Researchers Describe Gene that Makes Large, Plump TomatoesAugust 23, 2017
In a study published in PLOS Genetics on August 17, 2017, Esther van der Knaap of the University of Georgia, Athens and colleagues describe Cell Size Regulator (CSR) gene, where mutation during the tomato domestication process allows farmers to grow big and plump juicy tomatoes. The CSR gene boosts fruit weight by increasing the size of individual cells in the pericarp, which is the fleshy part of the tomato.
Domesticated tomato varieties carry a mutation in the CSR genes that shortens the resulting protein in tomato cells, and that truncation likely affects its role in regulating cell differentiation and maturation in the fruit and vascular tissues. The variation originated in the cherry tomato, but now appears in all large cultivated tomato varieties.
The new study expands the previous research that identified the location of CSR gene at the bottom of chromosome 11 as only a small genetic contributor to tomato weight. Now with the cloning of the gene, the finding that most cultivated tomatoes carry the shortened version of the CSR gene suggests that humans selected this genetic variation extensively and that it was critical to the full domestication of tomato from its cherry tomato ancestors.
For more, read the paper in PLOS Genetics.
Biotech Updates is a weekly newsletter of ISAAA, a not-for-profit organization. It is distributed for free to over 22,000 subscribers worldwide to inform them about the key developments in biosciences, especially in biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
See more articles:
News from Around the World
- Terminology Matters in Biosafety Communication
- Biologists Show How Plants Turn Off Genes They Don't Need
- Researchers Describe Gene that Makes Large, Plump Tomatoes
- Australian OGTR Receives License Application for Commercial Release of GM Cotton
- Vietnam Will Have to Continue Importing Maize
- Davao Stakeholders Updated on Crop Biotech and Philippine Biosafety Guidelines
- Green Revolution Genes Promise More Yield
- GmSN1 Overexpression Enhances Virus Resistance in Arabidopsis and Soybean
- Role of PtrZPT2-1 Gene in Plant Tolerance to Multiple Abiotic Stresses
Beyond Crop Biotech
- Plant-produced African Horse Sickness Virus Novel Vaccine
From the BICs
- DA-Davao Info Officers Explore Social Media for Sharing Agri Innovations
- PARC Adopts New Techniques for Agricultural Development in Pakistan
- Updated Pocket Ks on Biotech Now Available
- Targeted Mutagenesis in Tetraploid Switchgrass
- CRISPR-Cas9 Genome Editing in Rapeseed
Read the latest:
- Biotech Updates (October 4, 2023)
- Gene Editing Supplement (September 27, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: