Navigation Links
Using DNA, scientists hunt for the roots of the modern potato
Date:1/29/2008

to specimens. She requested hole-punch sized samples of dried leaf tissue from appropriate specimens be sent to Madison for study, eventually ending up with material from 64 potato plants grown between 1700 and 1910.

"Some of these samples were over 300 years old and not ideally preserved," says Spooner, a professor of horticulture and USDA researcher who is the paper's corresponding author. "It took considerable innovation for Mercedes to work out the correct technique to get DNA from them."

After successfully extracting DNA from 49 samples, Ames analyzed each using a DNA marker that distinguishes between upland Andean and lowland Chilean potato types. The result is a biochemical record of ancestry, which Spooner says adds hard evidence to a debate often premised on guesswork.

"The problem with these two theories is that they rely on inferences based on the morphology of old plant samples, as well as inferences based on historical records about day-length adaptation, shipping routes, and the role of the late blight epidemic," he says. "Our work is the first direct evidence-as opposed to the inferential evidence used in prior studies-on the origin of the European potato because the herbarium specimens we used are like fossils."

Spooner notes that this type of analysis could help set the record straight for many other crop species. "Potato is one of the prominent stories in crop evolution books," says Spooner. "Because of Mercedes's work, they're going to have to rewrite the textbooks."


'/>"/>

Contact: David Spooner
david.spooner@ars.usda.gov
608-890-0309
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2

Related biology news :

1. U of M begins nations first clinical trial using T-reg cells from cord blood in leukemia treatment
2. Fever causing headaches for Aussie parents
3. Using evolution, UW team creates a template for many new therapeutic agents
4. Using green chemistry to deliver cutting-edge drugs
5. IGERT fellows to design biodevices using flexible electronics
6. Prediction of RNA pseudoknots using heuristic modeling with mapping and sequential folding
7. Computer program traces ancestry using anonymous DNA samples
8. Using nanotubes to detect and repair cracks in aircraft wings, other structures
9. Book on weeds and invasive plants discusses how to manage them using ecological approaches
10. Study shows housing development on the rise near national forests
11. Rare cancer-causing syndrome found, for the first time, in Singapore
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) a biometric ... recent success of the Wocket™ smart wallet at CES 2015 in ... named as one of the "11 Hot Products at CES" in a ... CES So Far" by Newseveryday.com and "The top 10 gadgets from CES ...
(Date:1/22/2015)... MUNICH , January 22, 2015 ... its tenth year  The European Patent Office to present ... Two British nominations to be featured: Christofer Toumazou ... week featuring former finalists and winners of the Award   ...
(Date:1/22/2015)... Infinisource has launched its new NXG series of time clocks ... a higher standard for collecting attendance and labor data and ... installation, touch screen interface and seamless connection to cloud-based iSolved, ... solution for the small to mid-size employer. The ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 3Infinisource's NXG series sets new time clock standard 2
... The Federal Bureau of Investigation (FBI) has awarded Lockheed ... million contract to continue managing the FBI Criminal Justice ... The contract covers the conversion of paper fingerprint, palm ... the FBI. , , Records processed through ...
... Kornberg Associates | Architects ( www.kornberg.com ) ... a new Cognitive & Neurobiological Imaging Center. Ken Kornberg, ... worked with Stanford University since 1980 and has ... which is the two-story, 32,000 square-foot office building for the ...
... NEW YORK, July 7 Reportlinker.com just added a ... , World Solid-State, Fiber, Gas and Dye ... http://www.reportlinker.com/p0119491/World-Solid-State-FiberGas-and-Dye-Lasers-Market.html?utm_source=PRNWire&utm_medium=PR&utm_campaign=PRNWire ... markets for Solid-State, Fiber, Gas and Dye Lasers in ...
Cached Biology News:Federal Bureau of Investigation Awards Lockheed Martin Biometric Card Scanning Service Contract 2Kornberg Associates Architects Selected to Develop Design for New Stanford University Imaging Center 2New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 2New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 3New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 4New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 5New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 6New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 7New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 8New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 9New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 10New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 11New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 12New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 13New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 14New Report Just Published: World Solid-State, Fiber, Gas and Dye Lasers Market Report 15
(Date:1/22/2015)... Selexis SA, a serial innovation company with ... used for drug discovery to commercial manufacturing, announced today ... Next-Generation Sequencing (NGS) data packages. The NGS analysis ... ensuring the integrity of the gene, validation of the ...
(Date:1/22/2015)... 22, 2015   Cypher Genomics, Inc., the ... SQNM ), the leading molecular diagnostics ... generation noninvasive prenatal tests (NIPT). Through this agreement, ... Mantis™, to advance analysis of clinically-relevant fetal sub-chromosomal ...
(Date:1/22/2015)... 2015  Derma Sciences, Inc. (Nasdaq: DSCI ... wound care, announces that AMNIOEXCEL® and AMNIOMATRIX®, amniotic ... to the Premier, Inc. Regenerative Skin Grafting contract ... AMNIOEXCEL® and AMNIOMATRIX® product lines, which continue to ...
(Date:12/24/2014)... and NEW YORK , Dec. 24, 2014 ... advancing patient care in critical areas, announced the closing of ... and warrants to purchase up to an aggregate 3,500,000 shares ... share and $.01 per warrant.  The warrants have a per ...
Breaking Biology Technology:Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3
... deCODE genetics,(Nasdaq: DCGN ) today announced that it ... presentation at the JPMorgan 26th Annual Healthcare,Conference., The ... 7:30 pm GMT on,Thursday, January 10 at the Westin ... through the Investors page on deCODE,s website, http://www.decode.com, ...
... Faced with modest growth in the,traditional life ... to,opportunities in agricultural, biodefense and molecular diagnostics. ... research and,advisory firm BioInformatics, LLC today released ... preferences of scientists working in,these dynamic markets. ...
... million in ... 2007-, - sNDA submitted for ... showing favorable results - - New proteasome inhibitor, MLN2238, enters development ... 2007 net income financial guidance -, CAMBRIDGE, Mass., Jan. 4 Building ...
Cached Biology Technology:Study Examines Media Preferences of Life Scientists in Applied Markets 2Study Examines Media Preferences of Life Scientists in Applied Markets 3Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 2Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 3Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 4Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 5Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 6Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 7Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 8Millennium Announces 2008 Goals for Growth, Building on Record 2007 Results 9
Quantibody Human Angiogenesis Array 1 (1 slide) Class: Quantitative Antibody Arrays Product Group: Antibody Array...
Vertical Rack (five box vapor phase rack), includes 2.0" (5.1cm) boxes...
... PAGE Cleavable ICAT Reagent ... Protein ID and Quantitation ... Electrophoresis (PAGE), isotope-coded affinity ... technology to facilitate the ...
Conjugate Quality Control Evaluation Specificity: Conjugate Quality Control Evaluation ...
Biology Products: