“…Cultivation in vegetative culture in laboratories around the world (Haas et al ., 2020) could reduce this pressure on fertility, increasing the risk for severe mutations in the sexual signalling cascade (Haas et al ., 2020; Meyberg et al ., 2020). As male gametes need more energy and are more complex to build than female gametes (Stark et al ., 2000, 2009; Rydgren & Økland, 2003; Horsley et al ., 2011; Santos et al ., 2022), risk for mutations is higher. This cost calculation would also favour intentionally reducing male rather than female fertility, as more energy is required to constantly produce sperm cells rather than egg cells, which are waiting for fertilization, ending the gamete production cycle and starting the growth of propagules.…”