Lucas Marie-Orleach is a Lecturer at the University of Tours, affiliated with the Institute for Research on Insect Biology (IRBI) under the UMR CNRS 7261. His research focuses on the effects of sexual reproduction on evolution at micro- and macro-evolutionary scales, combining laboratory experiments and theoretical models in quantitative genetics, population genetics, and behavioral ecology . Affiliation: University of Tours, France Academic Rank: Lecturer Research Themes: Sexual selection, speciation, self-fertilization, social effects, environmental stress adaptation Marie-Orleach’s work explores key questions such as the quantification of sexual selection, evolutionary consequences of social interactions, and impacts of self-fertilization on speciation. His 15 most recent publications (2013–2024) span topics like mating systems, cryptic female choice, and genome-wide heterozygosity maintenance. Notably, his 2024 Cold Spring Harbor Perspectives in Biology study addresses selfing’s role in speciation, while his 2023 Science Advances paper uncovers non-Mendelian inheritance in asexual nematodes. Scientific Awards: Marie-Orleach has received multiple grants, including a 2020 Norwegian Research Council fellowship, two Swiss National Science Foundation postdoc fellowships (2017, 2015), and doctoral fellowships from the Burkhardt-Bürgin Foundation (2013) and Freiwillige Akademische Gesellschaft Basel (2013). His collaborations span institutions in Norway (University of Oslo), France (University of Rennes), and Scotland (University of St Andrews). Marie-Orleach’s research integrates experimental and theoretical approaches, emphasizing transitions between sexual systems, indirect genetic effects, and evolutionary consequences of mating behaviors.









