Navigation Links
100-million-year-old mistake provides snapshot of evolution
Date:10/18/2010

Research by University of Leeds plant scientists has uncovered a snapshot of evolution in progress, by tracing how a gene mutation over 100 million years ago led flowers to make male and female parts in different ways.

The findings published this week in the Proceedings of the National Academy of Sciences (PNAS) Online Early Edition provide a perfect example of how diversity stems from such genetic 'mistakes'. The research also opens the door to further investigation into how plants make flowers the origins of the seeds and fruits that we eat.

In a number of plants, the gene involved in making male and female organs has duplicated to create two, very similar, copies. In rockcress (Arabidopsis), one copy still makes male and female parts, but the other copy has taken on a completely new role: it makes seed pods shatter open. In snapdragons (Antirrhinum), both genes are still linked to sex organs, but one copy makes mainly female parts, while still retaining a small role in male organs but the other copy can only make male.

"Snapdragons are on the cusp of splitting the job of making male and female organs between these two genes, a key moment in the evolutionary process," says lead researcher Professor of Plant Development, Brendan Davies, from Leeds' Faculty of Biological Sciences. "More genes with different roles gives an organism added complexity and opens the door to diversification and the creation of new species."

By tracing back through the evolutionary 'tree' for flowering plants, the researchers calculate the gene duplication took place around 120 million years ago. But the mutation which separates how snapdragons and rock cress use this extra gene happened around 20 million years later.

The researchers have discovered that the different behaviour of the gene in each plant is linked to one amino acid. Although the genes look very similar, the proteins they encode don't always have this amino
'/>"/>

Contact: Brendan Davies
b.h.davies@leeds.ac.uk
44-113-343-3123
University of Leeds
Source:Eurekalert

Page: 1 2

Related biology news :

