Reproductive Physiology and Genetics in Aquatic Animals

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Aquatic Animals".

Deadline for manuscript submissions: 31 March 2027 | Viewed by 1517

Editor


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Guest Editor
Aquaculture Program, Centro de Investigaciones Biologicas Del Noroeste, La Paz, Mexico
Interests: genetics; reproduction; endocrinology; physiology; morphology; aquaculture

Special Issue Information

Dear Colleagues,

The control of reproduction in aquatic animals in captivity by stimulating courtship and mating behavior, and obtaining viable spawns all year round with a high survival of progeny, is one of the main achievements in not just aquaculture production, but also in ecology. This pertains to those aquatic species whose natural populations have declined or are in need of restoration following their displacement from their natural habitats.

In this context, reproductive physiology and genetics are linked to pursue a functional, healthy, and selected broodstock.

Even when there is vast information on the influences of environmental reproductive cues and genetic influences on the hypothalamic–pituitary–gonadal (HPG) axis in fish, the neurosecretory X-organ/sinus gland complex in decapods, and the optic gland that signals many physiological pathways in octopuses, many commercial species still require reproductive research, and many other marine and freshwater animals are potentially interesting to reproduce in captivity.

We are pleased to invite you to contribute with a research article or a review for this Special Issue of Animals to improve reproduction management, the induction of maturation in those species that are difficult to reproduce in captivity, sex determination and sex control studies, and the selection of traits that can lead to faster growth rates, better survival, genotypes capable of digesting different food sources, among others, highlighting the importance of reproductive physiology and genetics in aquatic animals.

In this Special Issue, original research articles and reviews are welcome. Research areas may include the following:

Reproduction, Endocrinology, Physiology, Environmental cues, Gametogeneis, Meiosis, Mitosis, Egg quality, Embryogenesis, Larval development, Morphology, Transcriptomics, Proteomics, Gene editing, Broodstock selection (Quantitative and Molecular genetics), Broodstock variability (Heterocigosity), Epistasis, Chromosme manipulations (Triploydy, Tetraploidy), Associated trait loci (Quantitative traits loci and Single Nucleotide Polimorphisms), Sex determination, Sex control, Sex change  (Hermaphrodyte, Protogyneous and Protandric animals), Sex reversal, Monosex culture.

I look forward to receiving your contributions.

Dr. Rafæl Campos-Ramos
Guest Editor

Manuscript Submission Information

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Keywords

  • aquatic animals
  • reproduction
  • endocrinology
  • physiology
  • genetics

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Published Papers (1 paper)

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Research

18 pages, 4309 KB  
Article
Comprehensive Analysis of Metabolome and Transcriptome Reveals Physiological Processes Related to Larval Development of Barnacles (Megabalanus volcano)
by Zewen Zheng, Duo Chen, Ziquan Zhou, Siwen Peng, Xuehui Li, Zhenyi Zhuang, Haiyan Yao, Xiaozhen Rao, Ting Xue and Gang Lin
Animals 2026, 16(3), 413; https://doi.org/10.3390/ani16030413 - 28 Jan 2026
Viewed by 1055
Abstract
Background: Barnacles are important marine fouling organisms, and their complex life cycle involves key metamorphic nodes from nauplius to cyprid larvae and then to sessile adults. However, the molecular mechanisms underlying their larval development remain poorly understood. Metabolomics and transcriptomics are powerful tools [...] Read more.
Background: Barnacles are important marine fouling organisms, and their complex life cycle involves key metamorphic nodes from nauplius to cyprid larvae and then to sessile adults. However, the molecular mechanisms underlying their larval development remain poorly understood. Metabolomics and transcriptomics are powerful tools for exploring biological development pathways and regulatory networks. Methods: We employed non-targeted metabolomics and transcriptomics to analyze three key developmental stages of embryonic stage, nauplius stage, and cyprid stage. Differential metabolites were screened using fold change (FC), p-value, and variable importance in projection (VIP) values, while DEGs were identified with adjusted p-value and |log2(fold change)| criteria. WGCNA was used to construct gene co-expression networks, and qRT-PCR validated RNA-seq results. Results: A total of 3683 metabolites were identified, with the bile secretion pathway serving as a core regulatory pathway throughout early development. Transcriptomic analysis identified 7234 DEGs, which were clustered into four modules corresponding to different developmental stages. Key pathways such as chitin metabolism, and linoleic acid metabolism were significantly enriched, and qRT-PCR confirmed the reliability of RNA-seq data. Conclusions: This study reveals the metabolic and molecular regulatory mechanisms underlying the early development of M. volcano, highlighting stage-specific metabolic characteristics and core gene modules. The findings provide a theoretical basis for understanding barnacle developmental adaptation strategies and offer potential targets for the development of novel antifouling agents. Full article
(This article belongs to the Special Issue Reproductive Physiology and Genetics in Aquatic Animals)
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