Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Discovery of genetic mechanism allowing potato cultivation in northern latitudes

07.03.2013
An international team of scientists headed by Wageningen University, part of Wageningen UR, has discovered a genetic mechanism which allows potato plants to develop tubers during the long days of spring and summer in northern latitudes.

Wild potatoes, which originate in the Andes of South America, were brought to Europe by Spanish sailors in the late 16th century. Naturally occurring near the Equator, Andean potatoes develop tubers on days which are relatively shorter than those in high latitude summer.

Newly discovered mutations in a single potato gene are likely to have contributed to the widespread success of the potato, which is the third most important food crop in the world today.

Although the potato was probably domesticated as long as 10,000 years ago, the distribution of this crop plant was initially restricted to farming communities in what are today Chile, Bolivia and Peru. Only after the Spanish conquest was the potato imported to Europe.

Since the European growing season of spring and summer is characterised by long days and short nights, native South American potato varieties would only begin making tubers in autumn, when the days last 12 hours or less. However, modern potato varieties show a wide variation in the timing of tuber formation, with early varieties starting as early as April.

The mutations in the newly discovered regulator of tuber formation allow potatoes to escape the original short day regulation mechanism suited to the Andes, so that potatoes can grow and be cultivated in northern Europe and other northern latitudes throughout the world.

The team of scientists, headed by Wageningen UR Plant Breeding, has published its findings on the gene allowing potato to grow and flourish far from its Andean origins in the international scientific journal Nature. The authors also describe a variety of mutations in the tuber formation regulator gene which occur in different combinations in modern potato cultivars, giving rise to early, medium and late varieties, depending on the combination of the gene variants present in the tetraploid crop. Knowledge of the genes underlying the mechanism of early development will allow plant breeders to tailor new potato varieties to various geographic locations.

The research was co funded by the European Union, Technology Foundation STW and Wageningen UR.

Wageningen University is part of the international expertise organisation Wageningen UR (University & Research centre). Our mission is ‘To explore the potential of nature to improve the quality of life’. Within Wageningen UR, nine research institutes – both specialised and applied – have joined forces with Wageningen University to help answer the most important questions in the domain of healthy food and living environment. With approximately 40 locations (in the Netherlands, Brazil and China), 6500 members of staff and 10,000 students, Wageningen UR is one of the leading organisations in its domain worldwide. The integral approach to problems and the cooperation between the exact sciences and the technological and social disciplines are at the heart of the Wageningen Approach.

Erik Toussaint | Meltwater Press
Further information:
http://www.wageningenur.nl

More articles from Life Sciences:

nachricht World’s Largest Study on Allergic Rhinitis Reveals new Risk Genes
17.07.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt

nachricht Plant mothers talk to their embryos via the hormone auxin
17.07.2018 | Institute of Science and Technology Austria

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Microscopic trampoline may help create networks of quantum computers

17.07.2018 | Information Technology

In borophene, boundaries are no barrier

17.07.2018 | Materials Sciences

The role of Sodium for the Enhancement of Solar Cells

17.07.2018 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>