Navigation Links
Tastier tomatoes in the future?

Tomatoes are good for you. They strengthen the immune system and can prevent heart and circulatory disease. Now, researchers from the Max Planck Institute of Molecular Plant Physiology, in co-operation with Israeli scientists, have identified DNA fragments in tomatoes that make their contents both healthy and tasty. The researchers crossed wild tomatoes with cultured ones, then investigated the contents and genetic make-up of the hybrid. The results could allow tomato growers to use wild tomatoes to produce cultured tomatoes with the characteristics they desire (Nature Biotechnology, March 12, 2006).

Tomatoes are a major nutrient for humans. In 2004, 120,000 tonnes of tomatoes were harvested worldwide - and every year this number increases. Numerous medical studies have shown the health value of tomatoes. Lycopen, the pigment that makes tomatoes red, can for example prevent heart disease. Tomatoes furthermore contain a lot of vitamins C and E, indispensable for human nourishment. But after centuries of cultivation for shape, colour, and other useful qualities, our cultured tomatoes today are of small genetic diversity, in comparison with wild types. This has affected the taste and health value of the fruits.

To cultivate tomato strains with particular characteristics, researchers have to increase the genetic diversity of cultured tomatoes. This can be done either by cross-breeding them with wild tomatoes, or changing their genetic make-up technologically. Scientists from the Max Planck Institute for Molecular Plant Physiology in Golm, and their Israeli colleagues at Hebrew University in Jerusalem, chose the second option. They investigated strains of tomatoes created from the crossing of cultured and wild types. Their goal was to identify the biochemical composition of fruits and determine which factors control their development. The German-Israeli research team used a method of analysis developed at the Max Planck Institute for Molecular Plant Physio logy. The technique - a combination of mass spectrometry and gas chromatography - analyzes the composition of biological samples. It can be used to quickly and simultaneously look into a fruit's amino acids, organic acids, sugar and vitamins.

Dr. Alisdair Fernie, head of the Institute's "Central Metabolism" research group, discovered that there were 880 variations in the content composition of descendants produced by crossing cultured tomatoes and wild tomatoes. "On one hand, we measured higher amounts of essential amino acids and vitamins, on the other hand the fruits showed an altered combination of various sugars and organic acids," Fernie says. These contents have a great influence on the taste of tomatoes.

The scientists used molecular biological methods to identify parts of the tomato genomes responsible for biochemical changes. The researchers' findings could make it possible in the future to cross-breed wild tomatoes with cultured tomatoes in a targeted way to make them more nutritious.


'"/>

Source:Max-Planck-Gesellschaft


Related biology news :

1. Anyway you slice it, tomatoes cut through drought with new gene
2. Unique tomatoes tops in disease-fighting antioxidants
3. Scientists genetically engineer tomatoes with enhanced folate content
4. Cellulosic ethanol: Fuel of the future?
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/14/2016)... -- NXTD ) ("NXT-ID" or the "Company"), a ... airing of a new series of commercials on Time Warner ... st .  The commercials will air on Bloomberg TV, Fox ... Street show. --> NXTD ) ("NXT-ID" or the ... announces the airing of a new series of commercials on ...
(Date:3/10/2016)... , March 10, 2016 ... market research report "Identity and Access Management Market by ... Compliance, and Governance), by Organization Size, by Deployment, by ... published by MarketsandMarkets, The market is estimated to grow ... Billion by 2020, at a Compound Annual Growth Rate ...
(Date:3/9/2016)... 9, 2016  Crossmatch ® , a leading ... today announced the addition of smart features to ... multi-factor authentication platform. New contextual and application-specific authentication ... security where it,s needed most — while minimizing ... . --> Washington, DC ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... May 25, 2016 , ... ... Thai delegation at BIO 2016 in San Francisco. Located at booth number 7301, ... available to answer questions and discuss the Thai biotechnology and life sciences sector. ...
(Date:5/25/2016)... ... 2016 , ... The American Medical Informatics Association (AMIA) responded ... Coordinator for Health IT (ONC) outlining a measurement approach to interoperability that focuses ... and where it was needed. The organization of health informatics professionals said a ...
(Date:5/25/2016)... Melbourne, FL (PRWEB) , ... May 25, 2016 , ... ... of eight she tore her cruciate ligament in her left knee. Lady’s owner Hannah ... , a central Florida board-certified veterinary surgeon, to repair her cruciate ligament and help ...
(Date:5/24/2016)... Israel , May 24, 2016   MedyMatch Technology ... physicians with artificial intelligence, real-time decision support tools in the ... present at the 2016 Israeli Advanced Technology Industries (IATI) BioMed ... Israel,s 15th National Life Sciences and ... at the David Intercontinental Hotel in Tel Aviv, ...
Breaking Biology Technology: