HOME >> BIOLOGY >> NEWS
Building a tree of life needs less 'wood'

Building a "tree of life" for all the species on the planet may be easier than first thought, according to a study by UC Davis researchers published in the journal Science Nov. 12.

A tree of life shows how living things have evolved since the origins of life billions of years ago, grouping related organisms on the same branch. Such trees provide an organizing framework for biology. They can be used for predicting the properties of poorly known species and are powerful tools for tasks such as drug discovery, said Michael Sanderson, professor of evolution and ecology at UC Davis and senior author on the paper.

Comparing protein and DNA sequences is a powerful tool for creating trees, because large amounts of data can be generated quite easily. But existing databases contain big gaps, because some organisms have been studied very heavily while many others are represented by single entries or not at all.

Postdoctoral researcher Amy Driskell and colleagues from Sanderson's laboratory analyzed over 300,000 protein and DNA sequences deposited by scientists in the GenBank and Swiss-Prot public databases. They found that even though there were big gaps in the data, with many groups of organisms represented by a single sequence, it was still possible to construct useful trees starting from samples of 16,000 green plants and 7,500 plants and animals.

"It's pretty surprising that you can draw conclusions from such a small amount of information, compared to how much there would be if the databases contained a better sample of biodiversity," Sanderson said.

Researchers can now take the same approach and add more information from sequence databases, increasing the resolution of phylogenetic trees, he said.


'"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
16-Nov-2004


Page: 1

Related biology news :

1. Building green made easier with new roadmap
2. Protein folding: Building a strong foundation
3. Building a hand-held lab-on-a-chip to simplify blood tests
4. Building a better mouse model of lung cancer: FHIT counts
5. Whats really making you sick? Plant pathologists offer the science behind Sick Building Syndrome
6. Building a human kinase gene repository
7. Nanowaste needs attention of EPA, industry and investors
8. Who needs environmental monitoring?
9. Cancer cells reprogram energy needs to grow and spread, study suggests
10. US needs to plan for climate change-induced summer droughts
11. Public shares views on environmental, health and safety research needs for nanoscale materials

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/21/2020)... (PRWEB) , ... August 19, 2020 , ... ... Salimetrics LLC and SalivaBio LLC, businesses dedicated to Salivary Bioscience for more than ... the recently published book by Springer, " Salivary Bioscience: Foundations of Interdisciplinary Saliva ...
(Date:8/21/2020)... ... 2020 , ... NDA Partners Chairman Carl Peck, MD ... expertise in clinical trial planning and feasibility, regulatory inspection readiness, and clinical investigator ... career, Mr. Movahhed has helped design and manage oncology, neurology, cardiovascular, and anti-infective ...
(Date:8/12/2020)... ... 12, 2020 , ... Mosio recently announced its newly updated ... agencies of all sizes. With a focus on tracking symptoms and monitoring outbreaks ... care, Mosio helps public health departments automate communications and provide more personalized care ...
Breaking Biology News(10 mins):
(Date:7/18/2020)... ... July 16, 2020 , ... After research model surgery and catheter implantation, ... surgery is only the beginning of a successful study, while protecting and accessing the ... Gien, Global Head of Surgery from Envigo in a live webinar ...
(Date:7/18/2020)... TORONTO (PRWEB) , ... July 17, 2020 , ... ... and global consulting firm for the life sciences and food industries, is pleased ... new Director of Clinical Research – Business Development. , Charles is an accomplished ...
(Date:7/10/2020)... KONG (PRWEB) , ... July 09, 2020 , ... ... compound called 1-phenyl-2-thiourea (PTU) is commonly used to suppress pigment formation in zebrafish ... the PolyU research team led by Dr MA has been using the zebrafish ...
(Date:7/7/2020)... , ... July 06, 2020 , ... ... Awards. Entries from Roche, Eli Lilly, Bristol-Myers Squibb, the University of Chicago, Massachusetts ... Bio-IT World has hosted an elite awards program, highlighting outstanding examples of how ...
Breaking Biology Technology:
Cached News: