Navigation Links
UF scientists reveal ancient origin of vertebrate skeleton

University of Florida scientists have found that people have an ancient skeleton in their closets - a skeleton personified today by a jawless, eel-like fish.

It turns out lampreys, long thought to have taken a different evolutionary road than almost all other backboned animals, may not be so different after all, especially in terms of the genetics that govern their skeletal development, according to findings to be published online this week in the Proceedings of the National Academy of Sciences.

UF scientists found the same essential protein that builds cartilage in this odd animal - it spends the first five years of its development in the larval stage before it finally morphs into a boneless fish - is none other than collagen. This vital structural molecule is found in all vertebrates with backbones and jaws, including humans.

"It was thought collagen was a relatively recent invention in vertebrate evolution that unites us with reptiles, amphibians, sharks and bony fishes, while the lamprey skeleton was based on quite different proteins," said Martin Cohn, Ph.D., a developmental biologist and associate professor with the UF departments of zoology and anatomy and cell biology. "Knowing that lampreys also use collagen to build their skeletons makes sense. Lampreys and jawed vertebrates inherited the same genetic program for skeletal development from our common ancestor."

Lampreys live today in the Great Lakes and other freshwater bodies that connect to the sea. But they are considered a nuisance, largely because of their unsettling appearance and demeanor - picture a leech longer than your forearm with a rasp-like mouth that flares open at the end of its body.

Still, the lamprey and its cousin, the hagfish, offer insight into the early Cambrian period 540 million years ago, when multicellular animals first began to make shell and other hard body parts. About 40 million years into the process, jawed and jawless vertebrates branch
'"/>

Source:University of Florida


Page: 1 2 3

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. UCSB scientists probe sea floor venting to gain understanding of early life on Earth
3. UAB scientists discover the origin of a mysterious physical force
4. Fox Chase Cancer Center scientists identify immune-system mutation
5. Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.
6. U-M scientists find genes that control growth of common skin cancer
7. UCLA scientists transform HIV into cancer-seeking missile
8. RNA project to create language for scientists worldwide
9. Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
10. To control germs, scientists deploy tiny agents provocateurs
11. Leprosy microbes lead scientists to immune discovery
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: scientists reveal ancient origin vertebrate skeleton

(Date:8/21/2014)... tube connectors, designed by an international standards process, will ... According to an invited review published in the OnlineFirst ... NCP ), the official journal of the American Society ... will greatly reduce the occurrence of misconnection that can ... connectors, which are used to join medical devices, components, ...
(Date:8/21/2014)... from North Carolina State University have developed a novel ... model has applications for creating new materials as well ... "Our new technique allows us to model much larger ... much more quickly," says Nan Li, lead author of ... in NC State,s Department of Materials Science and Engineering. ...
(Date:8/20/2014)... a study of 158 pregnant teenagers in Rochester, NY, ... intentional consumption of ice, cornstarch, vacuum dust, baby powder ... Cornell study. , Moreover, such teens had significantly lower ... eat nonfood substances. , Pregnant teens, regardless of pica, ... lead to iron deficiency and anemia. Low iron in ...
Breaking Biology News(10 mins):New feeding tube connectors will improve patient safety 2Researchers develop models to study polyelectrolytes, including DNA and RNA 2Pica in pregnant teens linked to low iron 2
... WASHINGTON, D.C. (March 7, 2011) -- All our daily activities, ... on signals carried along the body,s vast network of neurons. ... small molecules within nerve cells -- receptors, ion channels, and ... recently, the study of these molecules in real time has ...
... gene that causes Hajdu-Cheney syndrome, a disorder of the ... The study, published in Nature Genetics today, ... highlights the gene as a potential target for treating ... reported cases of Hajdu-Cheney syndrome (HCS), of which severe ...
... separates from Greenland, is the calving due to typical ... called the Scalable, Efficient, and Accurate Community Ice Sheet ... Ridge National Laboratory, aims to use state-of-the-art simulation to ... climate. ORNL computational Earth scientist Kate Evans leads ...
Cached Biology News:Gene responsible for severe osteoporosis disorder discovered 2
(Date:8/20/2014)... 20, 2014 The 6th Annual ... held on October 29-30 in San Francisco, CA. This ... and government researchers and clinicians focused on addressing and ... , In the twelve years since the sequencing of ... been introduced with pharmacogenetic information in the label and ...
(Date:8/20/2014)... SAN JOSE, Calif. , Aug. 20, 2014 ... UCSD highlights the transformative collaboration between the school,s ... (IoT).  As part of the Intel® Software Academic ... between computer sciences and the human body.  ... The study exhibits the work of ...
(Date:8/20/2014)... Cranford, NJ (PRWEB) August 20, 2014 ... solutions, announced today that it has expanded its myPROpad™ ... of the EQ-5D-5L, one of the most widely ... for measuring general health status. The EQ-5D is used ... to generate a measure that can be used to ...
(Date:8/19/2014)... (PRWEB) August 20, 2014 One ... regenerative medicine is an inadequate vascular supply. Nutrient ... and decellularized tissues is critical for successful regeneration ... attempted to mitigate deficiencies in vascularization and promote ... scaffold bioactivity, optimizing scaffold design and architecture, and ...
Breaking Biology Technology:6th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2Intel and University of San Diego Bioengineering Department Release Case Study on Health Sciences Research 2EQ-5D™ Assessment Now Available for iPad 2Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2
... LA JOLLA, Calif., Jan. 13 Burnham ... an assay development and license agreement with ... L.L.C. (J&JPRD). The agreement is Burnham,s ... company.Under this multi-year agreement, Burnham will provide ...
... - GeneNews Limited (TSX: GEN), a company focused ... detection of diseases and personalized health management, today ... 7,473,528 entitled "Method for the detection of Chagas ... protects the Company,s discovery of a blood biomarker-based ...
... Datafarm, Inc. a leading provider of Electronic Document Publishing Solutions and ... announce the appointment of Mr. Daniel F. Orfe to Vice President, ... will oversee Datafarm,s Regulatory Services Group. , ... Marlborough, ...
Cached Biology Technology:Burnham Announces Assay Development and License Agreement with Johnson & Johnson Pharmaceutical Research & Development, L.L.C. 2GeneNews granted U.S. patent for Chagas disease based on Sentinel Principle(TM) platform 2Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 2Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 3Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 4
... of Tracker, plus software to note when the ... a food reward.The Spatial Behavior line is a ... camera, frame grabber, and feature extraction software and ... up to 6 moving animals. Software automatically ...
... Behavior System. Enables replay of a reorded ... parts, and scoring events and duration by button ... Behavior line is a family of instruments all ... feature extraction software and that can track two ...
... fermentation systems for cultivation of microorganisms and ... of bio-pharmaceutical products maximum performance and economy ... and cell fermentation 10 L 1,500 ... ,*Fully automated control system ,*High-quality ...
... technology, SilenceMag is the most efficient ... and easy to use, SilenceMag is ... designed for siRNA delivery, SilenceMag allows ... doses of siRNA.,SilenceMag formulation gives reliable ...
Biology Products: