不同发育阶段大口青铜鳕(Coreius guichenoti)卵巢脂质组成的特征

IF 2.1 3区 农林科学 Q2 FISHERIES
Fishes Pub Date : 2024-07-22 DOI:10.3390/fishes9070291
Jian Zhu, Nanjun Hu, Yao Xiao, Xiaohong Lai, Lingjiao Wang, Yufeng Song
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引用次数: 0

摘要

大口铜钱鱼的自然种群数量急剧下降,已被列为中国的保护物种。由于大口铜钱鱼卵巢发育在Ⅲ期至Ⅳ期经常出现障碍,人工繁殖受到限制。由于脂质是卵巢发育的关键因素,本研究旨在描述大口铜钱鱼不同发育阶段的卵巢脂质特征。利用 UPLC-MS/MS,在大口铜钱鱼的卵巢中鉴定出属于 46 个亚类的 1353 种脂质。结果表明,甘油脂和甘油磷脂是卵巢发育过程中的主要脂类。溶血磷脂酰胆碱(LPC)、磷脂酰胆碱(PC)和磷脂酰丝氨酸(PS)是卵巢发育的关键磷脂,从第三阶段到第四阶段明显减少。这可能是导致大口青铜鳕卵巢发育障碍的主要原因。同时,富集分析表明,脂质代谢物存在于不同的卵巢发育阶段。甘油磷脂、亚油酸和亚麻酸代谢物在第四阶段明显富集。该研究展示了卵巢脂质组成的全貌,并发现磷脂可能是卵巢发育的限制因素;这些发现为大口铜钱鱼的人工繁殖和放流提供了理论依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Characterization of Ovarian Lipid Composition in the Largemouth Bronze Gudgeon (Coreius guichenoti) at Different Development Stages
The largemouth bronze gudgeon has experienced a sharp drop in its natural population and has been listed as a protected species in China. The frequent occurrence of ovarian development obstruction from stage III to IV has restricted artificial propagation. Due to lipids being a crucial factor for ovarian development, this study aimed to characterize the ovarian lipid profile at different development stages in largemouth bronze gudgeons. Using UPLC-MS/MS, 1353 lipids belonging to 46 subclasses were identified in ovaries from largemouth bronze gudgeons. The results showed that glycerolipids and glycerophospholipids were the dominant lipids during ovarian development. Lysophosphatidyl choline (LPC), phosphatidyl choline (PC), and phosphatidylserine (PS), as the crucial phospholipids for ovarian development, were significantly reduced from stage III to IV. This may be the main cause of ovarian development obstruction for largemouth bronze gudgeons. Meanwhile, the enrichment analysis revealed that lipid metabolites are present at different ovarian development stages. Glycerophospholipid, linoleic acid, and linolenic acid metabolism were significantly enriched at stage IV. This study shows the complete picture of the ovarian lipid composition profile, and also discovers that phospholipids may be the limiting factor for ovarian development; these findings offer a theoretical basis for the artificial propagation and release of the largemouth bronze gudgeon.
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来源期刊
Fishes
Fishes Multiple-
CiteScore
1.90
自引率
8.70%
发文量
311
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