Navigation Links
Surprising discovery from first large-scale analysis of biodiversity and biogeography of viruses
Date:3/17/2008

Viruses and bacterial viruses (known as phages) are among the most abundant life forms on the planet. Two papers published recently in Nature, March 2 and 12, 2008, analyse the geographical distribution of viral communities in modern organosedimentary structures (sedimentary features, built by the interaction of organisms and their environment) known as microbialites, the living analogues of the oldest fossils on Earth, and come up with some surprising nuggets of information.

Microbialites first appeared in the geological record, 3.5 billion years ago, and for more than 2 billion years they are the main evidence of life on Earth. A team of scientists from US and Singapore used a comparative metagenomics approach to show that phages associated with such structures are very different not only from each other but also from those found in any other ecosystem so far. The teams findings indicate that modern microbialites are endemic remnants of ancient ecosystems.

Dr Ruan Yijun, Senior Group Leader at the Genome Institute of Singapore (GIS), said, Using DNA sequencing technology, we were able to identify unknown viruses in various environments relevant to human health. This collaboration is the first ever large-scale effort to analyse biodiversity and biogeography of viruses in the environments around humans.

We have been interested in this kind of analysis since the SARS (severe acute respiratory syndrome) outbreak in 2002, added Dr Ruan. In pursuit of this interest, we established a virus discovery programme at GIS, resulting in the discovery of abundant viruses in the human gut (PLoS Biology, 2006) and different variants of dengue viruses. Now, with more viral metagenomic data accumulated, we are able to summarise the biodiversity and biogeography on a global scale.

Microbialites are organosedimentary structures accreted by sediment trapping, binding and in situ precipitation due to the growth and metabolic activities of microorganisms.

Stromatolites and thrombolites are morphological types of microbialites classified by their internal mesostructure: layered and clotted, respectively.


'/>"/>

Contact: Cathy Yarbrough
sciencematter@yahoo.com
858-243-1814
Agency for Science, Technology and Research (A*STAR), Singapore
Source:Eurekalert

Related biology news :

1. European Union forests expanding, absorbing carbon at surprisingly high rate: study
2. The surprising story of Charles Darwin and his homeopathic doctor
3. UVA reports surprising findings related to myotonic muscular dystrophy
4. Electrospray droplet research yields surprising, practical results
5. Language of a fly proves surprising
6. Discovery may help defang viruses
7. Stomach stem cell discovery could bring cancer insights
8. Symposium marks 30th anniversary of discovery of third domain of life
9. Emory paleontologist reports discovery of carnivorous dinosaur tracks in Australia
10. Natural product discovery by Cleveland medical researchers blocks tissue destruction
11. Researchers discovery may lead to hypertension treatment
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/5/2017)... 2017 KEY FINDINGS The global ... a CAGR of 25.76% during the forecast period of ... factor for the growth of the stem cell market. ... MARKET INSIGHTS The global stem cell market is ... geography. The stem cell market of the product is ...
(Date:3/30/2017)... , March 30, 2017 The research ... system for three-dimensional (3D) fingerprint identification by adopting ground breaking 3D ... a new realm of speed and accuracy for use in identification, ... an affordable cost. ... ...
(Date:3/27/2017)... 2017  Catholic Health Services (CHS) has been ... (HIMSS) Analytics for achieving Stage 6 on the ... In addition, CHS previously earned a place in ... electronic medical record (EMR). "HIMSS Analytics ... EMR usage in an outpatient setting.  This recognition ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... ... its endogenous context, enabling overexpression experiments and avoiding the use of exogenous expression ... guides is transformative for performing systematic gain-of-function studies. , This complement to ...
(Date:10/11/2017)... and LAGUNA HILLS, Calif. , Oct. ... Cancer Research, London (ICR) and University ... SKY92, SkylineDx,s prognostic tool to risk-stratify patients with multiple myeloma ... MUK nine . The University of Leeds ... partly funded by Myeloma UK, and ICR will perform the ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... company advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that ... Polymerized Liposomal Nanoparticle), a technology developed in collaboration with Children’s Hospital Los ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... innovation and business process optimization firm for the life sciences and healthcare industries, ... conference in San Francisco. , The presentation, “Automating GxP Validation for Agile ...
Breaking Biology Technology: