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:12/19/2014)... , Dec. 18, 2014   LaunchKey , the ... the post-password and Internet of Things era, today announced ... The venture round was led by Metamorphic Ventures with ... Venture Partners, VegasTechFund, and others.  LaunchKey has raised $4 ...
(Date:12/17/2014)... 16, 2014 Research and Markets ( http://www.researchandmarkets.com/research/9zq33j/global_chemical ... Chemical Sensor Market 2015-2019" report to their offering. ... One major trend upcoming in this market is the ... sensors help in recording of patient data for quick ...
(Date:12/11/2014)... SALEM, N.C. , Dec. 10, 2014  That blood pressure ... quite a while. Hypertension – the medical term for high ... the early 1800s, and the inflatable cuff that,s used in ... doesn,t, however, mean there,s nothing new about hypertension, its triggers ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4
... new bacterium in an immune-compromised patient, according to a ... belongs to the family Acetobacteraceae and includes bacteria common ... industry, such as vinegar-making. "This is the first ... of the Acetobacteraceae," according to the article. ...
... single atom from the molecular structure of vancomycin aglycon, ... cell wall synthesis, significantly increasing the drug's spectrum of ... common strains of enterococci have become resistant to vancomycin ... This re-engineering effort could help make the drug more ...
... flu is bad enough for healthy people, but the ... weakened immune systems, such as patients on chemotherapy. A ... of Philadelphia will support research to determine how adults ... vulnerable to influenza, and will seek better ways to ...
Cached Biology News:Soil-bound prions that cause CWD remain infectious 2Scientists re-engineer a well-known antibiotic to counter drug resistance 2How can we protect patients with weakened immune systems from influenza? 2How can we protect patients with weakened immune systems from influenza? 3
(Date:1/22/2015)... 22, 2015  Derma Sciences, Inc. (Nasdaq: ... advanced wound care, announces that AMNIOEXCEL® and AMNIOMATRIX®, ... added to the Premier, Inc. Regenerative Skin Grafting ... the AMNIOEXCEL® and AMNIOMATRIX® product lines, which continue ...
(Date:12/24/2014)... NEW YORK , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, ... in critical areas, announced the closing of an underwritten public ... purchase up to an aggregate 3,500,000 shares of common stock, ... per warrant.  The warrants have a per share exercise price ...
(Date:12/24/2014)... 23, 2014 “Preparative & Process ... Flash), Consumables (Columns, Solvents, Buffers, Valves, Guages, Seals), ... Agriculture) - Forecasts to 2019” provides a detailed ... current market trends, and strategies impacting the preparative ...
(Date:12/24/2014)... December 23, 2014 SoundConnect’s ... to introduce cutting edge communication technology, provide continued ... upgrades. This webinar series demonstrates online communication features ... leverage web conferencing’s most innovative and powerful tools. ...
Breaking Biology Technology:Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3
...   Hospitals, health systems to benefit,from ... and other,performance management solutions Elsevier ... products,and services, has struck an exclusive partnership with ... learning solutions for process,improvement. Elsevier will market ...
... carbon, has the potential to make consumer electronic devices ... shrinking scale of electronics, also make graphene difficult to ... In September 2010, a UCLA research team ... and were able to fabricate graphene transistors with unparalleled ...
... 2011 Pharmacyclics, Inc. (Nasdaq: PCYC ) ... agreements with various institutional investors and its CEO for ... in a registered direct offering at $8.85 per share, ... of the offering, before deducting expenses, are expected to ...
Cached Biology Technology:Elsevier Strikes Exclusive eLearning Partnership with The Quality Group 2Elsevier Strikes Exclusive eLearning Partnership with The Quality Group 3Elsevier Strikes Exclusive eLearning Partnership with The Quality Group 4UCLA team reports scalable fabrication of self-aligned graphene transistors, circuits 2Pharmacyclics Announces Results of Registered Direct Offering 2Pharmacyclics Announces Results of Registered Direct Offering 3
... provides a genome-wide microRNA (miRNA) expression profiling ... design, which enable highly sensitive and specific ... standard arrays for mature miRNA of all ... the Sanger miRBase database (Release 8.2). Our ...
... Microarrays designed for immunological studies, vaccine ... the flexible and powerful Paraflo microfluidic ... available as part of our comprehensive ... Custom Probe Content Probe content ...
... Custom peptide microarrays designed for ... serum samples and built on the ... platform. Thousands of customer specified sequences ... Sciences can provide assistance with custom ...
... the first time, you can identify and ... efficiently without interferences. The Agilent Multiple Affinity ... multiple high-abundant proteins from human serum, plasma, ... one device. With this revolutionary system, you ...
Biology Products: