Navigation Links
Discovery of jumping gene cluster tangles tree of life
Date:2/4/2011

Since the days of Darwin, the "tree of life" has been the preeminent metaphor for the process of evolution, reflecting the gradual branching and changing of individual species.

The discovery that a large cluster of genes appears to have jumped directly from one species of fungus to another, however, significantly strengthens the argument that a different metaphor, such as a mosaic, may be more appropriate.

"The fungi are telling us something important about evolution something we didn't know," said Antonis Rokas, assistant professor of biological sciences at Vanderbilt. He and research associate Jason Slot reported their discovery in the Jan. 25 issue of the journal Current Biology.

Rokas and Slot discovered that millions of years ago, a cluster of 23 genes jumped from one strain of mold commonly found on starchy foods like bread and potatoes, Aspergillus, to another strain of mold that lives in herbivore dung and specializes in breaking down plant fibers, Podospora.

The findings came as a major surprise, as there are only a handful of cases in recent evolutionary history where this type of gene transfer between organisms, known as horizontal gene transfer, has been reported in complex cells like those found in plants, animals and fungi.

"Because most people didn't believe that such large gene clusters could be transferred horizontally, they haven't looked for them and they haven't been found," Rokas said.

Rokas and Slot detected the unprecedented gene cluster transfer during a detailed comparison of the entire genomes of nearly 100 species of fungi. The primary goal of their research is to identify the most reliable methods for determining the evolutionary relationships of species of all kinds. In the course of their analysis, they discovered the 23-gene capture.

The jumping gene cluster codes for a toxic compound called sterigmatocystin. Cells produce this type of compound to attack c
'/>"/>

Contact: David F. Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Chemical equator discovery will aid pollution mapping
2. Sirtris review of sirtuin therapeutics for diseases of aging in Nature Reviews Drug Discovery
3. Groundbreaking discovery may lead to stronger antibiotics
4. Discovery of natural compounds that could slow blood vessel growth
5. Nanoscopic screening process to speed drug discovery
6. FSU researchers discovery leads to $1.5 million grant, potential new treatment of liver fibrosis
7. New $11 million center to speed production of new compounds for drug discovery
8. Discovery of giant roaming deep sea protist provides new perspective on animal evolution
9. New discovery may enhance MRI scans, lead to portable MRI machines
10. Kidney function discovery sheds light on genetic complexity of disease
11. Discovery of new gene associated with diabetes risk suggests link with body clock
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Discovery of jumping gene cluster tangles tree of life
(Date:7/29/2014)... in locomotion. Swimming microorganisms, such as bacteria and spermatozoa, ... the viscous forces exerted by the surrounding fluid. ... scientists have found that the direction of propulsion made ... by a viscoelastic fluid. These findings have been published ... the Alternative Energies and Atomic Energy Commission (CEA), in ...
(Date:7/29/2014)... wildfires that have been plaguing the Northern Territories in ... Great Lakes in the U.S. continue on. NASA,s ... Resolution Imaging Spectroradiometer, MODIS, instrument on July 26, 2014. ... outlined in red. Copious amount of smoke are drifting ... havoc for residents of Yellowknife. Fire has caused ...
(Date:7/29/2014)... the University of Kent has shown for the first ... a breakthrough that could have a major impact on ... of Biosciences uncovered the mechanism whereby the physical properties ... actin filaments are ,fine-tuned, to undertake different functions. ... completely stable, providing a framework for the cell, others ...
Breaking Biology News(10 mins):Optimum inertial self-propulsion design for snowman-like nanorobot 2
... GOCE satellite from the Plesetsk cosmodrome in northern Russia had ... due to an anomaly identified in one of the units ... stage (Breeze KM ). The correction of the problem ... perform this operation, it will be necessary to de-mate the ...
... physician-geneticist and leader of the Human Genome Project, has ... the Inamori International Center for Ethics and Excellence at ... and Kyoto Prizes for science, technology, philosophy and the ... ethical leaders. It is presented annually to an individual ...
... de los Alimentos (Institute of Nutrition and Food Technology) ... doing research into the positive effects of Mediterranean diet,s ... is a new research line about pancreatic cancer cells. ... points out that in the study ,Influence of the ...
Cached Biology News:Leader of Human Genome Project honored with the Inamori Ethics Prize 2New studies on the Mediterranean diet confirm its effectiveness for chronic disease prevention 2
(Date:7/29/2014)... (PRWEB) July 30, 2014 ... and collaboration company, is proud to announce the ... management positions in their Boston, Charleston and Atlanta ... to the increased demand for hosted solutions, collaboration ... efficiency and reduce cost. , SoundConnect was founded ...
(Date:7/29/2014)... The advanced optical methods and applications for ... a revolution in the neurosciences were the inspiration behind ... SPIE, the international society for optics and photonics ... of the BRAIN Initiative in the United States, and ... vision for and provide examples of the impact that ...
(Date:7/29/2014)... Cat: Can a particle be separated from its properties? ... , published the results of the first Cheshire Cat ... by Chapman University in Orange, CA, and Vienna University ... cat without a grin," thought Alice in Wonderland, "but ... thing I ever saw in my life!" Alice,s surprise ...
(Date:7/29/2014)... 2014  The Society for Clinical Research Sites ... for the 9 th annual Site Solutions ... Amelia Island , Florida.  The focus on collaboration ... however, the topics and format will allow for ... all stakeholders with a continued focus on site ...
Breaking Biology Technology:SoundConnect Organization and Culture is Evolving 2SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 2SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 3SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 4The quantum Cheshire cat: Scientists separate a particle from its properties 2The quantum Cheshire cat: Scientists separate a particle from its properties 3The quantum Cheshire cat: Scientists separate a particle from its properties 4TransCelerate, Lilly, Pfizer, and FDA Highlight Collaborative Program at the Site Solutions Summit 2TransCelerate, Lilly, Pfizer, and FDA Highlight Collaborative Program at the Site Solutions Summit 3
... energy company, BioPower Systems (BPS), today announced that the ... O,Brien MP, has awarded the company conditional funding support ... Program. The funding will be applied towards ... bioWAVE ocean wave energy system at a grid-connected site ...
... Medical Center researchers could still be close to giving heart ... The "LateTIME" trial was a study of adult ... to have the ability to improve heart function after an ... the attack. Results were released this week ...
... Palatin Technologies, Inc. (NYSE Amex: ... peptide therapeutics for the treatment of diseases with ... announced that Dr. Carl Spana, President and Chief ... Area Partnerships conference on Thursday, December 1, 2011.  ...
Cached Biology Technology:BioPower Systems Awarded $5 Million from Victorian Government 2BioPower Systems Awarded $5 Million from Victorian Government 3Post Heart Attack Recovery Not Aided By Stem Cell Injections, But Trial Demonstrates Promise 2Palatin Technologies to Present at Windhover's Therapeutic Area Partnerships Conference 2
... The Label IT siRNA Tracker Intracellular Localization ... directly label and deliver siRNA, of your ... for in vitro tracking experiments. Subcellular localization ... can be monitored following introduction of the ...
... The Label IT siRNA Tracker Intracellular ... provides a straight forward approach to ... your design, in an efficient yet ... experiments. Subcellular localization and functional inhibition ...
... and reproducible immunoprecipitation (IP) by using a 96 ... than regular IPs, which are problematic with regards ... the agarose bed. The binding of the antibody/antigen ... elution of the immune complex can occur with ...
... The Yeast Oligo Microarray Kit (V2), ... to simultaneously characterize expression of many ... gene activity during important biological processes. ... representing 6,256 known ORFs from the ...
Biology Products: