Navigation Links
Gene Boosts Tomato's Color, But May Make It Less Tasty
Date:6/29/2012

FRIDAY, June 29 (HealthDay News) -- The gene mutation that makes a tomato uniformly red is the same trait that reduces its sweetness, researchers have found.

A team from the Boyce Thompson Institute (BTI) for Plant Research at Cornell University, the U.S. Department of Agriculture (USDA), and the University of California, Davis discovered that the mutation, which is found in most supermarket tomatoes, reduces the amount of sugar, carbohydrates and carotenoids in the fruit.

"Practically, it is a very important trait," one of the study's senior authors, James Giovannoni, a plant molecular biologist with BTI and the USDA Agricultural Research Service, said in a Cornell news release. "It's a gene that, whether you realize it or not, most of your tomatoes have." But this trait also cuts the tomatoes' levels of sugars and nutrients.

Naturally ripened tomatoes have uneven patches of darker green and different shades of red. In the 1920s, however, commercial breeders found a natural mutation in tomatoes that causes them to ripen evenly from one shade of green to one shade of red. This mutation, the researchers explained, is evident in most tomatoes sold in grocery stores.

In conducting the study, the scientists pinpointed the location of the "uniform-ripening" gene. Using this location, the researchers uncovered the gene coding for the protein that controls photosynthesis levels in tomatoes.

Although leaves are the primary site of photosynthesis in plants, the study authors pointed out that developing tomato fruit can contribute up to 20 percent of their own photosynthesis, producing high sugar and nutrient levels when fully ripe. The uniform-ripening mutation, however, removes this protein, which reduces the tomatoes' sugar levels, they found.

"This is an unintended consequence," noted Giovannoni. "Producers currently don't get a penny more for [flavor] quality."

Producers who care more about taste than appearance should ensure their plants are mutation free, the researchers suggested in the report published in the June 29 issue of the journal Science.

The study "is a rare chance to translate scientific findings to the real world," said Ann Powell, a research biochemist who led the UC Davis team's efforts on the research. "It provides a strategy to re-capture quality characteristics that had been unknowingly bred out of modern cultivated tomatoes," she noted in the news release.

More information

Cornell University has more about plant breeding and genetics.

-- Mary Elizabeth Dallas

SOURCE: Cornell University, news release, June 28, 2012


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Gatekeeper of brain steroid signals boosts emotional resilience to stress
2. Dessert With Breakfast Boosts Weight Loss: Study
3. Exercise Program Boosts Health After Lung Transplant: Study
4. The Science of Tasty Tomatoes Lies in the Chemicals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Gene Boosts Tomato's Color, But May Make It Less Tasty
(Date:6/26/2016)... ... June 26, 2016 , ... On June 10-11, 2016, A ... 2016 Cereal Festival and World’s Longest Breakfast Table in Battle Creek, MI, where the ... history as home to some of the world’s leading providers of cereal and other ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... policy issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at ... on several important health care topics including advance care planning, healthcare costs and ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... As a ... Magna Cum Laude and his M.D from the David Geffen School of Medicine at ... returned to Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars ...
(Date:6/24/2016)... ... ... Those who have experienced traumatic events may suffer from a complex set of ... or alcohol abuse, as a coping mechanism. To avoid this pain and suffering, Serenity ... event. , Trauma sufferers tend to feel a range of emotions, from depression, guilt, ...
(Date:6/24/2016)... ... June 24, 2016 , ... Dr. Amanda Cheng, an ... Cheng has extensive experience with all areas of orthodontics, including robotic Suresmile technology, ... , Micro-osteoperforation is a revolutionary adjunct to orthodontic treatment. It can be ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... June 24, 2016 Research ... "Structural Electronics 2015-2025: Applications, Technologies, Forecasts" ... In-Mold Electronics, Smart Skin, Structural Health ... Structural electronics involves electronic and/or electrical ... structures, replacing dumb structures such as vehicle bodies ...
(Date:6/24/2016)... Research and Markets has announced the addition of ... report to their offering. ... The World Market for Companion Diagnostics covers the world market ... the report includes the following: , World ... Region (N. America, EU, ROW), 2015-2020 , World IVD ...
(Date:6/24/2016)... , June 24, 2016  Arkis BioSciences, ... less invasive and more durable cerebrospinal fluid treatments, ... funding.  The Series-A funding is led by Innova ... Fund, and other private investors.  Arkis, new financing ... instrumentation and the market release of its in-licensed ...
Breaking Medicine Technology: