Navigation Links
Genome of marine organism tells of humans' unicellular ancestors
Date:2/14/2008

Berkeley -- The newly sequenced genome of a one-celled, planktonic marine organism, reported today (Thursday, Feb. 14) in the journal Nature, is already telling scientists about the evolutionary changes that accompanied the jump from one-celled life forms to multicellular animals like ourselves.

In the Nature paper and a complementary Science paper also released this week, University of California, Berkeley, biologists Nicole King, Daniel Rokhsar and their colleagues present their first draft of the genome of a choanoflagellate (ko AN oh FLA je let) called Monosiga brevicollis, and their first comparisons with the genes of multicellular animals, the so-called metazoans.

The sequencing and analysis was performed by the Department of Energy Joint Genome Institute (JGI) in Walnut Creek, Calif., in collaboration with researchers from UC Berkeley and eight other institutions.

According to King, biologists know almost nothing about these organisms, aside from the fact that they are an important food for krill, which are the main source of food for baleen whales, and that, by consuming large quantities of bacteria, choanoflagellates play a major role in the carbon cycle of the oceans. Yet, because choanoflagellates and animals shared a common ancestor between 600 million and a billion years ago, they hold a key to understanding the origins and evolution of animals.

"Choanoflagellates are the closest living unicellular relatives of animals and, as such, can help us learn about our history and the history of life on Earth, which has been dominated by one-celled organisms," said King, an assistant professor of integrative biology and of molecular and cell biology, and a 2005 MacArthur "genius" Award winner. "They help shed light on the biology and genome content of the unicellular organisms from which we evolved."

One finding confirmed by the sequencing is that choanoflagellates have many genes that, in animals, produce pr
'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. DOE JGI releases a new version of its metagenome data management and analysis system
2. Washington University increases fleet of Roche Genome Sequencer FLX Systems
3. Tomato pathogen genome may offer clues about bacterial evolution at dawn of agriculture
4. DOE JGI releases soybean genome assembly to enable worldwide bioenergy research efforts
5. Moss genome shows how plants invaded the land and learned to survive heat and drought
6. WUSTL researchers spearhead key genome initiative
7. DOE JGI Community Sequencing Program delivers first moss genome
8. BGSU undergraduates to pilot groundbreaking genome project
9. Latest Integrated Microbial Genomes data management system update release
10. Duke scientists map imprinted genes in human genome
11. University of Toronto scientists map entire yeast genome
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Genome of marine organism tells of humans' unicellular ancestors
(Date:10/18/2014)... stress-related psychiatric disorders are associated with increased ... mechanisms underlying this relation are unknown. Understanding ... of targeted preventive strategies and new or ... work is presented at the European College ... international group of researchers from Germany and ...
(Date:10/17/2014)... Rockville, MD – Accurate knowledge regarding Ebola is critical ... current risk of hazardous global outbreak and epidemic. The ... has launched a special issue, Ebola Virus and Public ... with necessary knowledge in this critical societal moment. ... Primer on Ebola for Clinicians . The primer was ...
(Date:10/17/2014)... news release is available in German . ... only a very few drugs. When treating overdoses, doctors are ... is especially difficult if there is a combination of drugs ... playing and accidentally swallows his grandmother,s pills? ETH professor Jean-Christophe ... wanted to find an answer to this question. "The task ...
Breaking Biology News(10 mins):Researchers find why depression and aging linked to increased disease risk 2Emergency aid for overdoses 2Emergency aid for overdoses 3
... plants, animals, and microbes introduced to regions beyond their ... $1.4 trillion dollars . They are responsible for the loss ... uptick in infectious diseases. Not all non-native species pose ... several decades teasing apart the conditions that set the stage ...
... posed to people who work with tiny fibres used in ... Research into the health risks posed by nanofibres used ... has pinpointed the lengths at which these fibres are harmful ... a range of materials including carbon, are about 1,000 times ...
... salt sea without an outlet, lies over 400 meters ... because it increases their buoyancy. "For scientists, however, ... a diachronic view of its climate past," says Prof. ... and Paleontology at the University of Bonn. ...
Cached Biology News:Losing stream in our battle to predict and prevent invasive species 2Losing stream in our battle to predict and prevent invasive species 3Drastic desertification 2Drastic desertification 3
(Date:10/20/2014)... 2014 Local veterinary surgeon, Dr. Tim ... study of donor stem cells for dogs with osteoarthritis. ... and has performed clinical stem cell therapy for 7 ... determine if a single injection of donor stem cells ... reduce pain and inflammation in the treated joints. ...
(Date:10/19/2014)... The Asian Automatic patient billing report ... and forecast of revenue. The Automatic patient billing market ... million by 2018, at a developing CAGR of 7.2% ... of the Asian Automatic patient billing market, to get ... provides a glimpse of the segmentation of this market ...
(Date:10/19/2014)... 2014 According to market research ... WLAN Controllers; Wireless gateways)]- Global Advancements, Forecasts and ... global Outdoor Wi-Fi market with analysis and forecasting ... also identifies the drivers and the restrains for ... opportunities and challenges. , Browse 65 market data ...
(Date:10/18/2014)... The Asia-Pacific hardware encryption display market report defines and ... forecast of revenue. This market was valued $5,154.0 million ... by 2018, at a CAGR of 58.4% from 2013 ... Asia-Pacific hardware encryption market report, to get an idea ... glimpse of the segmentation of the market, and is ...
Breaking Biology Technology:Cascade Veterinary Referral Center Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 2Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 4The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 3
... Scheduled for Thursday, May 1, 2003 at the Midwest ... about addressing the commonchallenges of migrating Microsoft Windows NT(R) ... 2003 family delivers a connected, scalable,reliable platform that has ... solve complex IT infrastructure problems. , , ,"We ...
... the Midwest. Only five of these types of facilities exist ... Terrence R. Dolan, PhD, Director of the Fitchburg Technology Campus. ... factory will be an engine for Wisconsins biotechnology industry. Sources ... list of global clients who are eagerly awaiting its start-up. ...
... any good entrepreneur will tell you that every opportunity is ... weve received about 1,500 applications for financing, performed about 750 ... or facilitated more than a dozen investments (and a couple ... a final reminder of why were doing this in the ...
Cached Biology Technology:Biotech Manufacturing Facility to be Built in Wisconsin 2"For Angels Only...When to say No... 2"For Angels Only...When to say No... 3