“…Loligo -microseminoproteins were synthesized in female reproductive exocrine glands and embed protein in the outer tunic of egg capsules, which were regarded as pheromone to attract male fighting with nearby males ( Cummins et al, 2011 ). Vitellogenin (precursor protein of egg yolk) has been reported as a promising molecular marker (female-specific protein) for sex identification in P. anguinus and geoducks ( Kim et al, 2018 ; Gredar et al, 2019 ).…”