Research group

Molecular Physiology and Biotechnology of Marine Organisms

We investigate the molecular basis of gamete formation and function in fish and other marine organisms

Our main research lines are:

  1. Comparative evolutionary physiology of water channels (aquaporins)
    We study the structure, evolution and molecular function of aquaporins to elucidate their biological functions in male and female gametes and osmoregulatory organs, as well as their molecular and functional interactions with other membrane and regulatory proteins (e.g. ion channels and intracellular protein trafficking factors).

  2. Molecular basis of sperm differentiation and maturation (spermiogenesis)
    Our objective is to uncover key endocrine, molecular and cell regulatory mechanisms of spermiogenesis that are vital for fish fertility. Our ultimate goal is the identification of novel biomarkers of sperm quality, as well as the development of biotechnologies to ameliorate reproductive obstacles of cultured marine fishes.

  3. Cryopreservation of highly yolked (megalecithal) fish oocytes and embryos
    Species producing megalecithal gametes and embryos (fish, amphibians, reptiles and birds) represent ~99% of the world’s vulnerable or endangered vertebrates. However, their long-term conservation through cryopreservation has yet to be achieved. We are developing biotechnological innovations to facilitate freeze-tolerance in fish oocytes and embryos to enhance their cryosurvival.

In our studies, we employ a broad repertoire of multidisciplinary approaches including structure-function assays combined with cell and molecular biology methods, high-throughput genomics and transcriptomics, proteomics, and phylogenomics.

Most relevant information

    Highlights

     

    The group has been part of the Fish Physiology and Genomics group recognized and funded as “Consolidated Research Group” (SGR) by the Government of Catalonia (2005-2021), being the coordinator of the last SGR Fish Molecular Physiology, Epigenetics and Biotechnology (BIOAQUA) (2023-2025). 

    The group collaborates or has collaborated with different aquaculture and Biotech companies in Spain.

    Joan Cerdà is Co-Editor-in-Chief of the journal Molecular Genetics and Genomics (Springer) since 2021.

    François Chauvigné is Associated Editor of the international journal Frontiers in Endocrinology since 2018.

    Publications
    • López-Fortún, Noelia; Roig-Genovés, Jose Vicente; Giménez, Ignacio; Cerdà, Joan; Chauvigné, François;
      2025

      Gonadotropins differentially regulate testicular cell adhesion and junctional complexes during flatfish spermiogenesis through the oxytocin and relaxin signaling pathways

      10.3389/fcell.2025.1574690
    • Castro-Arnau, Júlia; Chauvigné, François; González, Asier; Finn, Roderick N.; Carrascal, Montserrat; Cerdà, Joan;
      2025

      Post-testicular spermatozoa of a marine teleost can conduct de novo cytoplasmic and mitochondrial translation

      10.1016/j.isci.2024.111537
    • Castro-Arnau, Júlia; Chauvigné, François; Toft-Bertelsen, Trine L.; Finn, Roderick N.; MacAulay, Nanna; Cerdà, Joan;
      2024

      Aqp4a and Trpv4 mediate regulatory cell volume increase for swimming maintenance of marine fish spermatozoa

      10.1007/s00018-024-05341-w
    • Ferré, Alba; Chauvigné, François; Vlasova, Anna; Norberg, Birgitta; Bargelloni, Luca; Guigó, Roderic; Finn, Roderick N.; Cerdà, Joan;
      2023

      Functional Evolution of Clustered Aquaporin Genes Reveals Insights into the Oceanic Success of Teleost Eggs

      10.1093/molbev/msad071

    Research lines