TheBioNet Seminar - The evolution of sexual differentiation
We are delighted to announce that the next seminar of TheBioNet will take place on Wednesday, 12 May, 16:00-17:00 via Zoom
Speaker: Dr. Zena Hadjivasiliou (UNIGE)
Title: The evolution of sexual differentiation
The two partners required for sexual reproduction are rarely the same. This pattern extends to species that lack sexual dimorphism yet possess self-incompatible gametes determined at mating-type regions of suppressed recombination, likely precursors of sex chromosomes. In this seminar, Zena Hadjivasiliou will argue that the interactions between cells required for sexual fusion are optimized when cells communicate asymmetrically. She will show that under selection for robust signaling between mating cells and fast mating, cells that belong to different mating type groups evolve. She will discuss how these findings can help explain other key features of the sexual lives of unicellular organisms like the number of mating types, the ability of some cells to switch their mating type identity stochastically and the emergence of sex chromosomes.
The recordings from November and December of 2020 are now online at our new youtube channel: https://www.youtube.com/channel/UCLE3zOl0UpY0Ylw8RSXwpCA
We will also post recordings of upcoming talks.
The aim of TheBioNet is to build a community of researchers working on diverse topics in mathematical and theoretical biology in Western Switzerland. Every semester we are holding seminars every two weeks where we have invited researchers from Western Switzerland working in theoretical and mathematical biology.