1. A case of mistaken dino-identity
2. Ancient geologic escape hatches mistaken for tube worms
3. Is 80-year-old mistake leading to first species to be fished to extinction?
4. Paleozoic sediment curve provides new tool for tracking sea-floor sediment movements
5. Field Museum provides gold standard for mammal survey
6. Study provides insight on a common heart rhythm disorder
7. Digital zebrafish embryo provides the first complete developmental blueprint of a vertebrate
8. Brain structure provides key to unraveling function of bizarre dinosaur crests
9. MU brain imaging center provides research for autism, schizophrenia and Parkinsons disease
10. Supercomputer provides massive computational boost to biomedical research at TGen
11. Innovative surgery by MSU veterinarian provides new lease on life to dogs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2015)... --  NexID Biometrics LLC, whose spoof-mitigation technology boosts ... the beginning of shipments of version 2.0 of its ... based in Potsdam, N.Y. , is ... began here today at the Walter E. Washington Convention ... SDK boosts the accuracy rate range to 96.5 to ...
(Date:3/23/2015)...  In the 2014 fiscal year, irs.gov recorded over ... figure accounts for a fraction of the estimated losses ... exceeds $11 billion globally. The polygraph has traditionally been ... occurred. Investor Mark Saint Juste along with ... partnered to administer the test in a new ...
(Date:3/20/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... the growing mobile commerce market, announces its biometric payment ... products featured in 2015 "I Want That" International CES ... on the DIY Network.   DIY,s "I ... , site of the 2015 International CES for a ...
Breaking Biology News(10 mins):NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2Polygraph Test Now Used to Protect Investors From Fraud 2Polygraph Test Now Used to Protect Investors From Fraud 3NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 2NXT-ID's Wocket Biometric Smart Wallet to Air on "I Want That" International CES Special 3
... of cells perform a feat that still amazes researchers with ... other. The process is called mitosis, and an inability to ... Little is known about the biochemical processes that ... and Technion-Israel Institute of Technology in Haifa, Israel, have discovered ...
... be the worst enemy for our waistlines, according to researchers ... They found that study subjects on strict diet and exercise ... they eat more on weekends than during the week. The ... the journal Obesity . Past research had confirmed ...
... recycling more, and going green be easier if ... the question a team of Canadian industry consultants ... in a forthcoming issue of the International ... Inderscience Publishers. The researchers recruited twenty willing ...
Cached Biology News:Death, division or cancer? Newly discovered checkpoint process holds the line in cell division 2Death, division or cancer? Newly discovered checkpoint process holds the line in cell division 3Weekends slow weight loss, researchers find 2Weekends slow weight loss, researchers find 3Shrinking carbon footprints 2Shrinking carbon footprints 3
(Date:3/25/2015)... - SQI Diagnostics Inc. ("SQI" or the "Company") (TSX-V: SQD; ... discussions with certain shareholders representing approximately 45% of the ... with certain matters including the appointment of auditors at ... 26, 2015 (the "Meeting") it intends to adjourn the ... place when the Meeting reconvenes. The Meeting will be ...
(Date:3/25/2015)... IL (PRWEB) March 25, 2015 ... Symmetry® Top-Loading Balances and Analytical Balances to get ... expanded line of weighing balances from the trusted ... Toploading Balances increase your efficiency by providing ... variety of samples. Weighing modes include parts counting, ...
(Date:3/25/2015)... March 25, 2015  Point-of-Care Partners, a leading ... firm, has launched the ePrescribing State Law Capsule ... of ePrescribing regulatory requirements in all 50 states ... landscape continues to change rapidly, so we have ... industry, and ultimately patients, need," said Tony ...
(Date:3/25/2015)... HAGUE, Netherlands , March 25, 2015  EndoStim ... for chronic gastro-esophageal reflux disease (GERD) in the March ... Surgery . 2015; 157(3):556-567 ], establishing the long term ... The study included 25 patients with severe GERD ... prescribed daily proton pump inhibitor (PPI) medication for an ...
Breaking Biology Technology:SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 2SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 3SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 4SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 5New Economical Top-Loading and Analytical Symmetry Balances from Cole-Parmer 2Point-of-Care Partners Launches the ePrescribing State Law Capsule 2EndoStim LES Stimulation therapy demonstrates long term safety and efficacy results in treating reflux patients 2EndoStim LES Stimulation therapy demonstrates long term safety and efficacy results in treating reflux patients 3
... Based on Company,s, microRNA Technology, Developed by Columbia University Medical Center, ... Approved for Clinical use Acquires CLIA-certified lab to Expedite Commercialization of its ... microRNA-based Tests, Expands Pipeline With Three Additional microRNA-based ... Development, ...
... Calif., Aug. 18 VNUS(R) Medical,Technologies, Inc. (Nasdaq: ... and,revises its full year 2008 guidance. The Company ... and certain balance sheet accounts,to record additional expenses ... in prior periods since the adoption of Statement,of ...
... BeaconEquity.com announces the,availability of Trade Alerts on stocks making ... trading notes for free by visiting:, http://www.BeaconEquity.com/m , Today,s ... Pfizer Inc.,(NYSE: PFE ), Amgen Inc. (Nasdaq: AMGN ... BIIB ) and Gilead Sciences Inc. (Nasdaq: GILD ...
Cached Biology Technology:Rosetta Genomics Reports Second Quarter 2008 Financial Results 2Rosetta Genomics Reports Second Quarter 2008 Financial Results 3Rosetta Genomics Reports Second Quarter 2008 Financial Results 4Rosetta Genomics Reports Second Quarter 2008 Financial Results 5Rosetta Genomics Reports Second Quarter 2008 Financial Results 6Rosetta Genomics Reports Second Quarter 2008 Financial Results 7Rosetta Genomics Reports Second Quarter 2008 Financial Results 8Rosetta Genomics Reports Second Quarter 2008 Financial Results 9Rosetta Genomics Reports Second Quarter 2008 Financial Results 10Rosetta Genomics Reports Second Quarter 2008 Financial Results 11Rosetta Genomics Reports Second Quarter 2008 Financial Results 12VNUS Corrects Second Quarter 2008 Results and Revises Full Year 2008 Guidance 2VNUS Corrects Second Quarter 2008 Results and Revises Full Year 2008 Guidance 3VNUS Corrects Second Quarter 2008 Results and Revises Full Year 2008 Guidance 4BeaconEquity.com Issues Trade Alerts on Biotechnology Stocks: ELN, PFE, AMGN, DNA, BIIB, GILD 2BeaconEquity.com Issues Trade Alerts on Biotechnology Stocks: ELN, PFE, AMGN, DNA, BIIB, GILD 3
... 4300 System features Saga GT , is ... automates electrophoresis, lane finding, location of standards, ... ,Saga GT is second generation software ... initially developed at the University of Washington ...
Request Info...
We offer solid and solution phase peptide synthesis including a whole range of modifications. Please send the details of your peptide synthesis need to info@rpeptide.com...
Request Info...
Biology Products: