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

Re-vegetation seems like a beneficial strategy for conserving and restoring damaged ecosystems, and using a variety of species can help increase biodiversity in these systems. But what are the risks involved with introducing seeds from other locations to plants located near the damaged site? Introduced populations often hybridize with the local populations from the same species, which can result in "polluting" neighboring populations with genes that are poorly adapted to local conditions. Long-term consequences of such "pollution" could negatively impact the survival of the existing native populations.

A recent article in the January issue of the American Journal of Botany by Lisle Crmieux and colleagues from the University of Fribourg in Switzerland (http://www.amjbot.org/cgi/content/full/97/1/94) looks at how gene flow from two distant populations and one local, but ecologically distinct, population affected a local population of Plantago lanceolata, a short-lived perennial herb. Seedling size, adult vegetative biomass, and estimated seed production were measured for two hybrid generations plus the first generation backcrossed with the local parents.

"We wanted to know whether the provenance of the seed material used in ecosystem restoration had an effect on the fitness of neighboring, locally adapted, populations," Crmieux said, "and not only on the success of the restored area itself."

The farther away two populations are, the larger the genetic differences are assumed to be and the more negative the consequences of hybridizing them. Crmieux and colleagues found that by the end of the growing season, the parental plants from the two distant (foreign) populations were smaller and produced fewer seeds than the local plants, indicating they were not well-adapted to the local environment. However, while the first generation of offspring resulting from local plant
'/>"/>

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:6/17/2015)... , June 17, 2015  Crossmatch™, a leading ... that its U.are.U ® 4500 fingerprint readers ... Eateries, Inc., a San Jose, ... to increase security, improve accountability and reduce fraud ... instant, non-repudiable identity confirmation for employee sign in ...
(Date:6/16/2015)... 2015 Fingerprint Cards has received an ... the company,s portfolio from one of its module partners in ... take place during the third quarter 2015. The sensors will ... . Jörgen Lantto, CEO of FPC, comments: " ... growing interest from smartphone OEMs in integrating touch fingerprint sensors ...
(Date:6/15/2015)... 2015 A new report [ ... majority of US consumers using mobile banking applications want their ... fingerprint and voiceprint, instead of having to prove who they ... " Mobile Identity   -   The Fusion of Financial ... now the primary channel used by Gen X and Gen ...
Breaking Biology News(10 mins):Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3FPC Receives Order for Touch Fingerprint Sensors of 375 MSEK 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 3One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 4
... Reasons why you should attend this workshop: , ... players in Assisted Reproduction Technologies (ART) data monitoring in ... ART monitoring: An overview of ART data in ... world what have we learned?, Possibilities and limitations ...
... favours traits that enhance dispersal of populations to ... however, is relatively scarce. A study carried out ... Environmental Sciences of the University of Helsinki, along ... traits facilitating dispersal in an outer archipelago. The ...
... LANSING, Mich. The hellbender salamander known affectionately ... one of America,s unique giant salamander species. For unexplained ... little reproduction has occurred in recent decades. ... Zoo in Belgium, veterinarians from Michigan State University are ...
Cached Biology News:The European IVF Monitoring Group celebrates its 10-year anniversary 2UH: Insular evolution: Large and big-footed voles in an outer archipelago 2Preserving sperm vital to saving 'snot otter' salamanders 2
(Date:7/2/2015)... GLASGOW, Scotland , July 2, 2015 ...   Bio-tech procurement company Amici Procurement has ... IOM) to help it move to Office 365. ... Procurement provides small to medium-sized companies in the ... with all aspects of the purchasing cycle to help ...
(Date:7/1/2015)...   Decision Resources Group finds that ... are its oral administration, alternative mechanism of action, ... rheumatologists. Otezla was the first oral therapy specifically ... psoriatic arthritis in the United States ... conventional oral treatments including disease-modifying antirheumatic drugs (DMARDs), ...
(Date:7/1/2015)... , July 1, 2015 Isagenix International, ... has earned three Gold, three Silver, and three Bronze ... gala held in Chicago this ... the premier business awards program in the U.S. ... our company,s strength in developing leaders, cultivating talent, creating ...
(Date:7/1/2015)... , July 1, 2015  UCB, a ... ), a global leader in designing, transforming, and ... Innovation Award in recognition of their close collaboration ... in UCB,s global business services (GBS) finance organization. ... providers and clients that work together effectively to ...
Breaking Biology Technology:Biotech Procurement Company Moves to Office 365 with iomart 2Surveyed Rheumatologists Report That Otezla's Oral Administration is its Single Greatest Advantage Over Currently Available Treatment Options 2Surveyed Rheumatologists Report That Otezla's Oral Administration is its Single Greatest Advantage Over Currently Available Treatment Options 3Isagenix Earns Nine American Business Awards 2Isagenix Earns Nine American Business Awards 3UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 2UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 3UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 4UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 5
... MultiCell,Technologies, Inc. (OTC Bulletin Board: MCET) has moved into new ... May 1, 2008:, -- the new address is: ... RI 02895. -- new phone number is: ... (401) 762-0098, MultiCell Technologies, Inc. is a biopharmaceutical company ...
... to announce that,Grace Ju, Ph.D., research director, RNA Therapeutics ... of Science" by the New Jersey,Association of Biomedical Research ... held May 1 at the Bridgewater Manor., Dr. ... event, which is also,marking the 20th anniversary of NJABR, ...
... Company with 3 divisions has exciting new and unique products; ... contracts to be announced in near future ..., BOCA ... "Company") announced today that their stock is now,up and trading on ... Filings are complete at PinkSheets.com. From this point,Solei will continue on ...
Cached Biology Technology:MultiCell Technologies Relocates Corporate Headquarters 2Roche Research Director Grace Ju Hailed as NJABR 'Outstanding Woman of Science' 2Roche Research Director Grace Ju Hailed as NJABR 'Outstanding Woman of Science' 3Solei Systems, Inc., Announces That the Company Is Now Publicly Traded 2Solei Systems, Inc., Announces That the Company Is Now Publicly Traded 3Solei Systems, Inc., Announces That the Company Is Now Publicly Traded 4
Peroxidase Protective Buffer is a diluent formulated to stabilize the activity of Chemicon horseradish peroxidase (HRP)-antibody conjugates at high conjugate dilution for extended periods....
... Digest Medium (TSB), USP is a highly ... general laboratory use. Due to the inclusion ... medium will support growth of many fastidious ... , Product conforms to United States Pharmacopeia ...
... cells-directed transfection reagent : jetPEI-RGD ... which allows targeted efficient transfection ... cells. Integrins are adhesion molecules ... adhesion processes. Many integrins, including ...
... software is used to predict ... DNA sequence up to 3,200 ... placement of primers and GC ... denaturing gradient gel electrophoresis (DGGE), ...
Biology Products: