Navigation Links
'Living fossil' tree contains genetic imprints of rain forests under climate change
Date:10/30/2008

ANN ARBOR, Mich.---A "living fossil" tree species is helping a University of Michigan researcher understand how tropical forests responded to past climate change and how they may react to global warming in the future.

The research appears in the November issue of the journal Evolution.

Symphonia globulifera is a widespread tropical tree with a history that goes back some 45 million years in Africa, said Christopher Dick, an assistant professor of ecology and evolutionary biology who is lead author on the paper. It is unusual among tropical trees in having a well-studied fossil record, partly because the oil industry uses its distinctive pollen fossils as a stratigraphic tool.

About 15 to 18 million years ago, deposits of fossil pollen suggest, Symphonia suddenly appeared in South America and then in Central America. Unlike kapok, a tropical tree with a similar distribution that Dick also has studied, Symphonia isn't well-suited for traveling across the ocean---its seeds dry out easily and can't tolerate saltwater. So how did Symphonia reach the neotropics? Most likely the seeds hitched rides from Africa on rafts of vegetation, as monkeys did, Dick said. Even whole trunks, which can send out shoots when they reach a suitable resting place, may have made the journey. Because Central and South American had no land connection at the time, Symphonia must have colonized each location separately.

Once Symphonia reached its new home, it spread throughout the neotropical rain forests. By measuring genetic diversity between existing populations, Dick and coworker Myriam Heuertz of the Universit Libre de Bruxelles were able to reconstruct environmental histories of the areas Symphonia colonized.

"For Central America, we see a pattern in Symphonia that also has been found in a number of other species, with highly genetically differentiated populations across the landscape," Dick said. "We think the pattern is t
'/>"/>

Contact: Nancy Ross-Flanigan
rossflan@umich.edu
734-647-1853
University of Michigan
Source:Eurekalert  

Page: 1 2

Related biology news :

1. TB bacterium uses its sugar coat to sweeten its chances of living in lungs
2. NSF funds new Center for the Physics of Living Cells at Illinois
3. Buckyballs have high potential to accumulate in living tissue
4. Living sensor can warn of arsenic pollution
5. Nothing stops an expert in the art of living
6. Simian foamy virus found in several people living and working with monkeys in Asia
7. Living fossils have long- and short-term memory
8. Mouse study: When it comes to living longer, its better to go hungry than go running
9. Worlds oldest living tree discovered in Sweden
10. Novel living system recreates predator-prey interaction
11. Harvard researchers publish MRI images of genes in action in the living brain
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Living fossil' tree contains genetic imprints of rain forests under climate change
(Date:4/15/2014)... in nanoparticle form could help reduce side effects by ... years, scientists have developed nanoparticles that deliver one or ... to design particles that can carry any more than ... have devised a new way to build such nanoparticles, ... different drugs. In a paper published in the ...
(Date:4/15/2014)... cuttlefish, squid and octopus has uncovered details of ... they may help in investigating populations of their ... 10 new parasite species− dicyemid mesozoans −, which ... and octopus). They are the very first ... , "Although dicyemid parasites have been studied ...
(Date:4/14/2014)... swallow, but if you,re over 24 years of age ... cognitive motor performance, according to a new Simon Fraser ... doctoral student, associate professor Mark Blair, Thompson,s thesis supervisor, ... student, deliver the news in a just-published PLOS ... the first social science experiments to rest on big ...
Breaking Biology News(10 mins):Targeting cancer with a triple threat 2Targeting cancer with a triple threat 3Bizarre parasite may provide cuttlefish clues 2Study says we're over the hill at 24 2
... research has found that hurricane activity is ,clustered, rather ... ecosystems and human population. The research was carried ... Queensland Global Change Institute and School of Biological Sciences, ... Fellow) at the University of Exeter,s Exeter Climate Systems ...
... multi-disciplinary 5-year project at the University of Nevada, Reno ... $10 million in funding from the National Institutes of ... manipulate the communication between cells that causes human neurological ... of Medicine, the College of Science and the Department ...
... by researchers at The University of Texas at Austin ... a cure for Alzheimer,s disease and help answer one ... The research, led by Cockrell School of Engineering ... Assistant Professor Jon Pierce-Shimomura, aims to prevent degeneration of ...
Cached Biology News:Clustered hurricanes reduce impact on ecosystems 2$10 million grant supports biological sciences team at University of Nevada, Reno 2$10 million grant supports biological sciences team at University of Nevada, Reno 3Reversing aging 2Reversing aging 3Reversing aging 4
(Date:1/15/2014)... January 15, 2014 This webinar ... on nonclinical and clinical safety assessment in biosimilars. ... guide a path for biosimilar drug development, however ... of biosimilarity with regards to quality, safety and ... of biosimilar drug development and registration, development strategies ...
(Date:1/15/2014)... NC (PRWEB) January 15, 2014 ... an enhancement to its Online Web Portal for Life ... now have the ability to specify the subject matter ... nearly 50 life science sub-domains. This will help reduce ... and scientific fields, and decrease the likelihood of error. ...
(Date:1/14/2014)... Doylestown, PA (PRWEB) January 14, 2014 ... – 11 p.m. , Location: Warrington Country Club, 1360 ... Hepatitis B Foundation, the only national nonprofit organization solely ... improving the quality of life for those affected worldwide, ... 11 at Warrington Country Club in Warrington, Pa. ...
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... initiated coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua ... and marketing proprietary products to serve the wound ... , In late 2012, Alliqua was restructured ... launched the company’s new strategy to become a ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2DTS Improves Efficiency for Life Science Document Translations 2Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... May 4 Environmental Tectonics Corporation,s (NYSE AMEX ... Division announced today the addition of Mr. Ray ... Wyngarden will be responsible for expanding market awareness ... ETC,s other hyperbaric products in the western portion ...
... it has produced a synthetic H1N1 swine flu vaccine, Replikins PanFlu™, ... vaccine based on the same Replikins peptide technology which provided the ... was on its way. , ... London, UK (PRWEB) ...
... YORK and NASSAU, The Bahamas, May 1 Fincor ... Prospero Group (Pink Sheets: PRPG) , a leading company ... the new ACTRx Malaria and Dengue fever treatment. Fincor also ... a majority of ACTRx International Inc., which combines several natural ...
Cached Biology Technology:Environmental Tectonics Corporation Expands BioMedical Systems Division Sales Staff 2Environmental Tectonics Corporation Expands BioMedical Systems Division Sales Staff 3H1N1 Influenza "Swine Flu" Peptide Vaccine Now Available For Testing Worldwide 2Fincor (FINC) Makes a Share Transfer and Enters the Market With ACTRx a New Malaria and Dengue Fever Treatment 2
Mouse polyclonal antibody raised against a partial recombinant WRB. NCBI Entrez Gene ID = 7485...
...
Mouse monoclonal to Casein Kinase 2 beta ( Abpromise for all tested applications). entrezGeneID: 1460 SwissProtID: P13862...
Mouse monoclonal antibody raised against a partial recombinant FAAH. NCBI Entrez Gene ID = FAAH...
Biology Products: