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:1/22/2015)... , Jan. 13, 2015 Technology Showcase, Hall E ... identity authentication solutions, today announced it will showcase its EyeLock ... developed by the Department of Energy,s Oak Ridge National ... Auto Show . EyeLock,s iris identity authentication technology is being ...
(Date:1/22/2015)... Report Issued by Small Cap IR. In 2011, Nilson Report,s ... at merchants on the leading payment cards rose to $135.3 ... and prepaid cards reached 6.54 billion.  Eight million credit card ... in 2012, and credit and debit card fraud resulted in ...
(Date:12/24/2014)... in December 2014, the 1U™ app has helped ... remember their usernames and passwords through replacing the antiquated system ... people who have struggled to remember usernames and passwords, ... on redefining identity, announced today that it is offering the ...
Breaking Biology News(10 mins):EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3
... and international scientists studying iron-overload disorders have made ... have the highest levels of iron in their ... , Individuals who develop hemochromatosis/iron overload absorb an ... ingested. The abnormality affects many people worldwide, is ...
... the innate immune system in mice's brains fights viral ... study in the latest issue of Virology, show that ... preventing the formation of viral RNA and proteins, and ... in the brain. , "There is no magic bullet ...
... leave its patients miserable and debilitated with chronic itching ... disease face possible paralysis or damage to the brain ... there's no effective treatment even though the responsible gene ... can be done to treat a disease that affects ...
Cached Biology News:Surprising findings reported about iron overload 2Surprising findings reported about iron overload 3NYU study reveals how brain's immune system fights viral encephalitis 2Potential treatments for neurofibromatosis 2Potential treatments for neurofibromatosis 3
(Date:1/22/2015)... 2015 Pipette.com has added the ... comprehensive portfolio of Eppendorf products. , The Eppendorf Centrifuge ... Centrifuge 5424/5424 R and receive the following:, ... plus or Eppendorf Reference 2 ,     3 ...
(Date:1/22/2015)... Selexis SA, a serial innovation company with ... used for drug discovery to commercial manufacturing, announced today ... Next-Generation Sequencing (NGS) data packages. The NGS analysis ... ensuring the integrity of the gene, validation of the ...
(Date:1/22/2015)...  Varian Medical Systems (NYSE: VAR ), world leader ... commitment to sustainability with inclusion on a prestigious list of ... healthcare equipment company among the Corporate Knights Global 100 Most ... at Davos, Switzerland . ...
(Date:12/24/2014)... Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... MDT ) has submitted a pre-market approval application ... the use of Medtronic,s SynchroMed ® II implantable ... use with United Therapeutics, Remodulin ® (treprostinil) Injection ...
Breaking Biology Technology:Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2Varian Honored Among World's 100 Most Sustainable Corporations 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4
... Unique Offering Provides Financial & Operational Advantages for Global Life ... ... Nov. 7 Sentry Logistic Solutions today,launched a Foreign Trade ... business. This FTZ Service,fully integrates with Sentry,s current services and ...
... 6 Renovis,Inc. (Nasdaq: RNVS ), a biopharmaceutical ... major medical needs in the areas of,neurological and inflammatory ... September 30, 2007. Revenue for the third quarter ... million and $8.5 million, respectively, compared to $2.2,million and ...
... Pathwork Diagnostics, a,genomics-based diagnostics company focused on oncology, ... has initiated an,investigational study of the Pathwork(TM) Tissue ... to help determine a tumor,s origin so that,tissue-specific ... of the first,institutions in the country to evaluate ...
Cached Biology Technology:Sentry Logistic Solutions Launches Foreign Trade Zone Service 2Sentry Logistic Solutions Launches Foreign Trade Zone Service 3Renovis Reports Third Quarter 2007 Financial Results 2Renovis Reports Third Quarter 2007 Financial Results 3Renovis Reports Third Quarter 2007 Financial Results 4Renovis Reports Third Quarter 2007 Financial Results 5Renovis Reports Third Quarter 2007 Financial Results 6Renovis Reports Third Quarter 2007 Financial Results 7Renovis Reports Third Quarter 2007 Financial Results 8Virginia Commonwealth University to Study Genomics-Based Diagnostic Test: Pathwork Diagnostics' Tissue of Origin Test Designed to Aid in Determination of a Tumor's Origin 2Virginia Commonwealth University to Study Genomics-Based Diagnostic Test: Pathwork Diagnostics' Tissue of Origin Test Designed to Aid in Determination of a Tumor's Origin 3Virginia Commonwealth University to Study Genomics-Based Diagnostic Test: Pathwork Diagnostics' Tissue of Origin Test Designed to Aid in Determination of a Tumor's Origin 4
... Express Cloning Checker Kits provide two ... after transformation without time-consuming plasmid preparation. By ... I, all you need to do is ... bacteria directly from the transformation plates into ...
GRADIENT MAKER, 30 ML, 1 EA. Category: Protein Vertical Instruments....
... Butcher (1998). • The major histocompatibility complex ... the immunology area. There is great interest ... in their function as antigen-presenting molecules. Many ... prospect of tackling biochemical and genetic techniques ...
DALT GRADIENT MAKER,230V, 1 EA. Category: 2D DALT Systems....
Biology Products: