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:2/11/2016)... (PRWEB) , ... February 11, 2016 , ... ... medical dynamometers and ergoFET force gauges used in physical therapy, occupational therapy and ... Indicator sensor for resistance cord exercise and therapy, introduces its new microFET Digital ...
(Date:2/11/2016)... , ... February 11, 2016 , ... As part of ... of the Million Dollar Round Table Foundation (MDRTF), has gifted $10,000 to University of ... Colleen’s Dream Foundation President Billy Cundiff. , “We are honored to support a promising ...
(Date:2/10/2016)... ... ... LaserShip, a regional parcel carrier that services the eastern U.S., donated and ... in order to aid in the Flint water crisis. In 2014, LaserShip acquired Prestige ... Clio, only 15 miles away from Flint. , “We have deep roots in the ...
(Date:2/10/2016)... ... February 10, 2016 , ... InDemand Interpreting ... Healthcare, recently partnered with Heart City Health Center to improve access ... years, Heart City Health Center has provided the Elkhart community with access to ...
(Date:2/10/2016)... ... February 10, 2016 , ... 10 Best Water is ... leading bottled water brand owners that topped the list as a result of their ... conversion. The premier brand was Tibet 5100, a top notch water company that specializes ...
Breaking Medicine News(10 mins):
(Date:2/10/2016)... , February 10, 2016 A ... which will be held at Victoria Park Plaza in ... an informative seminar on technology and future advances for late ... led by Lorna Graham , associate director of project ... to keep up with new regulations and standards in late ...
(Date:2/10/2016)... Puerto Rico Healthcare and Life Sciences Report 2016 ... Report 2016 . --> Focus Reports releases ... Sciences Report 2016 . pharmaceuticals , or ... world for pharma manufacturing, a territory with significantly improved capabilities ... per square mile than anywhere else on the planet. ...
(Date:2/10/2016)... , Feb. 10, 2016 Convergence ... confluence of various technologies that results in ... unavailable. These opportunities create a cyclical system ... turn, drives the development of new technologies. ... characterized by technology convergences, which are constantly ...
Breaking Medicine Technology: