Navigation Links
How Volvox got its groove
Date:2/19/2009

Some algae have been hanging together rather than going it alone much longer than previously thought, according to new research.

Ancestors of Volvox algae made the transition from being a single-celled organism to becoming a multicellular colony at least 200 million years ago, during the Triassic Period.

At that time, Earth was a hot-house world whose inhabitants included tree ferns, dinosaurs and early mammals. Previous estimates had suggested Volvox's ancestors arose only 50 million years ago.

The algae switched to a communal lifestyle in only 35 million years -- "a geological eyeblink," said lead researcher Matthew D. Herron of The University of Arizona in Tucson.

Figuring out how algae made the leap can provide clues to how multicellular organisms such as plants and animals evolved from single cells.

Cooperating successfully is the key, Herron said.

"All the macroscopic organisms we see around us trace back to unicellular ancestors," said Herron, a doctoral candidate in the UA's department of ecology and evolutionary biology. "Each of those groups had to go through a transition like this one.

"We think the early changes in this process were related to cooperation among cells and conflicts among cells -- and finally to the resolution of those conflicts," he said.

The researchers used DNA sequences from about 45 different species of Volvox and related species to reconstruct the group's family tree and determine how long ago the first colonial ancestor arose.

The team's article "Triassic origin and early radiation of multicellular volvocine algae," is in this week's online Early Edition of the Proceedings of the National Academy of Sciences.

Herron's co-authors Jeremiah D. Hackett and Richard E. Michod are members of the UA's department of ecology and evolutionary biology. Co-author Frank O. Aylward was at the UA when the research
'/>"/>

Contact: Mari N. Jensen
mnjensen@email.arizona.edu
520-626-9635
University of Arizona
Source:Eurekalert  

Page: 1 2 3

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How Volvox got its groove
(Date:4/14/2015)... 2015  HYPR Corp. today announced it has ... Alliance tm , an industry consortium transforming online ... share technology and collaborate to deliver open specifications ... secure and private, and easier to use. ... protects sensitive user information and eliminates the dependency ...
(Date:4/13/2015)... According to a recently ... & Opportunities, 2020", the global biometrics market is ... till 2020. The biometrics market is garnering attention ... review of biometric management systems. The constant development ... greater efficiency, are resulting in increasing installation of ...
(Date:4/10/2015)... -- Research and Markets ( http://www.researchandmarkets.com/research/cjk4gb/security ) ... Profiles - NEC" report to their offering. ... continue to supply a range of IT security management ... focus on the development of a Big Data and ... the Asia-Pacific region is a ...
Breaking Biology News(10 mins):HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2NEC Security Competitive Profile 2015 2
... screening the genome of hundreds of thousands of individuals ... more than 100 regions in the genome to the ... Molecular Biology Laboratory (EMBL) and the University of Heidelberg, ... taking these results one step further by pinpointing the ...
... 2013) "Green" chemistry developed at Rice University is at ... waste into fatty acids, and then into fuel. The ... recently announced $25 million United States Department of Agriculture project ... products from switchgrass and forestry residues and from a new ...
... have been a source of great controversyparticularly in Europebut ... scientific evidence about the health and ecological impacts of ... field site dedicated for use in GM crop studies ... interested in pursuing crop biotechnology, according to an article ...
Cached Biology News:Zeroing in on heart disease 2Modified bacteria turn waste into fat for fuel 2Modified bacteria turn waste into fat for fuel 3Fighting GM crop vandalism with a government-protected research site 2
(Date:4/23/2015)... , April 23, 2015 Prospects ...   Report Details   We predict ... value of $101.3 billion in 2015 and will grow at ... in the healthcare sectors around the world and increasing functional ... growth factors in the global healthcare packaging market. ...
(Date:4/23/2015)... 2015  Metanome, Inc., an industry leader in ... changed its name to Diversigen, Inc.  The name ... single commercial source for the myriad of services ... diverse opportunities of the microbiome.  From the wide ... including those that are difficult to handle, such ...
(Date:4/23/2015)... ReliantHeart's HeartAssist5® Ventricular Assist Device (VAD) precisely measure ... in real time, and this data is uploaded to ... Machine to Machine (M2M) communications for the Internet of ... can be monitored by a patient’s clinician 24/7, ... a minimum threshold, the patient can be notified immediately. ...
(Date:4/22/2015)... -- Sangamo BioSciences, Inc. (NASDAQ: SGMO ) today reported ... For the first quarter ended March 31, 2015, ... or $0.08 per share, compared to a net loss ... same period in 2014. As of March 31, 2015, ... interest receivable of $226.1 million. Revenues for ...
Breaking Biology Technology:Healthcare Packaging Market Forecast 2015-2025 2Healthcare Packaging Market Forecast 2015-2025 3Healthcare Packaging Market Forecast 2015-2025 4Healthcare Packaging Market Forecast 2015-2025 5Healthcare Packaging Market Forecast 2015-2025 6Healthcare Packaging Market Forecast 2015-2025 7Healthcare Packaging Market Forecast 2015-2025 8Healthcare Packaging Market Forecast 2015-2025 9Healthcare Packaging Market Forecast 2015-2025 10Metanome Announces Corporate Name Change to Diversigen 2Sangamo BioSciences Reports First Quarter 2015 Financial Results 2Sangamo BioSciences Reports First Quarter 2015 Financial Results 3Sangamo BioSciences Reports First Quarter 2015 Financial Results 4Sangamo BioSciences Reports First Quarter 2015 Financial Results 5Sangamo BioSciences Reports First Quarter 2015 Financial Results 6Sangamo BioSciences Reports First Quarter 2015 Financial Results 7Sangamo BioSciences Reports First Quarter 2015 Financial Results 8
... Hu of China - Source: Getty Images The Olympics ... four years. They're held every year. Though this is still ... as the pervasive growth of the industry becomes part of ... every four years and last two weeks, the biotech Olympics ...
... MADISON, Wis. - Ownership and accountability is the way ... 448-bed community hospital in Madison that provides medical care ... living facility, laboratories and a home health care service. ... Methodist Hospital in 1987, Meriter includes more than 430 ...
... trend three years ago many companies cut their information ... the price of computers dropped, allowing businesses to inexpensively ... grew. Many IT staffers are wary of returning to ... looked to begin working as an outside IT source, ...
Cached Biology Technology:The Olympics: A Biotech Perspective 2The Olympics: A Biotech Perspective 3Meriter IT team builds project performance through internal relationships 2Meriter IT team builds project performance through internal relationships 3Meriter IT team builds project performance through internal relationships 4Expetec expands IT staff services in Wisconsin 2Expetec expands IT staff services in Wisconsin 3
Rabbit polyclonal to GABA A Receptor gamma 2 ( Abpromise for all tested applications). entrezGeneID: 2566 SwissProtID: P18507...
Rabbit polyclonal to VPAC2 ( Abpromise for all tested applications). entrezGeneID: 7434 SwissProtID: P41587...
Anti-GOSR2 Monoclonal AntibodyOther Sub-Family: not assigned-Other Applications: Immunocytochemistry, Immunoprecipitation, Western Blot...
Mouse monoclonal [4A2.2] to SLC6A4 ( Abpromise for all tested applications). entrezGeneID: 6532 SwissProtID: P31645...
Biology Products: