Navigation Links
Family tree of fish yields surprises
Date:7/17/2013

tory worked with the lab of Tom Near, a former postdoctoral scholar at UC Davis now at Yale University, and colleagues at the University of Tennessee, The Field Museum in Chicago, Florida Atlantic University and CUNY Staten Island to construct the family tree. Matt Friedman, a paleontologist at the University of Oxford, England, added fossils that helped set dates for branches of the tree.

The researchers looked at 10 genes in more than 500 fish species representing most of the families of spiny-rayed fish. They used the genetic data to construct a tree, grouping related families together. They also looked at the pace of evolution -- the rate at which new species formed -- in different branches, and across the group as a whole.

The spiny-rayed fish originated about 150 million years ago, separating from more primitive fish, such as lampreys, sharks and sturgeon, and from the ancestors of salmon and trout. Since then, they have spread into every aquatic habitat on Earth.

The tree shows some interesting relationships. For example, tuna are more closely related to seahorses than to swordfish or barracuda. The oddly shaped pufferfishes are related to anglerfish, the only fishes whose bodies are wider than they are deep.

Cichlids, a family that includes about 2,000 species of freshwater fish known for brooding their young in their mouths and a favorite for studies of evolution, are related to the engineer gobies, an obscure family of just two species that live on coral reefs and raise their young in a nest.

Wainwright's special interest is in the evolution of fish jaws. Fish have two sets of jawbones, an outer jaw and "pharyngeal jaws" in the throat that adapted to different functions. In some fish, the lower pharyngeal jaw is fused into a single solid bone that can be used to crush prey such as shellfish.

