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An Introduction to Saccharomyces cerevisiae10:48

An Introduction to Saccharomyces cerevisiae

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Saccharomyces cerevisiae (commonly known as baker’s yeast) is a single-celled eukaryote that is frequently used in scientific research. S. cerevisiae is an attractive model organism due to the fact that its genome has been sequenced, its genetics are easily manipulated, and it is very easy to maintain in the lab. Because many yeast proteins are similar in sequence and function to those found in other organisms, studies performed in yeast can help us to determine how a particular gene or...
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We present a protocol for lamella preparation of plunge frozen biological specimens by cryo-focused ion beam micromachining for high-resolution structural studies of macromolecules in situ with cryo-electron tomography. The presented protocol provides guidelines for the preparation of high-quality lamellae with high reproducibility for structural characterization of macromolecules inside the Saccharomyces...
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Cycloheximide Chase Analysis of Protein Degradation in Saccharomyces cerevisiae09:05

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Protein abundance reflects the rates of both protein synthesis and protein degradation. This article describes the use of cycloheximide chase followed by western blotting to analyze protein degradation in the model unicellular eukaryote, Saccharomyces cerevisiae (budding...
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Here is a protocol to identify genetic interactions through an increased copy number suppressor screen in Saccharomyces cerevisiae. This method allows researchers to identify, clone, and test suppressors in short-lived yeast mutants. We test the effect of the copy number increase of SIR2 on lifespan in an autophagy null...
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Saccharomyces cerevisiae Yeast as a Model Organism
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Multicellular group formation in Saccharomyces cerevisiae.

R M Fisher1, B Regenberg1

  • 1Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark.

Proceedings. Biological Sciences
|September 5, 2019
PubMed
Summary
This summary is machine-generated.

Saccharomyces cerevisiae offers a unique model for studying early multicellularity evolution. Its ability to form groups clonally or via aggregation, influenced by flocculins, aids research into cooperation and conflict in developing multicellular organisms.

Keywords:
adhesionmajor evolutionary transitionmulticellularityyeast

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Area of Science:

  • Evolutionary biology
  • Developmental biology
  • Microbial genetics

Background:

  • Multicellularity evolves through clonal development or aggregation, impacting cell relatedness and cooperation.
  • Studying obligate multicellular organisms hinders disentangling factors favoring cooperation.
  • Saccharomyces cerevisiae provides a tractable model for early multicellularity evolution.

Purpose of the Study:

  • To utilize Saccharomyces cerevisiae as a model organism for investigating the initial stages of multicellularity evolution.
  • To propose a framework for predicting yeast multicellular phenotypes using social evolution theory.
  • To highlight Saccharomyces cerevisiae's utility in addressing open questions in multicellularity research.

Main Methods:

  • Reviewing current knowledge of multicellularity in Saccharomyces cerevisiae.
  • Applying social evolution theory to predict multicellular phenotypes.
  • Leveraging flocculins as key determinants of group formation in yeast experiments.

Main Results:

  • Saccharomyces cerevisiae forms multicellular groups via both clonal development and aggregation.
  • Flocculins in yeast dictate the mode of multicellular group formation.
  • Experimental manipulation of flocculins allows investigation of cooperation and conflict.

Conclusions:

  • Saccharomyces cerevisiae is an ideal model for studying the evolution of multicellularity due to its versatile group formation mechanisms.
  • The study proposes a theoretical framework to guide experimental research on yeast multicellularity.
  • Further research using Saccharomyces cerevisiae can elucidate fundamental principles of multicellular evolution and cooperation.