Navigation Links
Sea smarts: Scientists reconstruct evolutionary history of mollusks
Date:9/15/2011

Seemingly simple animals such as the snail and squid have ransacked the genetic toolkit over the last half billion years to find different ways to build complex brains, nervous systems and shells, according to an international team of researchers, including a neuroscientist with the University of Florida Whitney Laboratory for Marine Bioscience.

Using genomics and computational approaches, the scientists have reconstructed the evolutionary history of the entire phylum Molluscsa, which includes more than 100,000 living species, ranging from giant squid to microscopic marine worm-like creatures.

One of the surprising outcomes of the study, recently published online in the journal Nature, suggests that the formation of a complex brain in mollusks has independently occurred at least four times during the course of evolution a finding that may prove useful to regenerative medicine scientists trying to develop new ways to help people with degenerative brain diseases.

"Nature did many experiments for us over the past 500 million years, using different molecular tools to build complex brains by independently centralizing smaller neuronal structures," said Leonid L. Moroz, Ph.D., a member of the department of neuroscience with the UF College of Medicine. "The octopus, for example, is very intelligent. It can learn by watching, and it has one of the most complicated brains of any animal without a backbone. And it evolved completely independently from us, using different genes, gene regulators and, in part, different neuronal signaling molecules."

By looking at the genomic data collected from the various classes and families of mollusks, the scientists were able to better understand the relationships between aplacophorans, which are worm-like creatures; gastropods, which include slugs and snails; cephalopods, such as octopuses and squids; and a variety of other shell-producing creatures.

Researchers extracted RNA
'/>"/>

Contact: John Pastor
jdpastor@ufl.edu
352-273-5815
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. TUM scientists document aquatic species decline at dams and weirs
2. Scientists concerned about pesticide education funding
3. Scientists utilise breath and sweat to detect trapped humans
4. USC scientists generate first detailed map of human neuroreceptor
5. USC scientists probe connection between sight and touch in the brain
6. Biomedical/health informatics scientists to present cutting-edge science, health IT
7. Scientists offer way to address age-old questions
8. USC scientists identify key protein linked to acute liver failure
9. Scientists make turfgrass safer for animals, deadly for insects
10. Scripps Research scientists pinpoint shape-shifting mechanism critical to protein signaling
11. New cellular surprise may help scientists better understand human mitochondrial diseases
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... Evidence of the environmental effects of moorland burning is ... the subject, with the aim of relieving tensions on ... , The EMBER (Effects of Moorland Burning on the ... burning on moorland, which is practised predominantly to support ... impacts on peat hydrology, peat chemistry and physical properties, ...
(Date:9/30/2014)... captured the popular attention of both children and aquarium ... sold as dehydrated eggs, these tiny brine shrimp readily ... tank of salt water. , Physicists, though, are ... shrimp vertically migrate in large groups in response to ... night and retreating deeper during the day. , Two ...
(Date:9/30/2014)... New England Journal of Medicine reports positive ... drug crizotinib against the subset of lung cancer marked ... study of 50 patients with advanced non-small cell lung ... rate was 72 percent, with 3 complete responses and ... it takes for the disease to resume its growth ...
Breaking Biology News(10 mins):Grouse moor burning causes widespread environmental changes 2Laser-guided sea monkeys show how zooplankton migrations may affect global ocean currents 2NEJM: Crizotinib effective in Phase 1 trial against ROS1 lung cancer 2
... ARBOR, Mich.---A new study of expectant mothers suggests that ... are present in many industrial and consumer products including ... alarming rise in premature births. Researchers at ... that women who deliver prematurely have, on average, up ...
... for a lazy partner by working harder to bring up their ... of parenting, says research by bird biologists at the University of ... to be involved in raising young, but it is very common ... to find out why, for some animals, parents stick together. ...
... is being officially opened today (3 July) by Nobel ... the Lord-Lieutenant of Norfolk. The Genome Analysis Centre ... the science of understanding the genetic makeup of organisms ... knowledge can then be used for developments that include ...
Cached Biology News:Chemicals in common consumer products may play a role in pre-term births 2Battle of the sexes benefits offspring, says research 2New national genome center launched 2New national genome center launched 3
(Date:10/1/2014)... 1, 2014  Discovery Laboratories, Inc. (Nasdaq: DSCO) ... a Phase II Small Business Innovation Research Grant ... the National Institute of Allergy and Infectious Diseases ... to support the development of the Company,s aerosolized ... to mitigate acute and chronic/late-phase radiation-induced lung injury. ...
(Date:10/1/2014)... 01, 2014 As the world takes its ... for doubt that this century would mark the beginning of ... of medicine science. The fact that the world is experiencing ... to the scientific community. Almost half of these chronic conditions ... be prevented with medical care and intervention. While the world ...
(Date:10/1/2014)... September 30, 2014 Award winning ... announces four new-hosted collaboration bundles that combine ... high quality conferencing experiences for low, flat rate ... choose from, businesses have optimized solutions to meet ... include audio only minutes (1K, 5K, 10K ...
(Date:10/1/2014)... October 1, 2014 Industry ... invited to engage around the theme, ,Commercial Opportunities in ...   Elsevier , a world-leading ... services, will host a gathering of some of the ... trends impacting healthcare today and in the future. The ...
Breaking Biology Technology:Discovery Labs Receives SBIR Grant Valued up to $3.0 Million to Support Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 2Discovery Labs Receives SBIR Grant Valued up to $3.0 Million to Support Development of Aerosolized KL4 Surfactant to Address Radiation-Induced Lung Injury 3Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 2Fighting Mortality and Morbidity of Chronic Health Disorders during Open Access Week 3SoundConnect Launches New Audio, Web and Video Bundles 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 3
... April 23 MedQuist Inc. (Nasdaq: ... services, today announces that it has completed the purchase ... Inc., MedQuist,s majority owner, has acquired the stock of ... the combined companies will offer unprecedented opportunities for healthcare ...
... April 23 Moffitt Cancer Center announces steadily growing ... chemotherapy for Non Small Lung Cancer patients.  Each year, more than ... , , ... in cells to predict response to cisplatin-based chemotherapy.   The correlation ...
... April 22 /PRNewswire-FirstCall/ - Dragon Pharmaceutical Inc. ("Dragon Pharma" ... a complaint regarding its proposed merger with Datong Investment Inc ... Circuit for Palm Beach County , State of ... Yanlin Han , a director and Chief Executive Officer ...
Cached Biology Technology:MedQuist Announces Completion of Spheris Transaction 2MedQuist Announces Completion of Spheris Transaction 3Moffitt Cancer Center Announces Growing Interest in Recently Launched Prognostic Test for Non-Small Cell Lung Cancer 2Moffitt Cancer Center Announces Growing Interest in Recently Launched Prognostic Test for Non-Small Cell Lung Cancer 3Moffitt Cancer Center Announces Growing Interest in Recently Launched Prognostic Test for Non-Small Cell Lung Cancer 4Complaint Filed Regarding Proposed Merger 2Complaint Filed Regarding Proposed Merger 3Complaint Filed Regarding Proposed Merger 4