Advances in Bivalve Aquaculture

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Sustainable Aquaculture".

Deadline for manuscript submissions: 31 January 2025 | Viewed by 535

Special Issue Editors


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Guest Editor
School of Marine Sciences, Ningbo University, Ningbo 315211, China
Interests: polyunsaturated fatty acids; lipids; nutrition; microalgae; shellfish
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
Interests: shellfish; light; biological rhythms; behavior; aquaculture
Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo, China
Interests: mollusk; genetic variation; molecular genetics; breeding; aquaculture

E-Mail Website
Guest Editor
College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
Interests: fish and shellfish immunology; neuroendocrine immunology; marine animal physiology; stress physiology

Special Issue Information

Dear Colleagues,

Bivalves are important aquaculture species worldwide, with significant economic, nutritional, and environmental benefits. There is great potential for the development of the bivalve aquaculture industry. Efficiency, intensiveness, and quality are the key directions for the development of bivalve aquaculture.

Bivalve aquaculture mainly involves aspects such as nutritional requirements and quality, disease prevention and control, immunity, genetic improvement and breeding, and the construction and improvement of aquaculture models. This Special Issue “Advances in Bivalve Aquaculture” welcomes research involved in, but not limited to, the areas mentioned above, aiming to provide a platform for academic exchanges to promote the quality and efficiency of the bivalve industry. We warmly welcome colleagues to contribute to this topic.

Dr. Zhaoshou Ran
Dr. Xiaolong Gao
Dr. Sheng Liu
Dr. Xueshu Zhang
Guest Editors

Manuscript Submission Information

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Keywords

  • nutrients
  • behavior
  • breeding
  • immunology
  • feed
  • fatty acids
  • disease
  • molecular genetics

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Published Papers (1 paper)

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Research

12 pages, 3377 KiB  
Article
Discovery of Methyl-End Desaturases in Razor Clam Sinonovacula constricta (Lamarck 1818) and Their Spatio-Temporal Expression
by Xinyi Chen, Xiang Fang, Dongzi Yang, Jilin Xu and Zhaoshou Ran
Fishes 2024, 9(9), 359; https://doi.org/10.3390/fishes9090359 - 13 Sep 2024
Viewed by 240
Abstract
Clarifying the biosynthetic pathway of the long-chain polyunsaturated fatty acids (LC-PUFA) of Sinonovacula constricta is essential for utilizing its LC-PUFA resources. Methyl-end (or “ωx”) desaturases are the rate-limiting enzymes in LC-PUFA biosynthesis, catalyzing the conversion of oleic acid to linoleic acid (LA) or [...] Read more.
Clarifying the biosynthetic pathway of the long-chain polyunsaturated fatty acids (LC-PUFA) of Sinonovacula constricta is essential for utilizing its LC-PUFA resources. Methyl-end (or “ωx”) desaturases are the rate-limiting enzymes in LC-PUFA biosynthesis, catalyzing the conversion of oleic acid to linoleic acid (LA) or LA to α-linolenic acid. However, their presence in S. constricta remains uncertain. Herein, we identified two ωx desaturase-like genes within the S. constricta genome, both located on the ninth chromosome possibly due to genome duplication. These genes exhibited nearly identical sequences, differing by only one amino acid, and each encodes a 354-residue peptide with typical ωx desaturase characteristics. Phylogenetic analysis grouped these putative ωx desaturases with similar enzymes from other invertebrates. However, when heterologously expressed in yeast, they exhibited no detectable desaturation activity. This suggests either non-functionality in yeast or extremely subtle desaturation abilities. Additionally, both genes displayed the highest expression in the inhalant siphon rather than in digestive tissues and exhibited relatively high expression throughout the development stages of S. constricta, except in zygotes. These findings suggest potential in vivo functional roles for these ωx desaturases in S. constricta. Collectively, these results significantly enrich our understanding of the repertoire of LC-PUFA biosynthetic enzymes in this important bivalve species. Full article
(This article belongs to the Special Issue Advances in Bivalve Aquaculture)
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