I. Yeast Sex: An Introduction
II. How to Shmoo and Find a Mate
Part II: How to Shmoo and Find a Mate
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Murray begins his talk by explaining why he studies sex in yeast not humans. He describes the yeast life cycle including the decision to bud in the absence of a mate, or to shmoo and mate in the presence of yeast of the correct mating type. In either case, the cells must switch from uniform to non-uniform or polarized growth. Mating cells must also recognize a chemical signal and move towards a target cell. Murray explains the molecular details known to underlie the response to the chemical signal. In Part 2, Murray describes experiments done in his lab to learn more about mating in yeast. These experiments provide an example of how models are proposed, how experiments are designed to discriminate between the models and how further experiments may be needed to address questions raised by the models.
Andrew Murray received his undergraduate education at Clare College, Cambridge and his Ph.D. from Harvard Medical School. He then spent 15 years at the University of California, San Francisco as a post-doctoral fellow and faculty member before returning to Harvard. Currently, Murray is a Professor of Molecular and Cellular Biology and co-director of the FAS Center for Systems Biology at Harvard University. Murray’s lab uses budding yeast to investigate the general principles of how cells transmit genetic information during cell division and mating and how they evolve in response to selective pressure. Members of his lab use math and physics, as well as biology, to test possible models.
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