Navigation Links
Drought tolerance in potatoes
Date:6/27/2008

Climate change is expected to exacerbate drought events throughout the world, resulting in large-scale ecosystem alteration and failure of drought-sensitive crops. In addition, periods of drought vary from year to year in severity and length, making it difficult for plants to adapt to more severe conditions. Many modern varieties of potatoes are considered to be drought-sensitive. However, evolution and cultivation in the cold, dry Andean Altiplano gave rise to a number of potato varieties that could tolerate drought. Scientists are studying these varieties to identify the genes and molecular mechanisms of drought tolerance in order to engineer new drought-resistant crops of potato, as well as other Solanaceous vegetables.

Dr. Roland Schafleitner and his colleagues, Raymundo Oscar Gutierrez Rosales, Luz Rosalina Tincopa Marca, and Merideth Bonierbale, are examining the genes for drought tolerance traits in several native Andean potato landraces. Dr. Schafleitner, of the Germplasm Enhancement and Crop Improvement Division, International Potato Center in Peru, will be presenting this work at a symposium on the Biology of Solanaceous Species at the annual meeting of the American Society of Plant Biologists in Mrida, Mexico (June 29, 8:30 AM).

From tiny dark blue tubers to huge tan bakers, potatoes come in an astonishing variety of colors and sizes, reflecting their genetic variety as well as their long history of cultivation. Potato was first domesticated in the Peruvian Andes over 7,000 years ago and was carried to Europe in the late 16th century, becoming such an important food source that a failure in the crop caused by blight in Ireland triggered a famine. It is a member of the Solanaceae or nightshade family, which also includes tomato, eggplant, tobacco, and chili peppers.

Drought first causes stomatal closure, reducing CO2 uptake for photosynthesis, reducing plant growth and yield. Plants vary in the types and speed
'/>"/>

Contact: Roland Schlafleitner
r.schafleitner@cgiar.org
511-349-6017
American Society of Plant Biologists
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Gene that controls ozone resistance of plants could lead to drought-resistant crops
2. Beavers can help ease drought
3. Moss genome shows how plants invaded the land and learned to survive heat and drought
4. New Raider Amethyst prairie verbena: conserves water, drought-tolerant
5. After drought, ponds keep up with the Joneses
6. Newfound ancient African megadroughts may have driven the evolution of humans and fishes
7. Amazon forest shows unexpected resiliency during drought
8. Tolerance to inhalants may be caused by changes in gene expression
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... spiciness that is irresistible to some, but intolerable to ... their findings to develop a new drug candidate for ... inflammation or other problems. They reported their progress on ... in ACS, Journal of Medicinal Chemistry . , ... had pegged a compound called capsaicin as the active ...
(Date:8/20/2014)... of honeybees grows to about 4,000 members, it triggers ... building of a special type of comb used for ... from the Department of Neurobiology and Behaviour at Cornell ... reproductive cycle of honeybee colonies. The results are published ... Nature . , Reproduction isn,t always a honeybee ...
(Date:8/19/2014)... made to decrease China,s increasing caesarean section rate, suggests ... BJOG: An International Journal of Obstetrics and Gynaecology (BJOG) ... delivery rates in the world. Of 16 million babies ... the exact rate is not known, the current Chinese ... caesarean rates ranging from 36% to 58%. However, before ...
Breaking Biology News(10 mins):Worker bees 'know' when to invest in their reproductive future 2Is China's 50 percent cesarean section delivery rate too high? 2Is China's 50 percent cesarean section delivery rate too high? 3
... WASHINGTON, Sept. 26 2007 -- Consuming large amounts of ... used painkillers in the United States, could potentially cause ... in the Oct. 15 print issue of ACS Chemical ... could occur not only from drinking caffeinated beverages while ...
... said today that the discovery of 11 new animal and ... the importance of conservation efforts in the ancient tropical forests ... tropical forests of a region known as Vietnams Green Corridor, ... well as three other plants new to science and exclusive ...
... sensing the magnetic reference direction, have recently been found ... PNAS, 2004). Furthermore, studies investigating what parts of a ... their magnetic compass showed that the cryptochrome-containing neurons in ... et al., PNAS, 2005; Liedvogel et al., EJN, 2007) ...
Cached Biology News:Mixing large doses of both acetaminophen painkiller and caffeine may increase risk of liver damage 2New animal and plant species found in Vietnam 2
(Date:8/20/2014)... Canada (PRWEB) August 20, 2014 Not ... that E&L studies should be performed late in the ... is known. But current regulatory trends suggest that, like ... on the rise. In recent years, multiple drug sponsors ... packages or address specific questions during phase I/II. It’s ...
(Date:8/20/2014)... ear could improve the health of your heart, researchers ... Leeds used a standard TENS machine like those designed ... the tragus, the small raised flap at the front ... canal. , The stimulation changed the influence of the ... signals that can drive failing hearts too hard. , ...
(Date:8/20/2014)... Bulgaria (PRWEB) August 20, 2014 ... was released today including improvements to the enterprise ... and connectors for Lucene, SOLR and Elasticsearch. This ... for this high performance triplestore – GraphDB™ was ... interested in deploying the only mature enterprise resilient ...
(Date:8/19/2014)... August 19, 2014 Shimadzu Scientific ... systems, Prominence-i and Nexera-i, adding to the company’s ... excellent functionality, an intuitive operating environment, and full ... more efficient workflow for conventional to ultra-high-speed analysis. ... intuitive and intelligent design so users can begin ...
Breaking Biology Technology:Are Extractable and Leachables going Phase-Appropriate? New Webinar Hosted by Xtalks 2'Tickling' your ear could be good for your heart 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 3
... Corporation (NYSE:,DHR) announced that President and Chief Executive ... the J.P. Morgan Healthcare Conference in,San Francisco on ... audio will be,simultaneously webcast on http://www.danaher.com . ... for one week., Danaher Corporation is a ...
... China Technology,Development Group Corporation (Nasdaq: CTDC; "the Company" ... products and solutions focusing on,solar energy business in ... ceremony to showcase the first SnO2 production line ... 2007., Accompanied by Mr. Alan Li, our ...
... 3 Neogen Corporation,(Nasdaq: NEOG ) announced today ... 2008, which ended Nov. 30, increased 34% from the ... net income in the,quarter rose to $0.22 per share, ... income of $3,254,000 set another quarterly,record for the 25-year-old ...
Cached Biology Technology:CTDC Holds a Ribbon Cutting Ceremony to Showcase First SnO2 Production Line 2CTDC Holds a Ribbon Cutting Ceremony to Showcase First SnO2 Production Line 3Neogen Reports 34% Increase in Net Income, 23% Increase in Revenues 2Neogen Reports 34% Increase in Net Income, 23% Increase in Revenues 3Neogen Reports 34% Increase in Net Income, 23% Increase in Revenues 4Neogen Reports 34% Increase in Net Income, 23% Increase in Revenues 5
Sf21 Insect Cells (Live) in Max-XP Medium...
... The BioGenex Super Sensitive ... is a novel product ... non-biotin polymeric technology. This ... signal to noise ratio ...
Artisan™ Wash Solution (x 50) Additional Information: EU regulatory status: CE US regulatory status: IVD ...
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
Biology Products: