Navigation Links
Scientists clarify origins of potato germplasm Neo-Tuberosum
Date:6/2/2010

This release is available in Spanish.

A recent study conducted by scientists with the Agricultural Research Service (ARS) and cooperators shows the potato germplasm Neo-Tuberosum, used by potato breeders to develop new cultivars, has origins that can be traced to Chile, not to the Andes as previously believed.

Native "landrace" potatoes come from two areas: lowland central Chile and the Andes mountains from Venezuela south to northern Argentina. These geographical groups of potato, Solanum tuberosum, differ mainly in day-length adaptationthe amount of daylight needed for them to tuberize or begin to develop. The Andean potato is adapted to short-day conditions widespread in the mountainous, tropical region from which it came. The Chilean potato, on the other hand, evolved under long-day conditions, making it pre-adapted to grow in other long-day-length environments like Europe and North America.

The Andean potato contains many desirable traits, such as virus X and Y resistance, earlier tuberization and greater yield. In the 1960s, an English potato breeder sought to take the Andean potato and adapt it for use in long-day-length regions. This new potato germplasm was named "Neo-Tuberosum" and is widely used by potato breeders to develop new potato varieties.

ARS botanist David Spooner, with the agency's Vegetable Crop Research Unit in Madison, Wis., and his colleagues at the International Potato Center in Lima, Peru, originally sought to measure how much the genetic base of modern potato varieties and breeders' lines had broadened with respect to the Andean and Chilean landraces.

Spooner and his collaborators unexpectedly found Neo-Tuberosum is not a product of strict inter-Andean breeding as previously believed. Instead, it's a descendant of the Chilean potato.

According to Spooner, the study, which was published in Theoretical Applied Genetics, will change the way this potato species is viewed by scientistsparticularly phylogeneticists, who study the evolutionary history of an organism. The discovery will also help researchers gain knowledge of potato classification and identification and will encourage breeders to reexamine the value of the material from the Andean potato.


'/>"/>

Contact: Stephanie Yao
Stephanie.Yao@ars.usda.gov
301-504-1619
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Related biology news :

1. Atmospheric scientists start monthlong air sampling campaign
2. Scripps research scientists determine structure of immune molecule that counteracts HIV strains
3. NYSCF awards fellowships to 8 innovative stem cell scientists
4. Scientists decipher structure of natures light switch
5. Scientists find genes associated with throat cancer through study of over 10,000 subjects
6. NIST scientists gain new core understanding of nanoparticles
7. Scientists conclude asteroid ended the age of dinosaurs
8. Scientists to study impact of gulf oil spill on marine food webs
9. Scripps Research scientists break barrier to creating potential therapeutic molecules
10. Singapore scientists exploit knowledge of p53 for increasing specificity of cancer treatments
11. FASEB Scientists Descend on Capitol Hill to Advocate for Increased Science Funding
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2017)... ARMONK, N.Y. and ITHACA, N.Y. ... IBM ) and Cornell University, a leader in dairy ... combined with bioinformatics designed to help reduce the chances ... breaches. With the onset of this dairy project, Cornell ... the Consortium for Sequencing the Food Supply Chain, a ...
(Date:5/23/2017)... Italy , May 23, 2017  Hunova, the first robotic gym ... trunk, has been officially launched in Genoa, Italy . ... Europe and the USA . The technology ... on the market by the IIT spin-off Movendo Technology thanks to a ... the Multimedia News Release, please click: ...
(Date:5/16/2017)...   Bridge Patient Portal , an enterprise ... EMR Systems , an electronic medical record solutions ... established a partnership to build an interface between ... Centricity™ products, including Centricity Practice Solution (CPS), Centricity ... new integrations will allow healthcare delivery networks using ...
Breaking Biology News(10 mins):
(Date:7/20/2017)... ... ... Dr. Asher Kimchi, Founder and Chairman of the International Academy of ... 22nd World Congress on Heart Disease held in Vancouver, BC, Canada. In addition to ... Awards. , Dr. Asher Kimchi, together with Co-Chairmen Dr. John A. Elefteriades and Dr. ...
(Date:7/20/2017)... , ... July 20, 2017 , ... Corporate Directors Forum ... its 27th annual Director of the Year Awards. , The awards will be presented ... This annual event celebrates directors who have made significantly positive contributions in the ...
(Date:7/18/2017)... ... 18, 2017 , ... G-CON today announced that it has ... its Patent Applications 14/858,857 and 13/669,785 both entitled Modular, Self-Contained, Mobile Clean Room. ... the protection of G-CON’s R&D investments and validate the G-CON platform as a ...
(Date:7/17/2017)... ... ... The Academy of Model Aeronautics (AMA) will host Aviation Adventure Day on ... from 9 a.m. to 2 p.m. at the International Aeromodeling Center in Muncie, Indiana. ... Day will be packed with entertaining activities for the entire family. Attendees will learn ...
Breaking Biology Technology: