My research aim to better understand molecular mechanisms underlying the sexual maturation (puberty) in fish, particularly in male. The initiation of the male gametogenesis (spermatogenesis) is an important biological process that impacts puberty onset and ultimately fish fertility. Puberty onset depends on the activation of the gonadotrope axis (GnRHs) that ultimately control the release from the pituitary of two gonadotropins named FSH and LH. Both hormones control the two main testicular functions (spermatogeneis and steroidogenesis). Spermatogeneis relies on the balance between renewal and proliferation/differentiation of germ stem cells. The role of the sexual hormones (gonadotropins and gonadotropin induced sexual steroids) in the regulation of this balance remains poorly understood.
My basic research aims to :
My applied research aims to :