1. Water temperature effects on embryonic development and GnRH-like expression in kisslip cuttlefish (Sepia lycidas) hinting the potential role of GnRH-like peptide.
- Author
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Murata R, Kubo U, Yoshida S, Mushirobira Y, and Soyano K
- Subjects
- Animals, Female, Male, Gene Expression Regulation, Developmental, Water metabolism, Sepia metabolism, Sepia embryology, Sepia growth & development, Embryo, Nonmammalian metabolism, Gonads metabolism, Gonads growth & development, Gonadotropin-Releasing Hormone metabolism, Temperature, Embryonic Development
- 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., Competing Interests: Declaration of competing interest Ryosuke Murata reports financial support was provided by Japan Society for the Promotion of Science (JSPS)., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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