Navigation Links
Coelacanth genome surfaces
Date:4/17/2013

coined by Charles Darwin. But the coelacanth is not a relic of the past brought back to life: it is a species that has survived, reproduced, but changed very little in appearance for millions of years. "It's not a living fossil; it's a living organism," said Alfldi. "It doesn't live in a time bubble; it lives in our world, which is why it's so fascinating to find out that its genes are evolving more slowly than ours."

The coelacanth genome has also allowed scientists to test other long-debated questions. For example, coelacanths possess some features that look oddly similar to those seen only in animals that dwell on land, including "lobed" fins, which resemble the limbs of four-legged land animals (known as tetrapods). Another odd-looking group of fish known as lungfish possesses lobed fins too. It is likely that one of the ancestral lobed-finned fish species gave rise to the first four-legged amphibious creatures to climb out of the water and up on to land, but until now, researchers could not determine which of the two is the more likely candidate.

In addition to sequencing the full genome nearly 3 billion "letters" of DNA from the coelacanth, the researchers also looked at RNA content from coelacanth (both the African and Indonesian species) and from the lungfish. This information allowed them to compare genes in use in the brain, kidneys, liver, spleen and gut of lungfish with gene sets from coelacanth and 20 other vertebrate species. Their results suggested that tetrapods are more closely related to lungfish than to the coelacanth.

However, the coelacanth is still a critical organism to study in order to understand what is often called the water-to-land transition. Lungfish may be more closely related to land animals, but its genome remains inscrutable: at 100 billion letters in length, the lungfish genome is simply too unwieldy for scientists to sequence, assemble, and analyze. The coelacanth's more modest-sized genome (compara
'/>"/>

Contact: Haley Bridger
hbridger@broadinstitute.org
617-714-7968
Broad Institute of MIT and Harvard
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Genome sequencing of the living coelacanth sheds light on the evolution of land vertebrate
2. New coelacanth find rewrites history of the ancient fish
3. Einstein joins the New York Genome Center as 12th institutional founding member
4. Scientists decode genome of painted turtle, revealing clues to extraordinary adaptations
5. Getting under the shell of the turtle genome
6. Peach genome offers insights into breeding strategies for biofuels crops
7. DOE Joint Genome Institute 8th Annual Meeting on March 26-28, 2013
8. ACMG releases report on incidental findings in clinical exome and genome sequencing
9. After the Genome tackles tough questions about medicine, miracles and morality
10. U of T scientists map genome that causes Dutch Elm Disease
11. Eurofins MWG Operon and Queen Mary, University Of London commence genome sequencing analysis of Ash
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/15/2014)... spreading rapidly and to an unexpected extent. The outbreak ... and the virus shows a new disease dynamic in ... this reason, the German National Academy of Sciences Leopoldina, ... and the Union of the German Academies of Sciences ... epidemic today. , In the statement the academies call ...
(Date:10/15/2014)... VILNIUS, Lithuania , Oct. 15, 2014 /PRNewswire/ ... identification technologies, today announced the availability of the ... . VeriLook Surveillance 3.0 provides real-time biometric face ... multiple high-resolution digital surveillance cameras. The new version ... detects and differentiates people from objects while they ...
(Date:10/14/2014)... house fly genome for the first time, revealing robust ... that thrives in pathogen-rich dung piles and garbage heaps. ... Genome Biology , will increase understanding of house ... adapt to resist insecticides, which could lead to novel ... and transmit more than 100 human and animal diseases, ...
Breaking Biology News(10 mins):Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3House fly genome reveals expanded immune system 2
... commonly cultivated cacao plant in the world is revealed ... Researchers have utilised high quality DNA sequences to demonstrate the ... can lead to higher yielding cocoa plants that still produce better ... cacao tree ( Theobroma cacao L. ), but ...
... Plymouth University, and the Universidad Federal da Bahia in ... diversity and density of coral colonies off the coast ... El Nio event of 1997-98, creating an opportunity for ... major environmental incident of this nature can have on ...
... ecology has centered on the role of microbes in ... print in the journal Applied and Environmental Microbiology ... Australia, and collaborators show how changes in the populations ... at ecosystem levels. "Ecological theories developed for ...
Cached Biology News:Genome hints at markers for higher-producing, better-tasting chocolate 2Catastrophic climatic events leave corals facing a decade-long fight for recovery 2
(Date:10/22/2014)... SAN DIEGO and HONG KONG ... an innovative rare disease therapeutics enterprise, announced today that ... joined the company as vice president, research. Dr. McKew ... research, including key leadership positions at the National Institutes ... to its acquisition by Wyeth). Dr. McKew will lead aTyr,s ...
(Date:10/20/2014)... Richardson, Texas (PRWEB) October 20, 2014 ... today announced that a team from Iowa State University ... * design contest. Using a Convey HC-2ex, the team’s ... than 14 times faster than the second place finisher. ... academic world embarked upon the month long challenge, using ...
(Date:10/20/2014)... 20, 2014 , A major ... and the delivery of care has revealed changing trends ... inequalities in the provision of healthcare services across the ... by United European Gastroenterology (UEG), have been announced today ... awareness of the burden of GI disorders across ...
(Date:10/20/2014)... 20, 2014 OncLive® ... Cancer Center at Thomas Jefferson University has joined ... the Strategic Alliance Partnership program, the Sidney Kimmel ... to raise awareness of the Center’s cutting-edge research ... projects. Clinicians and other health care professionals from ...
Breaking Biology Technology:aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3
... Today, the rights to Verus,Pharmaceuticals, pediatric asthma ... for aerosol delivery were acquired by,AstraZeneca. Following ... 2006, this is the second major pharmaceutical ... in the development pipeline. Included in ...
... Sciences Company,s Leadership Team, INDIANAPOLIS, Sept. 24 ... short-term and long-term biomaterials storage,sample management and cold ... sciences leader, joins the company as vice president ... created position, Ball is responsible for the company,s,worldwide ...
... into Sample Analysis Systems-, PHILADELPHIA, Sept. ... nanoscale whole genome imaging and analytic,platforms for ... announced the issuance of a patent for ... analyzer. The patent covers a novel technique ...
Cached Biology Technology:Pediatric Asthma Programs Featuring PARI Pharma's eFlow Acquired by AstraZeneca 2BioStorage Technologies Appoints Lori Ball as Vice President 2BioStorage Technologies Appoints Lori Ball as Vice President 3BioNanomatrix Announces Issuance of Key Nanofluidics Patent Enabling Single Molecule Whole Genome Analysis 2BioNanomatrix Announces Issuance of Key Nanofluidics Patent Enabling Single Molecule Whole Genome Analysis 3
... Highly-purified, endotoxin-free plasmid DNA preparations ... plasmids in quantities from 1mg to ... well as large-scale (100mg-multi-gram) preparations are ... Each preparation is formulated according to ...
... polypeptide hormones which belong to the ... TGF- superfamily is a large group ... many aspects of development, reproductive function ... incude TGF-s, bone morphogenetic proteins, growth ...
... animal systems need to be able to handle ... access ports, as well as interface with telemetry ... and more, particularly with dogs, pigs, and primates. ... delayed starting time, and the computer can be ...
The new Silencer siRNA Starter Kit is perfect for researchers new to RNAi. It provides all of the reagents, protocols, and instructions necessary to get underway with siRNA transfection and ensure su...
Biology Products: