Yeast Responds to the Environment by Optimizing its Genome
July 22, 2015| |
A study conducted by researchers from Babraham Institute and Cambridge University revealed that yeast can modify its genome to take advantage of the excess calories in the environment and attain optimal growth.
The researchers analyzed the genes encoding ribosomes and the target of rapamycin (TOR) signal through examining the gene amplification occurring in yeast engineered to carry a sub-optimal complement of ribosomal DNA genes.
Findings reveal that the engineered yeast cells perceived the normal environment as containing an excess of calories due to their difficulty in producing enough ribosomes to sustain normal levels of protein synthesis. The TOR signalling responds to caloric express, initiating the pathway for ribosomal DNA gene amplification. This amplification provides a long term, heritable increase in ribosome synthesis capacity to enable optimum reproduction rate and make best use of available nutrients.
Read the study at Babraham Institute website.
| |
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
- USDA FAS Releases GAIN Reports on Agri-biotech for Several Countries
- Thomson Explains Slow Adoption of GM Crops in Africa
- Partnership to Create Second Soybean Reference Genome
- USDA APHIS Releases EA and PPRA of MON 87403 for Public Comment and Review
- Factors Affecting Melon Genome Evolution Identified
- EMR Scientists Find Genetic Markers of Wilt Resistance Genes in Strawberry
- Two GM Crops Endorsed for Import Approval in the EU
-
Research Highlights
- Thanatin Confers Partial Resistance against Aspergillus Infections in Maize
- Transgenic Wheat Expressing Avidin Gene Shows Resistance to Wheat Weevil
- Dwarf Phenotype Enables Growth of More Plant Factories in a Given Space
-
Beyond Crop Biotech
- Self-limiting Gene Controls Invasive Moth Sans Pesticides
- Yeast Responds to the Environment by Optimizing its Genome
-
Announcements
- International Conference on Advances in Bioprocess Engineering and Technology
-
Resources
- Infographics: Crop Modification Techniques
- Infographics: Chemical Crop Protection and GM Seed Industries in 2014
-
Read the latest: - Biotech Updates (December 11, 2024)
- Gene Editing Supplement (December 11, 2024)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet