DNA Helps Track Origins Of Growing Blight Problem

Using DNA markers as a tracking mechanism, a Simon Fraser University researcher has discovered that British Columbia's escalating blight problem - unique in Canada because it affects both potatoes and tomatoes - most likely originated with the importation of diseased tomatoes from Mexico. Dr. Zamir Punja, director of SFU's centre for pest management, says he was surprised at the results of his DNA study which also highlights the importance of home gardeners routinely getting rid of diseased tomato plants year-round. Caused by fungus, blight appears as large, brown blotches on leaves, stems and fruit causing them eventually to shrivel and die. It spreads through the release of spores. "Tomato plants with blight result in high spore levels and spores can travel up to 20 kilometres to infect both potato and tomato plants," he explains. Punja, who has been studying blight for five years, urges home gardeners to get rid of infected tomato and potato plants by burying or bagging them. "Home garden tomatoes are rarely treated for blight and diseased plants are usually left unattended throughout the summer which leads to high spore levels. Disposing of infected plants will help the potato industry and other home gardeners as well," says Punja. B.C.'s growing blight problem has developed in part because of increasingly wet summers, as well as new aggressive strains of the fungus, according to Punja. "Diseased tomatoes are important, as shown by our study of the DNA markers, because they produce genetically complex strains of blight through sexual recombination," he adds. There are no blight-resistant tomato varieties, although greenhouse tomatoes are unaffected because they are enclosed. Punja says blight has become an increasingly costly agricultural disease in

Contact: Ken Mennell
Simon Fraser University

Page: 1 2

Related biology news :

1. Software Helps Decipher Genomes Of Higher Organisms
2. Nutrition Therapy Helps Patients Emotionally, Research Shows
3. ASU Professor Helps In Fight To Protect Japanese Pika Habitat
4. Whitehead Study Supports Existence Of Ancient RNA World, Helps Provide Insight Into Early Evolution Of Life
5. Duke Study Helps Explain How Cells Divvy Up Genes During Reproduction
6. Transplanted Skeletal Muscle Mimics Heart Muscle; Helps Failing Heart Pump, Duke Researchers Say
7. Security Code Helps Immune Cells Attack Foe And Spare Self
8. NASA Research Helps Map Protein Structures -- Key In The Development Of New Disease-Fighting Drugs
9. Auditory Scene Analysis Helps Find Mates
10. UF Researchers Innovative Fence Helps Control Sand Flies
11. Interleukin-12 Helps Control Mycobacterium Avium Infection

Post Your Comments:

(Date:8/21/2019)... ... August 20, 2019 , ... ... second time since BioInformatics first fielded the survey in 2016. The results ... Experience , from BioInformatics, part of Science and Medicine Group. More than 800 ...
(Date:8/15/2019)... ... August 15, 2019 , ... Serialization deadlines in ... become increasingly complex, and aggregation becomes fully applied in the United States in ... long-term solution. , Until now, most regulations?including the Drug Supply Chain Security Act ...
(Date:8/14/2019)... LAKE CITY, and MARTINSRIED, Germany (PRWEB) , ... ... ... in high-throughput antibody screening and characterization, announced today that they have opened a ... Carterra’s platform has fueled the need for the new office. , The Munich ...
Breaking Biology News(10 mins):
(Date:8/4/2019)... ... ... Cirtec Medical Corporation, a strategic outsourcing partner for complex medical devices, including active ... 30,000 sq. ft. manufacturing facility in the Coyol free zone, located in Alajuela, ... expected to be fully operational by the end of the year, will be the ...
(Date:7/19/2019)... ... July 18, 2019 , ... World renowned two-time Everest summiter ... with California-based charity Coalition Duchenne for its 9th Annual Expedition Mt. Kinabalu in ... funding for Duchenne muscular dystrophy and was founded by Sabahan Catherine Jayasuriya. ...
(Date:7/9/2019)... ... , ... Today, at the BIO World Congress on Industrial Biotechnology ... announced the winners of the Consider Corn Challenge II. Three winners were chosen, each ... produce biobased materials. , “Corn is a sustainable, abundant and affordable industrial ...
(Date:6/18/2019)... , ... June 18, 2019 , ... Personalized Stem ... New Drug (IND) application to the FDA for use of a person’s own adipose-derived ... a treatment of osteoarthritis in the knee. This IND is the first of ...
Breaking Biology Technology:
Cached News: