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Published on: August 8, 2017
High-Throughput Screening to Identify Regulators of Meiosis-Specific Gene Expression in Saccharomyces cerevisiae
1Department of Biology, Technion-Israel Institute of Technology, Technion City, Haifa, 32000, Israel. ykassir@tx.technion.ac.il.
Abstract:
Meiosis and gamete formation are processes that are essential for sexual reproduction in all eukaryotic organisms. Multiple intracellular and extracellular signals feed into pathways that converge on transcription factors that induce the expression of meiosis-specific genes. Once triggered the meiosis-specific gene expression program proceeds in a cascade that drives progress through the events of meiosis and gamete formation. Meiosis-specific gene expression is tightly controlled by a balance of positive and negative regulatory factors that respond to a plethora of signaling pathways. The budding yeast Saccharomyces cerevisiae has proven to be an outstanding model for the dissection of gametogenesis owing to the sophisticated genetic manipulations that can be performed with the cells. It is possible to use a variety selection and screening methods to identify genes and their functions. High-throughput screening technology has been developed to allow an array of all viable yeast gene deletion mutants to be screened for phenotypes and for regulators of gene expression. This chapter describes a protocol that has been used to screen a library of homozygous diploid yeast deletion strains to identify regulators of the meiosis-specific IME1 gene.
Insights
This study identifies regulators of meiosis-specific gene expression in yeast. Researchers screened gene deletion mutants to find factors controlling the IME1 gene, crucial for gamete formation.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- Meiosis and gamete formation are fundamental to eukaryotic sexual reproduction.
- Gene expression during these processes is regulated by complex signaling pathways.
- The budding yeast Saccharomyces cerevisiae is a powerful model for studying gametogenesis due to its genetic tractability.
Purpose of the Study:
- To describe a protocol for screening yeast deletion mutants.
- To identify novel regulators of the meiosis-specific IME1 gene.
- To understand the genetic control of gametogenesis in Saccharomyces cerevisiae.
Main Methods:
- Utilized high-throughput screening of a library of homozygous diploid yeast deletion strains.
- Employed selection and screening methods to identify gene functions.
- Focused on identifying regulators of the meiosis-specific IME1 gene.
Main Results:
- Successfully screened a library of yeast deletion strains.
- Identified specific gene deletion mutants that regulate the IME1 gene.
- Provided a foundational protocol for future gametogenesis research.
Conclusions:
- The study successfully identified regulators of the meiosis-specific IME1 gene using a high-throughput screening approach in yeast.
- This work contributes to understanding the intricate regulatory networks governing meiosis and gamete formation.
- The described protocol facilitates further investigation into the genetic control of sexual reproduction in eukaryotes.
