Navigation Links
Hard-to-find fish reveals shared developmental toolbox of evolution
Date:1/10/2011

A SCUBA expedition in Australia and New Zealand to find the rare embryos of an unusual shark cousin enabled American and British researchers to confirm new developmental similarities between fish and mammals.

Elephant fish, a relative of sharks, utilize the same genetic process for forming skeletal gill covers that lizards and mammals use to form fingers and toes, researchers at the University of Chicago and the University of Cambridge found. The precise timing of when and where that gene is expressed during embryonic development produces dramatic anatomical differences between elephant fish and their close relatives, the dogfish.

The study, published online January 10th by the Proceedings of the National Academy of Sciences, confirms that organisms separated by hundreds of millions of years of evolution share similar genetic programs for body formation.

"The research highlights how evolution is extremely efficient, taking advantage of preexisting mechanisms, rather than inventing new ones," said Andrew Gillis, PhD, at the University of Cambridge and lead author. "By simply tinkering with the timing of when or where a gene is expressed in an embryo, you can get very different anatomical outcomes in adults."

"You have a common nail that's used for many different pieces of furniture," said Neil Shubin, PhD, Robert R. Bensley Professor of Organismal Biology & Anatomy at the University of Chicago and senior author of the paper. "This esoteric fish with this esoteric anatomical system is showing us something very fundamental about the evolutionary tree: that there's a common process at work among disparate types of organisms."

The holocephalans are a family of fish that share a cartilage-based skeleton with better known animals such as sharks and rays. Another shared feature is the presence of appendages called branchial rays, structures that grow outward from the skeleton's central gill arches. While sharks form
'/>"/>

Contact: Robert Mitchum
robert.mitchum@uchospitals.edu
773-702-6241
University of Chicago Medical Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. A pesky bacterial slime reveals its survival secrets
2. Catfish study reveals multiplicity of species
3. Viral evasion gene reveals new targets for eliminating chronic infections
4. Large-scale study reveals major decline in bumble bees in the US
5. New research reveals unexpected biological pathway in glaucoma
6. Despite damage, membrane protein structure can be seen using new X-ray technology, study reveals
7. Genome of barley disease reveals surprises
8. New research reveals details of microbes extraordinary maintenance and repair system
9. Northern wildfires threaten runaway climate change, study reveals
10. Study reveals new possibility of reversing damage caused by MS
11. Pioneering study reveals UK biodiversity hotspot
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/6/2015)... REDWOOD CITY, Calif. , Aug. 6, 2015 ... (D-Silicon Valley) will visit Crossmatch ™ to ... secure networks and protect data. Crossmatch is a ... solutions whose technologies and expertise are helping federal ... operational efficiency and security.   "The ...
(Date:8/5/2015)... 5, 2015 Transparency Market Research ... Market - Global Industry Analysis, Size, Share, Growth, Trends ... facial recognition is forecast to reach US$ 2,671.8 Mn ... for surveillance systems by civil and government agencies. This ... and terrorist activities across the globe that would elevate ...
(Date:8/3/2015)... SAN JOSE, Calif. , Aug. 3, 2015 /PRNewswire/ ... developer of human interface solutions, today announced that members ... investment community at the Pacific Crest Global Technology Leadership ... Mountain Time. The conference will be held at the ... The presentation may include forward-looking information. ...
Breaking Biology News(10 mins):Rep. Honda to Visit Crossmatch in Redwood City 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 2Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 3Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 4Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 5Facial Recognition Market Expected to Reach US$ 2.67 Bn by 2022, at a CAGR of 9.5% From 2015 - 2022: Transparency Market Research 6
... are increasingly obtaining endangered or threatened plants, often illegally, and ... in the journal Nature by Patrick Shirey and ... University of Notre Dame. According to their research last ... threatened and endangered under the US Endangered Species Act are ...
... Alberta researchers determined that a fossilized dinosaur bone found in ... of dinosaurs ended between 65.5 and 66 million years ago. ... Larry Heaman from the Department of Earth and Atmospheric Sciences, ... 64.8 million years old. That means this particular plant eater ...
... Visionaries in the field of cardiac therapeutics have long looked ... or repaired by using one,s own heart cells. A study ... scientific journal of the American Heart Association, shows that heart ... to rebuild the damaged heart in the laboratory. ...
Cached Biology News:Notre Dame biologists call for regulation of rare plant sales 2Test shows dinosaurs survived mass extinction by 700,000 years 2Stem cells show promise in repairing a child's heart 2
(Date:8/27/2015)... ... August 27, 2015 , ... Capital Edge Consulting , a nationwide consulting ... to announce their ranking as one of the top 5000 companies listed on the ... across the nation. , “It is truly an honor to be recognized as one ...
(Date:8/27/2015)... 27, 2015 /PRNewswire/ - Portage Biotech Inc. ("Portage") ... Biohaven Pharmaceutical Holding Company Limited (Biohaven), announced today ... study of BHV-0223, a glutamate modulating agent. Biohaven ... and recently obtained clearance from the U.S. Food ... testing. Portage holds 54% equity interest in Biohaven, ...
(Date:8/27/2015)... MENLO PARK, Calif. , Aug. 27, 2015 /PRNewswire/ ... company in the emerging field of regenerative medicine, today ... two investor conferences in the month of September.  ... Officer, will present at Rodman & Renshaw,s 17th Annual ... 10:25am ET/7:25am PT at the St. Regis Hotel in ...
(Date:8/27/2015)... -- HUYA Bioscience International (HUYA) today announced the sponsorship of ... HTLV-1, held this week at the University of Tokyo ... is to promote research on HTLV-1 and HTLV-1-associated diseases, ... research related to these fields to advance science, the ... to support this prestigious conference," said Mireille Gillings ...
Breaking Biology Technology:Capital Edge Consulting Makes Inc. 5000 List of America’s Fastest-Growing Private Companies 2Capital Edge Consulting Makes Inc. 5000 List of America’s Fastest-Growing Private Companies 3Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 2Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 3Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 4Asterias Biotherapeutics to Present at Upcoming Investor Conferences 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4
... Sangamo BioSciences, Inc. (Nasdaq: SGMO ) today announced ... year 2011 financial results on Wednesday, February 8, 2012, after ... a conference call at 5:00 p.m. ET, which will be ... conference call, the company will review the financial results and ...
... 1, 2012  Generex Biotechnology Corporation (OTCBB: GNBT.OB) announced ... Inc., has been awarded a Japanese Patent centering ... immunotherapeutic vaccines.  A number of products developed with ... patent helps to secure the novel Antigen Express ...
... The report " Biomarkers Market (Discovery ... & Forecasts (2011   -   2020) " , ... drivers, restraints, and opportunities in North America, Europe, Asia, and ... data tables and in-depth TOC on the   ...
Cached Biology Technology:Sangamo BioSciences Announces Fourth Quarter and Full Year 2011 Conference Call and Webcast 2Generex Announces Patent Award for its Core Vaccine Technologies in Japan 2Generex Announces Patent Award for its Core Vaccine Technologies in Japan 3Generex Announces Patent Award for its Core Vaccine Technologies in Japan 4MarketsandMarkets: Global Biomarkers Market worth $25.79 Billion by 2016 2MarketsandMarkets: Global Biomarkers Market worth $25.79 Billion by 2016 3
... with new technology incorporating the sophisticated ... flexibility, the new Varian NMR System ... available today., ,The Varian NMR System ... and receiver channel, providing pulse sequence ...
...
Homo sapiens inhibin, beta B (activin AB beta polypeptide) Antigen: Recombinant Protein(142~254aa)...
... in your 35mm dish without transferring ... Chamber has separate openings for solution ... fluctuations of the liquid level in ... from entering the chamber. An adjustable ...
Biology Products: