HOME >> BIOLOGY >> NEWS
Possible evidence of cell division, differentiation found in oldest known embryo fossils

Blacksburg, Va., October 12, 2006 -- A group of 15 scientists from five countries has discovered evidence of cell differentiation in fossil embryos that are more than 550 million years old. They also report what appear to be cells about to divide. They used x-ray imaging technologies that produce higher resolutions than hospital-CT scans and digitally extracted cells from the embryos of ancient animals that have been preserved in the Doushantuo Formation, a fossil site in South China.

The discovery will be reported in the Oct. 13 issue of Science, in the article, "Cellular and Subcellular Structure of Neoproterozoic Animal Embryos," by James W. Hagadorn of Amherst College, Shuhai Xiao of Virginia Tech, Philip C.J. Donoghue of the University of Bristol, Stefan Bengtson of the Swedish Museum of Natural History, Neil J. Gostling and Maria Pawlowska of Bristol, Elizabeth C. Raff and Rudolf A. Raff of both Indiana University and the University of Sydney, F. Rudolph Turner of Indiana, Yin Chongyu of the Chinese Academy of Geological Sciences, Chuanming Zhou and Xunlai Yuan of the Nanjing Institute of Geology and paleontology, Matthew B. McFeely of Amherst, Marco Stampanoni of Swiss Light Source at the Paul Scherrer Institute, and Kenneth H. Nealson of the University of Southern California, L.A.

"We asked the question Can subcellular or intracellular structures be preserved within these embryos," said Xiao, associate professor of geosciences at Virginia Tech who has been exploring the Doushantuo Formation for many years and whose group reported the discovery of animal embryo fossils from this formation (Nature, 1998).

"Because the fossils are so small, we used microfocus x-ray computed tomography (microCT), scanning electron microscope, and transmission electron microscope facilities at Amherst College, Swiss Light Source at the Paul Scherrer Institute in Switzerland, Virginia Tech, and Nanjing Institute of Geology and Paleontology
'"/>

Contact: Susan Trulove
STrulove@vt.edu
540-231-5646
Virginia Tech
12-Oct-2006


Page: 1 2 3

Related biology news :

1. Possible genetic link to schizophrenia identified
2. Possible birthplace of malignant brain tumors identified
3. Possible cause and potential treatment found for aggressive head and neck cancer
4. Possible brain hormone may unlock mystery of hibernation
5. No evidence that widely prescribed statins protect against prostate cancer
6. Progesterone therapy and preterm birth: More evidence helps identify women who can benefit
7. CU researchers discover evidence of very recent human adaptation
8. Research finds evidence tropical cyclones have climate-control role
9. New evidence of human culture among primates
10. Study advances evidence for receptors role in alcohol pleasure and problems
11. Study provides first genetic evidence of long-lived African presence within Britain

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


(Date:5/21/2020)... , ... May 20, 2020 , ... Law Enforcement has ... danger for all of us. The positions of these men and women put them ... defense for not following rules precisely. Officers have always had to face very high ...
(Date:5/14/2020)... ... May 12, 2020 , ... ... helps Life Science Manufacturers accurately and easily project contracted liabilities with payers, ... Gross-to-Net models by projecting discounts/rebates to Commercial and Government entities, Copay and ...
(Date:5/11/2020)... ... May 11, 2020 , ... Octagos Health, a Houston-based ... implanted cardiac devices. The Octagos software allows healthcare professionals access to cardiac patients’ ... the management of remote transmissions and at the same time provides real-time patient ...
Breaking Biology News(10 mins):
(Date:4/7/2020)... Pa. (PRWEB) , ... April 06, 2020 , ... ... and process solutions for the life sciences industry, has announced the release of ... developing quickly, our top priority is the health and safety of our employees ...
(Date:4/1/2020)... ... March 30, 2020 , ... A joint venture ... (RID), formed earlier this year to bring telehealth to various government agencies, has ... COVID-19. Company officials are currently?awaiting an Emergency Use Authorization (EUA) waiver from the ...
(Date:4/1/2020)... (PRWEB) , ... March 31, 2020 , ... Carterra® Inc., ... for Immunology (LJI), announced today that they will use Carterra’s proprietary LSA™ platform to ... candidates to the clinic as early as this summer. , La Jolla Institute ...
(Date:3/27/2020)... MANHATTAN, Kansas (PRWEB) , ... ... ... LLC proudly announces the opening of its veterinary histopathology laboratory located centrally ... offer partnering clients the ability to work with a highly motivated, independent, ...
Breaking Biology Technology:
Cached News: