Water temperature effects on embryonic development and GnRH-like expression in kisslip cuttlefish (Sepia lycidas) hinting the potential role of GnRH-like peptide.
Comp Biochem Physiol A Mol Integr Physiol
; 296: 111681, 2024 Jun 13.
Article
en En
| MEDLINE
| ID: mdl-38878879
ABSTRACT
Gonadotropin-releasing hormone (GnRH)-like peptides are multifunctional neuropeptides involved in cardiac control, early ontogenesis, and reproduction in cephalopods. However, the precise role of GnRH-like peptides in embryonic development and juvenile growth in cephalopods remains unknown. In this study, we showed that GnRH-like peptides are involved in the embryonic development of kisslip cuttlefish (Sepia lycidas). We confirmed that higher water temperatures induced early hatching. Simultaneously, we found that brain GnRH-like peptide gene expression gradually increased with increasing hatching speed. However, the rise in water temperature within a suitable range had no effect on the juvenile sex ratio or early gonadal development. Our results indicate that GnRH-like peptides may play an accelerating role in embryonic development; however, they are not involved in sex determination or early gonadal development in kisslip cuttlefish.
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MEDLINE
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Comp Biochem Physiol A Mol Integr Physiol
Asunto de la revista:
BIOLOGIA MOLECULAR
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FISIOLOGIA
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2024
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Article