Research Team Creates Detailed Map of Genetic Evolution of Brewer's YeastApril 25, 2018
A team of researchers from several institutions in France has created a detailed map of the genetic evolution of brewer's yeast (Saccharomyces cerevisiae), the yeast used in making bread, wine, and beer. In their paper published in the journal Nature, the researchers note that S. cerevisiae has been used extensively by humans for a very long time. It is also widely used by research scientists because its genome has been sequenced and can be easily exploited. In this new effort, the researchers sought to learn more about yeast's history by studying its genetic makeup.
The researchers collected yeast samples from around the globe and found that yeast in different parts of the world has changed over time. This is partially due to natural events and partially due to human intervention. Taking a genomic global survey of yeast allowed the researchers to create a map of the evolution of the fungus. The work consisted of performing whole-genome sequencing on 1,011 samples of yeast, which yielded 1,625,809 high-quality reference-based SNPs.
The researchers report that theories of an out-of-China migration of the yeast appear to be true. They also found that yeast has undergone extensive change due to human intervention related to fermentation for making beer, wine, and sake. They noted also that the number of chromosome sets (ploidy) in the yeast cells had an impact on fitness across all of those species tested. They further noted that those with a diploid state appeared to have an advantage over other ploidy types. And they found that yeast has suffered from a loss of heterozygosity, in which there are two distinct alleles of a given gene present. They suggest this has likely led to the wide variation between the samples they observed.
For more information, read the open access paper in Nature.
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural 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
- FAO Calls for Global Coordination for a Bioeconomy that Leaves No One Behind
- CIMMYT Scientist Uses Native Maize Varieties to Find Novel Traits for Breeding
- A Scientist Works to Increase Water Saving Potential of Crops
- Earth BioGenome Project Holds Solutions for Agriculture's Future
- Agri-Biotech Project Featured in Farm Tourism Field Immersion in PH
- Fostering Innovation Key for a Healthy, Wealthy and Food-secure Commonwealth
- EuropaBio: EU Must Reinstate Science in GMO Safety Assessment; Stop Unneeded Animal Testing
- EFSA Publishes Scientific Opinion on Three‐Event Stack Cotton GHB614 × LLCotton25 × MON 15985
- Why Rice Planthoppers Do Not Prefer Bt Rice Plants
- Transformation of Encoded GA20-oxidase Gene in Tobacco
- OsPK2 Gene Involved in Starch Synthesis and Grain Filling in Rice
Plant Breeding Innovations
- Dominant Allele Restricts Nodulation of Rhizobium Species in Soybean
- Researchers Perform Targeted Mutation and Gene Replacement in Tomato
- Application of CRISPR-Cas9 Genome Editing in Wild Strawberry
- CRISPR Reveals the Role of SlMPK20 Protein in Tomato Pollen Development
Beyond Crop Biotech
- Research Team Creates Detailed Map of Genetic Evolution of Brewer's Yeast
- Scientists Develop Insulin-Deficient Pigs for Diabetes Research
- 2018 BIO International Convention
Read the latest:
- Crop Biotech Update (August 17, 2022)
- Genome Editing Supplement (August 10, 2022)
- Gene Drive Supplement (July 27, 2022)
Subscribe to CBU: