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:7/31/2014)... supported by the National Science Foundation (NSF), counters ... accelerates atmospheric warming, indicating instead that certain Arctic ... into the atmosphere. , The study, published ... focuses on thermokarst lakes, which occur as permafrost ... melted fresh water, converting what was previously frozen ...
(Date:7/31/2014)... DARIEN, IL Researchers who studied 100 twin pairs have ... function normally on less than six hours of sleep per ... resistance to the effects of sleep deprivation. , Results show ... BHLHE41 gene had an average nightly sleep duration of ... than the non-carrier twin, who slept for about six hours ...
(Date:7/31/2014)... scientists from Spain, France, and the U.S. has ... the oldest definitive member of the tribe Omaliini ... discovery and description were made possible through the ... technique, which allows the detailed study of otherwise ... is described in the journal Annals of ...
Breaking Biology News(10 mins):Certain Arctic lakes store more greenhouse gases than they release 2Study of twins discovers gene mutation linked to short sleep duration 2
... New findings from epidemiology and observational studies show ... unique demographic characteristics suggest the problem may be worse ... Latino population age, we are going to see the ... said Amelie G. Ramirez, Dr.P.H., director of the Institute ...
... , This release is available in French . ... the mechanism behind sexual mate selection has been resolved. According to ... de Montral researchers have discovered a molecular switch that becomes activated ... knows that a potential mate is close-by and healthy enough to ...
... melts into place, snugly fitting to the brain,s surface. ... monitor and control seizures, and to transmit signals from the ... implants have the potential to maximize the contact between electrodes ... They could provide a platform for a range of devices ...
Cached Biology News:Cancer health disparities research highlighted at AACR 101st Annual Meeting 2010 2Cancer health disparities research highlighted at AACR 101st Annual Meeting 2010 3Cancer health disparities research highlighted at AACR 101st Annual Meeting 2010 4Cancer health disparities research highlighted at AACR 101st Annual Meeting 2010 5Cancer health disparities research highlighted at AACR 101st Annual Meeting 2010 6Cancer health disparities research highlighted at AACR 101st Annual Meeting 2010 7Study reveals a mechanism for mate selection 2A brain-recording device that melts into place 2A brain-recording device that melts into place 3
(Date:8/1/2014)... Waterloo, ON (PRWEB) August 01, 2014 ... researchers has led to a better understanding embryonic ... differentiate and reorganize into structurally and functionally distinct ... devastating physical defects. Prof. Todd McDevitt, Melissa ... that biophysical signals interact with biochemical cues to ...
(Date:7/31/2014)... July 31, 2014 Food and ... increasingly searching for food alternatives that offer variety, ... The food ingredient market has numerous players operating ... as Vital Force Technology (VFT). VFT is ... 4,000 energetic patterns, all tested to produce stable, ...
(Date:7/31/2014)... Dallas, Texas (PRWEB) August 01, 2014 ... Global and China Polyurethane Resin Industry” is ... Polyurethane Resin market. The report introduces Polyurethane ... application, and industry chain structure and industry ... analysis, including China’s domestic market as well ...
(Date:7/31/2014)... -- Today BioSpace , the leading life sciences employment and news ... life sciences community in Illinois , Indiana ... Michigan , Minnesota , ... and Wisconsin . BioMidwest is a ... postings on BioSpace originating in this region in 2013. The life sciences ...
Breaking Biology Technology:Study Links Biomechanics and Gene Expression in Stem Cells 2Functional Ingredient Manufacturer – Vital Force Technology Infuses Raw Materials & Ingredients with Subtle Energy Formula 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 3Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 4Midwest Biotech Leaders Featured On BioSpace Map 2
... community organizations to ... proactively get the job done, NEWARK, N.J., Aug. ... non-profit organization to utilize its,Ogiene(TM) FE technology to bring 10,000 mobile ... those families so desperately in need,of biohazard-free housing., Dr. Andy ...
... Product Safety Commission (CPSC) to carry out its mandate with ... toy trains bodes poorly for its ability to oversee the ... a new report released by the Project on Emerging Nanotechnologies ... the CPSC are being used in the Olympic Games in ...
... Fla., Aug. 21 Bioheart, Inc.,(Nasdaq: BHRT ... and,biologics that help monitor, diagnose and treat heart ... $1 million unsecured,loan from Rogers Telecommunications Limited. This ... or Bioheart,s repayment of its loan from BlueCrest,Capital. ...
Cached Biology Technology:BioNeutral Signs Agreement With a Non-profit for Long-Term Removal of Formaldehyde to Save 10,000 Mobile Homes in Louisiana 2Consumer Product Safety Commission not ready for nanotech 2Consumer Product Safety Commission not ready for nanotech 3Bioheart, Inc. Announces Additional Funding Support 2Bioheart, Inc. Announces Additional Funding Support 3Bioheart, Inc. Announces Additional Funding Support 4
... Convenient, easy-to-use kits for arraying ... detection using common lab equipment. DiscoverLight ... analysis of your protein, cell lysate ... format. The kits include specially designed ...
... facilitate the hybridization of DNA or Protein ... x 75mm glass slides. The proprietary design ... for poor flatness, as is often the ... volume chamber (67uL analytical cavity volume) eliminates ...
MAb to Myoglobin Cardiac...
... The SDSaway reagent is a valuable tool ... The presence of SDS in biological ... tightly bound SDS-protein complex, inhibits enzymatic activity ... presents as a contaminant in mass spectrometry ...
Biology Products: