通过脂质组学确定非亲代和亲代馁鳃鱼(Symphysodon haraldi)皮肤粘液中脂质谱的性别差异

IF 2.1 3区 农林科学 Q2 FISHERIES Fishes Pub Date : 2024-01-07 DOI:10.3390/fishes9010027
Shichen Zhao, Bin Wen, Hua Liang, Jianzhong Gao, Zai-Zhong Chen
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引用次数: 0

摘要

铁饼鱼(Symphysodon spp.)有一种独特的亲鱼护理策略,即鱼苗孵化后以亲鱼的皮肤粘液为食。在此,脂质组学被用来比较雄性或雌性铁饼鱼在亲鱼和非亲鱼照料期间的皮肤粘液脂质特征。通过多变量统计分析,发现亲鱼和非亲鱼雌性铁饼之间以及亲鱼和非亲鱼雄性铁饼之间存在明显的差异。在亲鱼和非亲鱼阶段的雌性铁饼之间的比较中,共观察到 107 种差异表达脂质(DELs),其中 23 种在亲鱼照料期间含量增加。雄性铁饼共发现了 108 个差异表达脂质(DEL),其中 46 个在亲鱼照料期间含量增加。主要的DELs是磷脂酰乙醇胺和磷脂酰肌醇,它们主要参与花生四烯酸和鞘脂代谢途径。此外,通过比较亲代雌雄铁饼,我们发现有47个DEL参与甘油磷脂代谢途径。在亲代雌鱼的皮肤粘液中,二甘油酯的含量较高,而在亲代雄鱼的皮肤粘液中,磷脂的含量较高。我们的研究结果揭示了铁饼鱼在亲鱼照料期间皮肤粘液脂质的变化,以及亲鱼之间的性别差异。
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Sex-Dependent Lipid Profile Differences in Skin Mucus between Non-Parental and Parental Discus Fish (Symphysodon haraldi) Determined by Lipidomics
Discus fish, Symphysodon spp., have a unique parental care strategy where the fry feed on their parents’ skin mucus after hatching. Here, lipidomics was employed to compare the skin mucus lipid profiles of male or female discus fish during parental and non-parental care. By multivariate statistical analysis, clear separations were found between parental and non-parental female and between parental and non-parental male discus. In the comparison between female discus in the parental and non-parental stages, a total of 107 differentially expressed lipids (DELs) were observed, of which 23 showed increased levels during parental care. For male discus, a total of 108 DELs were found, of which 46 displayed increased levels during parental care. The main DELs were phosphatidyl ethanolamine and phosphatidylinositol, mainly involved in arachidonic acid and sphingolipid metabolism pathways. Further, by comparing parental male and female discus, we found 47 DELs involved in the glycerophospholipid metabolism pathway. Diglyceride showed a higher concentration in the skin mucus of parental females, while phospholipids showed a higher level in that of parental males. Our results revealed changes in the skin mucus lipid profiles of discus fish during parental care, as well as sex-dependent differences between parental fish.
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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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