Biologists had assumed that this fused jaw had evolved once and then spread into different groups of fish. I
'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Merkin Family Foundation to fund next generation of Broad Institute scientists
2. Family history of liver cancer increases risk of developing the disease
3. Starting a family does not encourage parents to eat healthier
4. Discovery of a new family of key mitochondrial proteins for the function and viability of the brain
5. Family values
6. FirstMark Exhibiting and Presenting at the San Diego Academy of Family Physicians 55th Annual Postgraduate Symposium
7. Parkinsons disease gene identified with help of Mennonite family: UBC-VCH research
8. Helping family is key for social birds
9. Millipede family added to Australian fauna
10. CEVA, Rubidium Partner to Deliver Speech Processing Solutions based on the CEVA-TeakLite Family of DSPs
11. Bloomberg School receives $28 million for family planning advocacy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... , July 2, 2014  Unisys Corporation,s (NYSE: ... , Unisys Nederland N.V., today announced that it has been ... implement and manage a new Basic Provision Biometrics solution for ... Unisys won the contract with a solution based on ... software. The term of the contract is up to seven ...
(Date:7/10/2014)... , July 3, 2014 ... Market by Type (Swipe And Area), Material (Optical Prism, ... Healthcare, Commercial Security and Banking & Finance), and Geography ... published by MarketsandMarkets, the global Fingerprint Sensors Market is ... a high CAGR of 16.8% from 2014 to 2020. ...
(Date:7/10/2014)... , July 7, 2014 ... Market Research "Electronic Access Control Systems Market Global Forecast, ... 2019," the global Electronic Access Control systems market was ... expected to grow at a CAGR of 12.6% from ... USD 31,187.8 million in 2019. Browse the ...
Breaking Biology News(10 mins):Unisys Delivers New Basic Provision Biometrics Solution to Dutch Custodial Institutions Service 2Unisys Delivers New Basic Provision Biometrics Solution to Dutch Custodial Institutions Service 3Fingerprint Sensors Market worth $14.35 Billion by 2020 2Fingerprint Sensors Market worth $14.35 Billion by 2020 3Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 2Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 3Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 4Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 5
... WEST LAFAYETTE, Ind. - Honeybee populations have been in ... have identified one of the factors that cause bee ... dead in and around hives from several apiaries over ... insecticides, which are commonly used to coat corn and ...
... University of Illinois researchers have shown that by ... of metal nanoantennas, these nano-scale structures allow for ... particles. "Nanoantennas are extremely popular right ... optical fields in small areas," explained Kimani Toussaint, ...
... Calif. Scientists have long seen evidence of social behavior among ... the sea. Dolphins frolic together, lions live in packs, and ... the insects. And, right under our feet, it appears that ... the soil. Until recently, it was unknown how the worms ...
Cached Biology News:Researchers: Honeybee deaths linked to seed insecticide exposure 2Researchers: Honeybee deaths linked to seed insecticide exposure 3Optical nanoantennas enable efficient multipurpose particle manipulation 2Worm seeks worm: Caltech researchers find chemical cues driving aggregation in nematodes 2Worm seeks worm: Caltech researchers find chemical cues driving aggregation in nematodes 3
(Date:7/11/2014)... July 11, 2014 /PRNewswire-iReach/ -- Maxim Peptide, a website ... are used solely in scientific experiments, is currently celebrating ... in business, Maxim Peptide, which was created by the ... new and updated website that now features a special ... been updated with fascinating articles about peptide research, including ...
(Date:7/11/2014)... Research ( http://www.bccresearch.com ) reveals in its new report, ... MARKETS , the global market for digital polymerase chain ... This is estimated to grow to $490 billion in ... of 28.6%. , New digital PCR technology has created ... broader PCR field. The opportunities presented by this technology ...
(Date:7/11/2014)... 11, 2014  Researchers have pioneered a revolutionary ... new technology, called Virtual Finger, allows scientists to ... neurons and synapses using the flat surface of ... 3D imaging studies orders of magnitude more efficient, ... level across many areas of experimental biology. The ...
(Date:7/10/2014)... 2014 Product and process impurities ... abundance and are often “lost in the noise,” ... Join presenters Dr. Rowel Tobias, Senior Scientist, Protein ... Head of Quality at Nanotherapeutics, Inc., to lear ... speed detection and quantitation while achieving the required ...
Breaking Biology Technology:Maxim Peptide Celebrates Second Anniversary Online with an Updated Website and Special Deals Section 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 3Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 2Virtual Finger Enables Scientists To Navigate And Analyze 3D Images Of Complex Biological Structures 3Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2
... Inc. (Nasdaq: ADLS ), a biopharmaceutical company ... drugs in the,therapeutic areas of infection, cancer and ... third quarter ended September 30,2007. (Logo: ... three months ended September 30, 2007 was $5.8,million ...
... 14 Micromet, Inc.,(Nasdaq: MITI ) ("Micromet" ... antibodies for the treatment of cancer,inflammation and autoimmune ... the Company appointed Joseph P. Slattery as a ... audit committee. The appointment will be,effective as of ...
... Results and Business Update - ... a.m. Eastern Time -, OAKLAND, Calif., Nov. 14 ... of mechanical circulatory,support systems, will report its third quarter 2007 ... business update in a,teleconference at 8:30 a.m. Pacific / 11:30 ...
Cached Biology Technology:Advanced Life Sciences Announces Third Quarter 2007 Financial Results 2Advanced Life Sciences Announces Third Quarter 2007 Financial Results 3Advanced Life Sciences Announces Third Quarter 2007 Financial Results 4Advanced Life Sciences Announces Third Quarter 2007 Financial Results 5Advanced Life Sciences Announces Third Quarter 2007 Financial Results 6Advanced Life Sciences Announces Third Quarter 2007 Financial Results 7Advanced Life Sciences Announces Third Quarter 2007 Financial Results 8Advanced Life Sciences Announces Third Quarter 2007 Financial Results 9Micromet, Inc. Elects Joseph P. Slattery to Board of Directors 2Micromet, Inc. Elects Joseph P. Slattery to Board of Directors 3Micromet, Inc. Elects Joseph P. Slattery to Board of Directors 4
Taq DNA Polymerase (T. aquaticus), 250 units. For PCR and other procedures requiring DNA polymerase activity at elevated temperatures. Category: Nucleotides & Enzymes & Biochemicals, Modifying Enzyme...
... • Enzyme concentration - 5 units/µL ... in higher yields ,• Leaves an ... thermostable DNA polymerase which exhibits very high ... biology applications. To ensure the quality of ...
Recombinant DNA polymerase from Thermus aquaticus expressed in E. coli; 5 units/L; 1 tube of 1, 000 units enzyme/tube w/Buffer II and MgCl2...
... • Enzyme concentration - 5 units/µL ,• ... higher yields ,• Leaves an 'A' overhang ... polymerase which exhibits very high activity in ... To ensure the quality of the enzyme, ...
Biology Products: