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| Autores principales: | , , , , , , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Biology
2026
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| Acceso en línea: | https://pubmed.ncbi.nlm.nih.gov/41594908/ |
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- Lipidomic Profiling of Dechorionated Fertilized Eggs and Egg Chorion in Three Tropical Marine Fish Species: Insights into Reproductive Physiology and Nutrition. Liu, Yi-Hong Guo, Hua-Yang Liu, Bao-Suo Zhu, Teng-Fei Xian, Lin Zhang, Nan Zhu, Ke-Cheng Zhang, Jian-She Zhang, Dian-Chang Broodstock nutrition is a key determinant of reproductive output in marine fishes because lipids support yolk formation, embryonic development, and early larval viability. However, the allocation of lipid classes between fertilized eggs and the egg envelope (chorion) remains poorly characterized for many tropical species. In this study, we performed a comparative lipidomic analysis of dechorionated fertilized egg contents and isolated chorion from three tropical marine fishes (, , and ) using UHPLC-Q Exactive Orbitrap MS/MS. Multivariate analyses revealed clear tissue- and species-specific lipid patterns. Dechorionated eggs were enriched in energy-storage lipids, dominated by triacylglycerols and essential polyunsaturated fatty acids, whereas chorion tissues contained higher levels of structural and signaling lipids, including phosphatidylinositols and sphingolipids. Each species exhibited a distinct lipid signature, with characterized by higher secosteroids and free fatty acids, by glycerophosphoethanolamines and phosphoinositols, and by abundant triradylglycerols. Pathway enrichment highlighted glycerophospholipid metabolism and sphingolipid signaling as prominent processes during early development. These findings clarify lipid partitioning between dechorionated fertilized egg contents and the chorion and provide a biochemical rationale for optimizing species-specific broodstock diets to enhance egg quality in tropical marine aquaculture.