Navigation Links
Spud origin controversy solved

Molecular studies recently revealed new genetic information concerning the long-disputed origin of the “European potato.?Scientists from the University of Wisconsin-Madison, the University of La Laguna, and the International Potato Center used genetic markers to prove that the remnants of the earliest known landraces of the European potato are of Andean and Chilean origin. They report their findings in the May-June 2007 issue of Crop Science.

“European potatoes,?the cultivated potatoes first appearing in Europe and later spreading worldwide, were first recorded outside of the Americas in 1567 on the Canary Islands Archipelago. Today, scientists believe that the remnant landraces of these early potatoes still grow in on the Canary Islands.

For years, researchers have debated the birthplace of the European potato. While some scientists hypothesized that landrace introductions originated in the Andes, others believed that the introductions came from Chile. While there are multiple lines of evidence to support each theory, the Andean introduction hypothesis stems from the belief that the Canary Islands landraces are solely of Andean origin. Although almost all current European potatoes have Chilean traits, the Andean hypothesis supposed that these potatoes arose from crosses with Chilean potatoes as breeding stock after the Irish potato famine in the 1840s.

Using molecular markers, the scientists found that the Canary Island landraces possessed both Andean and Chilean types, as well as possible hybrids of the two.

“In combination with other historical, molecular, agronomic, and crossing data, these findings support a hypothesis of multiple early introductions of both Andean and Chilean germplasm to the Canary Islands and to Europe,?said Dr. David Spooner, co-author of the Crop Science study.

Spooner and others speculate that the early European potato was selected from Chilean introductions before the 1840s because they we re better able to reproduce in long-day conditions, in contrast to Andean potatoes that were short-day adapted.

“The results of these studies are of interest not only to evolutionists but also for breeders. Years of effort were made to artificially recreate the European potato from Andean landraces yet it may have originated from Chile,?said Spooner. “If the true origin of the European potato was from Chile, rather from the Andes, it shows the value of plant evolutionary studies to understand and complement breeding programs?

Spooner and other scientists now plan to further investigate the origin of the European potato from DNA extracted from herbarium specimens of cultivated potatoes collected in Europe before 1845.

“The results of these studies are providing data to rewrite the history of the cultivated potato and will aid breeders to better interpret the true pedigrees of our modern potato,?said Spooner.

Source:American Society of Agronomy

Related biology news :

1. UAB scientists discover the origin of a mysterious physical force
2. An (ecological) origin of species for tropical reef fish
3. Ancient DNA helps clarify the origins of two extinct New World horse species
4. The genetic origins of corn on the cob
5. Scientists discover stem cell origin of neck and shoulders
6. Ancient DNA confirms single origin of Malagasy primates
7. Lifes origins were easier than was thought
8. Study charts origins of fear
9. Scientists crack 40-year-old DNA puzzle and point to hot soup at the origin of life
10. The first laugh: New study posits evolutionary origins of two distinct types of laughter
11. Ancient anthropoid origins discovered in Africa

Post Your Comments:

(Date:11/4/2015)... --> --> ... Transparency Market Research "Home Security Solutions Market - Global Industry ... 2022", the global home security solutions market is expected to reach ... market is estimated to expand at a CAGR of ... Rising security needs among customers at homes, the emergence ...
(Date:10/29/2015)... Va. , Oct. 29, 2015 Daon, ... today that it has released a new version of ... customers in North America have ... IdentityX v4.0 also includes a FIDO UAF certified ... are already preparing to activate FIDO features. These customers ...
(Date:10/29/2015)... NEW YORK , Oct. 29, 2015 /PRNewswire/ ... wearable technology, announced a partnership with 2XU, a ... accessories, to deliver a smart hat with advanced ... runners and other athletes to monitor key biometrics ... of the strategic partnership, the two companies will bring ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... Studies reveal the differences in ... pave the way for more effective treatment for one of ...   --> --> Gum ... in cats, yet relatively little was understood about the bacteria ... been conducted by researchers from the WALTHAM Centre for Pet ...
(Date:11/25/2015)... 25, 2015  Neurocrine Biosciences, Inc. (Nasdaq: NBIX ... and CEO of Neurocrine Biosciences, will be presenting at ... New York . .   ... approximately 5 minutes prior to the presentation to download ... presentation will be available on the website approximately one ...
(Date:11/25/2015)... ... 2015 , ... A long-standing partnership between the Academy of ... formalized with the signing of a Memorandum of Understanding. , AMA Executive Director ... Minter and Capt. Albert Glenn Tuesday, November 24, 2015, at AMA Headquarters in ...
(Date:11/25/2015)... 25, 2015 The Global ... a professional and in-depth study on the current ... (Logo: ) , The ... including definitions, classifications, applications and industry chain structure. ... international markets including development trends, competitive landscape analysis, ...
Breaking Biology Technology: