Navigation Links
Genetic sequencing of protein from T. rex bone confirms dinosaurs' link to birds
Date:4/24/2008

Scientists have put more meat on the theory that dinosaurs' closest living relatives are modern-day birds.

Molecular analysis, or genetic sequencing, of a 68-million-year-old Tyrannosaurus rex protein from the dinosaur's femur confirms that T. rex shares a common ancestry with chickens, ostriches, and to a lesser extent, alligators.

The dinosaur protein was wrested from a fossil T. rex femur discovered in 2003 by paleontologist John Horner of the Museum of the Rockies; the bone was found in a fossil-rich stretch of land in Wyoming and Montana.

The new research results, published this week in the journal Science, represent the first use of molecular data to place a non-avian dinosaur in a phylogenetic tree, a "tree of life," that traces the evolution of species.

"These results match predictions made from skeletal anatomy, providing the first molecular evidence for the evolutionary relationships of a non-avian dinosaur," says Science paper co-author Chris Organ, a researcher at Harvard University. "Even though we only had six peptides--just 89 amino acids--from T. rex, we were able to establish these relationships."

"Tests of the peptide sequences in T. rex bone fossils have confirmed that newer methods of molecular systematics agree with more traditional methods of taxonomic classification based on morphology, or shapes," says Paul Filmer, program director in the National Science Foundation (NSF)'s Division of Earth Sciences, which funded the research.

Paper co-author Mary Schweitzer of North Carolina State University (NCSU) and the North Carolina Museum of Natural Sciences first discovered the soft-tissue preservation in the T. rex bone in 2005.

The current paper builds on work reported in Science last year. In that paper, a team headed by John Asara and Lewis Cantley, both of Beth Israel Deaconess Medical Center (BIDMC) and Harvard Medical School (HMS), first captured and sequenced tiny piec
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2

Related biology news :

1. American College of Medical Genetics makes genetic testing recommendations in new policy statement
2. Scientists clarify a mechanism of epigenetic inheritance
3. Genetic variant mimics effect of heart failure medications
4. Researchers discover critical detail of cellular defense against genetic mistakes
5. Concentrating on different aspects of pain leads to breakthrough in migraine genetics
6. Genetic Engineering & Biotechnology News reports on growing use of cell-based assays
7. Largest ever study of genetics of common disease just got bigger
8. A genetic cause for iron deficiency
9. Geneticist Francis Collins named first recipient of Inamori Ethics Prize at Case Western Reserve
10. Genetic variants of USF1 are associated with the increased risk for cardiovascular disease
11. Reflecting on the social implications of human genetics research -- past, present and future
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Genetic sequencing of protein from T. rex bone confirms dinosaurs' link to birds
(Date:9/2/2014)... New research suggests that professional baseball pitchers with poor ... days in a single season because of injury than are ... back and pelvis. , In the study, 347 pitchers were ... tilt in their pelvis as they raised a leg to ... miss at least 30 days cumulative, not consecutive ...
(Date:9/2/2014)... study published in the September issue of ... a novel strategy to diagnose the leading cause ... structural damage has occurred. This advance involves quantifying ... the endothelium of retinal vessels. Using new probes ... the early molecular development of diabetic retinopathy. , ...
(Date:9/2/2014)... Best-selling author Sam Kean stops by Reactions this ... 50-foot super shark that, despite what "Shark Week" may ... about it at http://youtu.be/KhFygIoW_MA . , Kean,s book, ... Love and the History of the World from the ... treatment in a 10-episode video series produced for the ...
Breaking Biology News(10 mins):In pro baseball pitchers, weak core linked to more missed days 2In pro baseball pitchers, weak core linked to more missed days 3Molecular probes permit doctors to detect diabetic retinopathy before vision fails 2
... optogenetics, the researchers are able to target one cell ... to find out exactly what goes wrong in the ... Prof. Dr. Stefan Herlitze (RUB Department for Biology and ... Biological Chemistry . The Bochum team examined a specific ...
... MD FASEB MARC (Minority Access to Research Careers) ... 2011 Society for Leukocyte Biology (SLB) Meeting in Kansas ... are meant to promote the entry of underrepresented minority ... basic science community and to encourage the participation of ...
... - Researchers speaking on the final day of the 6th ... 2011) have focused on the growing interest in the scientific ... have been growing over the past 12 months and are ... Society (IAS) convened working group concentrating its initial efforts on ...
Cached Biology News:Controlling movements with light 2 Researchers present new trends in HIV cure research, call for proactive outreach programs to prevent HIV transmission in injecting drug users, and demand increased commitments to improving maternal and child health 2 Researchers present new trends in HIV cure research, call for proactive outreach programs to prevent HIV transmission in injecting drug users, and demand increased commitments to improving maternal and child health 3 Researchers present new trends in HIV cure research, call for proactive outreach programs to prevent HIV transmission in injecting drug users, and demand increased commitments to improving maternal and child health 4
(Date:9/2/2014)... of what happens on the surface of cells. The ... A group of researchers from Lund University in Sweden ... a large number of vertical nanowires, known as a ... cell and its surroundings takes place through the cell ... the cell together and that largely comprises lipids, built ...
(Date:9/2/2014)... AVENTURA, Fla. , Sept. 2, 2014  Technology ... has announced that its wholly-owned subsidiary Renuell Int,l, Inc. ... National Aeronautics and Space Administration ("NASA") at the Johnson ... See photos: tapplic.com/houstonphotos/ ... stated, "We are very pleased to announce our latest, ...
(Date:9/2/2014)... 2014 /PRNewswire/ - Oncothyreon Inc. (Nasdaq: ONTY ) announced ... Executive Officer, will present at the Rodman & Renshaw 16 ... York on Tuesday, Sept. 9, 2014 at 2:05 ... of the presentation will be accessible by visiting the Oncothyreon ... About Oncothyreon Oncothyreon is ...
(Date:9/2/2014)... , September 2, 2014 Culot ... research and lab management services  BioData, producer ... is pleased to announce the appointment of Louis ... recently served as VP Marketing and Business Development at ... research and clinical applications. Previously, Culot worked ...
Breaking Biology Technology:Nano-forests to reveal secrets of cells 2Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 2Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 3Louis Culot Appointed as BioData's CEO 2
... ... Delay, LEXINGTON, Mass., ... Glenn L. Cooper,MD, its chairman and chief executive officer is postponing his,previously-announced ... of the recent delay in the approval of NEBIDO(R)., Dr. Cooper ...
... Raymond J. De,Hont, Chairman and Chief Executive Officer ... Fybroc business unit has received,an order for approximately $500,000 ... second and third quarters of the Company,s current fiscal ... order Fybroc has received this year from the,Eastern European ...
... Cell Therapeutics, Inc.,(Nasdaq and MTA: CTIC) today announced that ... million, newly issued 15% Convertible,Senior Notes due 2011, with ... warrant to purchase approximately 14.6 million shares of common ... This transaction constitutes a partial exercise of a previously ...
Cached Biology Technology:Indevus Announces Management Changes 2Indevus Announces Management Changes 3Indevus Announces Management Changes 4Met-Pro Corporation's Fybroc Business Unit Receives Equipment Order Totaling Approximately $500,000 2Met-Pro Corporation's Fybroc Business Unit Receives Equipment Order Totaling Approximately $500,000 3Cell Therapeutics, Inc. Announces Issuance of 2011 Convertible Senior Notes and Common Stock Warrants to a Single Institutional Investor 2
... development to targets including proteins and to ... cancer-specific surface antigens. A&Gs service is ... in approximately 40 days (duration may vary ... Phase I: Immunization, test bleed and ...
... Immunogen: Synthetic peptide derived from an ... protein. Specificity: Specific for the ... WNT2B/WNT13 proteins. Recognizes both human WNT13A ... Human Rat (positive controls: mouse WNT2B/WNT13-pCMV-tag2-transfected ...
... Clone/PAD: ZMD.460. Immunogen: Synthetic ... the human C35 protein (chromosome 17 open ... Specificity: Specific for the C35 protein. ... band at ~15 kDa band. Reactivity: ...
...
Biology Products: