014 During ... is now known as “The Doctor’s Plague.” In this time ... their hands. This led, at times, to the death of ... staff today don’t know that they may be unwittingly transmitting ...
Breaking Biology Technology:Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 3
... EASTON, Mass., March 6 Pressure,BioSciences, Inc. (Nasdaq: ... teleconference to discuss its 2007 financial results and to ... teleconference either,by telephone or through a live web-cast. The ... March 12, 2008, Time: 4:30 p.m. Eastern Daylight ...
... to Support European Partnerships, ALAMEDA, Calif., and ... collaboration with Novartis Pharma AG to give Novartis,access ... Technology Access Program (ETAP). Terms of the collaboration,were ... opening of a,facility in Paris, France to support ...
... Recently the State of,Brandenburg, and the EU, ... Alcat Europe, GmbH, covering marketing and employee costs ... laboratory company located in the BioTech Park in,Hennigsdorf ... food and,chemical sensitivities through the Alcat test method. ...
Cached Biology Technology:Pressure BioSciences, Inc. to Discuss 2007 Financial Results and Provide Business Update 2Singulex Collaborates With Large Pharmaceutical Company in Erenna(TM) Technology Access Program 2European Union, State of Brandenburg, Award Grants to Alcat Europe, GmbH 2
... Sequencer 20 System revolutionizes DNA sequencing, delivering ... The Genome Sequencer 20 System includes: ... and consumables for library construction, amplification, and ... de novo assembly The ...
... The RapidVUE is a particle shape and ... has been designed with the utmost simplicity in ... sample delivery module and an optical bench. The ... allows for easy upgrade for different applications such ...
... The ProteoSpin Detergent Clean-up Micro Kit provides ... removal of SDS, Triton X-100 and other detergents ... spin-column chromatography using Norgens patented protein resin as ... processing 2 50 g of either acidic or ...
... degradation is critical to the maintenance ... regulatory proteins as important and diverse ... heat shock and stress response, antigen ... and ion channels, cell cycle regulation, ...
Biology Products: