Featured Research

from universities, journals, and other organizations

Tracing Origins Of Critical Step In Animal Evolution: The Development Of Nerves

Date:
August 22, 2008
Source:
University of Queensland
Summary:
Researchers have traced the origins of one of the most important steps in animal evolution -- the development of nerves.

University of Queensland researchers have traced the origins of one of the most important steps in animal evolution – the development of nerves.

Professor Bernie Degnan, from UQ's School of Integrative Biology, together with PhD student Gemma Richards and colleagues from France, have traced the evolution of the nerve cell by looking for pre-cursors in, of all places, the marine sponge.

"Sponges have one of the most ancient lineages and don't have nerve cells," Professor Degnan said.

"So we are pretty confident it was after the sponges split from trunk of the tree of life and sponges went one way and animals developed from the other, that nerves started to form.

"What we found in sponges though were the building blocks for nerves, something we never expected to find."

Professor Degnan said the science involved came from the relatively new area of paleogenomics, which is the study of ancestral genomes to paint a more accurate picture of animal evolution.

"What we have done is try to find the molecular building blocks of nerves, or what may be called the nerve's ancestor the proto-neuron," he said.

"We found sets of these genes in sponges, when we really didn't expect it.

"But what was really cool is we took some of these genes and expressed them in frog and flies and the sponge gene became functional – the sponge gene directed the formation of nerves in these more complex animals.

The research was published recently in the scientific journal Current Biology and stems from work done by Professor Degnan's lab in mapping the entire genome of the sea sponge Amphimedon queenslandica.


Story Source:

The above story is based on materials provided by University of Queensland. Note: Materials may be edited for content and length.


Cite This Page:

University of Queensland. "Tracing Origins Of Critical Step In Animal Evolution: The Development Of Nerves." ScienceDaily. ScienceDaily, 22 August 2008. <www.sciencedaily.com/releases/2008/08/080820163117.htm>.
University of Queensland. (2008, August 22). Tracing Origins Of Critical Step In Animal Evolution: The Development Of Nerves. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2008/08/080820163117.htm
University of Queensland. "Tracing Origins Of Critical Step In Animal Evolution: The Development Of Nerves." ScienceDaily. www.sciencedaily.com/releases/2008/08/080820163117.htm (accessed October 23, 2014).

Share This



More Plants & Animals News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Working Mother DIY: Pumpkin Pom-Pom

Working Mother DIY: Pumpkin Pom-Pom

Working Mother (Oct. 22, 2014) How to make a pumpkin pom-pom. Video provided by Working Mother
Powered by NewsLook.com
San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

Reuters - Light News Video Online (Oct. 22, 2014) The pair of rare white northern rhinos bring hope for their species as only six remain in the world. Elly Park reports. Video provided by Reuters
Powered by NewsLook.com
Raw: Bear Cub Strolls Through Oregon Drug Store

Raw: Bear Cub Strolls Through Oregon Drug Store

AP (Oct. 22, 2014) Shoppers at an Oregon drug store were surprised by a bear cub scurrying down the aisles this past weekend. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Family Pleads for Pet Pig to Stay at Home

Family Pleads for Pet Pig to Stay at Home

AP (Oct. 22, 2014) The Johnson family lost their battle with the Chesterfield County, Virginia Planning Commission to allow Tucker, their pet pig, to stay in their home, but refuse to let the board keep Tucker away. (Oct. 22) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins