Navigation Links
Are new genes always better?
Date:1/30/2010

s crossed with foreign plants did not do as well as the local parents, some second-generation offspring and all the backcrossed plants performed as well as the local plants. Thus, over time the poorer performing foreign genes were diluted with parental genes from the local population with the end result of fewer maladapted genotypes overall.

If distance from the site did not show long-term negative effects, how would genes from populations located closer to the damaged site but from a contrasting environment affect local plant populations? When local plants were crossed with plants from a nearby, but much drier, site, seedling performance in the first and second generation of progeny was much worse than in the distant crosses.

Although the study is relatively small scale, three generations of offspring were followed, which is relevant for assessing long-term consequences of introducing new genes to populations. The authors conclude that when new, foreign genes are introduced to a damaged site, the neighboring populations may experience initial negative effects; however, over time, as long as the populations do not experience additional foreign gene input, the negative effects may diminish and the maladapted foreign genes will decrease. Moreover, when selecting seeds or plants for re-vegetating damaged sites, it may be more important to match up habitat types or environments than be concerned with distance per se.

"More research on the long-term effects of gene flow introduced into local populations and their consequences for population persistence in widespread and rare plant species is needed to determinate the generality of these findings," said Crmieux.


'/>"/>

Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert

Page: 1 2

Related biology news :

1. Gene regulation, not just genes, is what sets humans apart
2. Interaction of just 2 genes governs coloration patterns in mice
3. Muscle mass: Scientists identify novel mode of transcriptional regulation during myogenesis
4. Study finds blocking angiogenesis signaling from inside cell may lead to serious health problems
5. Smoking turns on genes -- permanently
6. Genes, Environment and Health Initiative invests in genetic studies, environmental monitoring
7. Hebrew SeniorLife researchers search for aging, osteoporosis genes
8. UT Southwestern researchers identify hundreds of genes controlling female fertility
9. Genes and environment grant funds close look at nature-nurture overlap in common diseases
10. Jumping genes could make for safer gene delivery system
11. Genes from the father facilitate the formation of new species
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/4/2014)... , Dec. 3, 2014  Crossmatch™, a ... announced that its DigitalPersona ® Pro Enterprise ... have been deployed throughout First Bank branch locations ... South Carolina and Virginia. First Bank, ... Southern Pines, North Carolina , selected ...
(Date:11/21/2014)... MOUNTAIN VIEW, Calif. , Nov. 20, 2014 /PRNewswire/ ... for higher driver efficiency are piloting the North American ... the number of accidents growing, gesture recognition systems that ... will make a mark in the industry. ... of the Automotive Gesture Recognition Market in ...
(Date:11/18/2014)... BETHESDA, Md. , Nov. 17, 2014 The ... European and U.S. regulatory agencies will speak and at least ... Quality Metrics Conference at the Omni Shoreham Hotel in ... is pleased once again to have significant support from the ... and Europe in our effort to ...
Breaking Biology News(10 mins):First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2
... press release is available in French . ... Laval researchers and their colleagues from the Canadian Forest Service ... and fir has remained very much the same for over ... between today,s conifers and fossils dating back to the days ...
... Rochelle, NY, December 13A leading scientific society of university ... research in the sciences and technologies of environmental protection, ... (AEESP) , has selected the peer-reviewed journal ... Environmental Engineering Science is read around the ...
... animal cell is like a small city, with factoriescalled ... life functions. A network of intercellular "highways," called microtubules, ... speedily about the cell to keep this vital machinery ... Proceedings of the National Academy of Sciences ...
Cached Biology News:Your Christmas tree and its genome have remained very much the same over the last 100 million years 2Association of Environmental Engineering and Science Professors name Environmental Engineering Science as its official journal 2Study sheds light on how cells transport materials along crowded intercellular 'highways' 2Study sheds light on how cells transport materials along crowded intercellular 'highways' 3
(Date:12/17/2014)... (PRWEB) December 17, 2014 Gene ... that it has entered into a technology access ... (ADM) to apply DNA2.0’s proprietary protein engineering technology, ... process. , “We are extremely excited that the ... platform. This proprietary bioengineering technology has now ...
(Date:12/17/2014)... SOUTH SAN FRANCISCO, Calif. , Dec. 17, ... positive results of a Phase 2 study evaluating ... for the treatment of patients with severe, chronic ... the current standard of care, including topical steroids ... endpoint was percent change in Visual Analog Scale ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... (PRWEB) December 12, 2014 Clarassance, a ... announced its new name: Therabron Therapeutics , Inc. ... and bronchioles (a type of structure in the lungs ... company’s mission to develop novel protein therapeutics for the ... directors decided to change the name to mark the ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... - Mercedes Walton, Chairman and CEO of Cryo-Cell International ... Fla., March 17 As the CEO of Cryo-Cell ... bank, Mercedes Walton has been an active participant in ... She has seen first-hand the changes that have taken ...
... Spiral Biotech, an Advanced Instruments company, will ... -- which delivers faster cycle times, a ... processing speed and efficiency in microbiology laboratories -- ... Meeting in May, 2009."The introduction of the new ...
... Ferring Pharmaceuticals Inc., a specialty pharmaceutical company, ... to Senior Vice President of the Ferring International ... for Ferring Pharmaceuticals Inc. Dr. Korner was ... Orthopaedics, Urology, and Gastroenterology therapeutic areas, as well ...
Cached Biology Technology:Stem Cell Industry Insider Mercedes Walton Discusses President Obama's Stem Cell Executive Order 2Stem Cell Industry Insider Mercedes Walton Discusses President Obama's Stem Cell Executive Order 3Spiral Biotech to Introduce New Autoplate Spiral Plating System at ASM General Meeting in May 2Spiral Biotech to Introduce New Autoplate Spiral Plating System at ASM General Meeting in May 3Dr. Paul Korner Promoted to Senior Vice President of Ferring International PharmaScience Center U.S. 2
...
Whole blood is collected from healthy guinea pigs of either sex from US source which are free of visible diseases at time of blood collection. Hemolytic titer: CH50 = 435 units...
... l-[35S]in vitro cell labeling mix, ... *Aqueous solution stabilized with 0.1% ... pyridine 3,4-dicarboxylic acid. *Amino acid ... labeling containing l-[35S]Methionine and l-[35S]Cysteine. ...
...
Biology Products: