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Article
Open AccessDevelopment of a chub mackerel with less-aggressive fry stage by genome editing of arginine vasotocin receptor V1a2
Genome editing is a technology that can remarkably accelerate crop and animal breeding via artificial induction of desired traits with high accuracy. This study aimed to develop a chub mackerel variety with re...
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Article
Molecular characterization of kisspeptin 2 dodecapeptide in sixteen species of Scombridae
Kisspeptin is an endogenous ligand that modulates gonadotropin-releasing hormone (GnRH) secretion and plays an essential role in the reproduction of mammals. In fish, two subtypes of kiss genes (kiss1 and kiss2),...
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Article
Open AccessTag attachment success can be temperature dependent: a case study of the chub mackerel Scomber japonicus
Electronic tags are increasingly used in the studies of fish, but the attachment of electronic tags may affect their behaviour and physiology. While a number of studies have shown effects of electronic tags on...
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Article
Open AccessSteroidogenic and maturation-inducing potency of native gonadotropic hormones in female chub mackerel, Scomber japonicus
The gonadotropins (GtHs), follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are produced in the pituitary gland and regulates gametogenesis through production of gonadal steroids. However, respec...
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Article
Open AccessIncreased expression of kisspeptin and GnRH forms in the brain of scombroid fish during final ovarian maturation and ovulation
Kisspeptins (Kiss) are prime players in the control of reproductive function through their regulation of gonadotropin-releasing hormone (GnRH) expression in the brain. The experimental scombroid fish, chub mac...
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Article
Changes in the expression of pituitary gonadotropin subunits during reproductive cycle of multiple spawning female chub mackerel Scomber japonicus
The endocrine regulation of reproduction in a multiple spawning fish with an asynchronous-type ovary remains largely unknown. The objectives of this study were to monitor changes in the mRNA expression of thre...
