HOME >> BIOLOGY >> NEWS
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 branc
'"/>

Contact: John Pastor
352-273-5815
University of Florida
22-Feb-2006


Page: 1 2 3

Related biology news :

1. UK scientists working to help cut ID theft
2. Smithsonian scientists show differing patterns of rainforest biodiversity
3. Weizmann Institute scientists discover a control mechanism for metastasis
4. Cornell scientists link E. coli bacteria to Crohns disease
5. UCLA scientists produce functioning neurons from human embryonic stem cells
6. ASBMB taps 8 scientists and 1 politician for top awards
7. UF, French scientists seek test to detect gene doping in athletes
8. In a first, Einstein scientists discover the dynamics of transcription in living mammalian cells
9. Forsyth scientists gain new understanding of adult stem cell regulation
10. Nanotechnology helps scientists make bendy sensors for hydrogen vehicles
11. After a decades-long search, scientists identify new genetic risk factors for multiple sclerosis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... 30, 2017  On April 6-7, 2017, Sequencing.com will ... hackathon at Microsoft,s headquarters in ... focus on developing health and wellness apps that provide ... the Genome is the first hackathon for personal ... largest companies in the genomics, tech and health industries ...
(Date:3/28/2017)... 2017 The report "Video Surveillance ... Servers, Storage Devices), Software (Video Analytics, VMS), and Service ... Forecast to 2022", published by MarketsandMarkets, the market was ... projected to reach USD 75.64 Billion by 2022, at ... base year considered for the study is 2016 and ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by ... Global Forecast to 2022", published by MarketsandMarkets, the market is expected to be ... 2017 and 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:10/9/2017)... ... 2017 , ... The award-winning American Farmer television series will feature 3 Bar ... Tuesdays at 8:30aET on RFD-TV. , With global population estimates nearing ten billion ... continue to feed a growing nation. At the same time, many of our valuable ...
(Date:10/9/2017)... Texas (PRWEB) , ... October ... ... study published on October 5, 2017, in the medical journal, Epilepsia, Brain ... with the gold standard, video EEG, in detecting generalized tonic-clonic seizures (GTCS) ...
(Date:10/7/2017)...  The 2017 Nobel Prize in Chemistry recognizes ... Joachim Frank and Richard Henderson ... (cryo-EM) have helped to broaden the use ... The winners worked with systems manufactured by Thermo ... resolved, three-dimensional images of protein structures that lead ...
(Date:10/5/2017)... ... ... LabRoots , the leading provider of educational and interactive virtual events ... cancer research with a month-long promotion supporting the advancement of breast cancer research with ... promo code PinkRibbon to get 10 percent off their purchase of every the “Cancer ...
Breaking Biology Technology:
Cached News: