| Title: | Asymmetric mating behavior of isogamous budding yeast |
| Author(s): | Anders A; Colin R; Banderas A; Sourjik V; |
| Address: | "Max Planck Institute for Terrestrial Microbiology, Marburg, Germany. LOEWE Research Center for Synthetic Microbiology (SYNMIKRO), Marburg, Germany. Max Planck Institute for Terrestrial Microbiology, Marburg, Germany. alvaro.banderas@curie.fr victor.sourjik@synmikro.mpi-marburg.mpg.de. Laboratoire Physico Chimie Curie, CNRS UMR168, Institut Curie, Paris, France" |
| ISSN/ISBN: | 2375-2548 (Electronic) 2375-2548 (Linking) |
| Abstract: | "Anisogamy, the size difference between small male and large female gametes, is known to enable selection for sexual dimorphism and behavioral differences between sexes. Nevertheless, even isogamous species exhibit molecular asymmetries between mating types, which are known to ensure their self-incompatibility. Here, we show that different properties of the pheromones secreted by the MATa and MATalpha mating types of budding yeast lead to asymmetry in their behavioral responses during mating in mixed haploid populations, which resemble behavioral asymmetries between gametes in anisogamous organisms. MATa behaves as a random searcher that is stimulated in proportion to the fraction of MATalpha partner cells within the population, whereas MATalpha behaves as a short-range directional distance sensor. Mathematical modeling suggests that the observed asymmetric responses can enhance efficiency of mating and might thus provide a selective advantage. Our results demonstrate that the emergence of asymmetric mating behavior did not require anisogamy-based sexual selection" |
| Keywords: | Cell Communication Germ Cells Haploidy Reproduction *Saccharomycetales; |
| Notes: | "MedlineAnders, Alexander Colin, Remy Banderas, Alvaro Sourjik, Victor eng Research Support, Non-U.S. Gov't 2021/06/13 Sci Adv. 2021 Jun 11; 7(24):eabf8404. doi: 10.1126/sciadv.abf8404. Print 2021 Jun" |
