中国畜牧兽医 ›› 2024, Vol. 51 ›› Issue (6): 2253-2260.doi: 10.16431/j.cnki.1671-7236.2024.06.001

• 生物技术 • 上一篇    

北京鸭DHAV-3抗性与易感品系的脂质轮廓鉴定与分析

常卓1, 梁素芸2, 王帅钦2, 杨宇泽1, 薛振华1, 赵春颖1, 林逍然1, 路永强1, 侯水生2   

  1. 1. 北京市畜牧总站, 北京 100101;
    2. 中国农业科学院北京畜牧兽医研究所, 北京 100193
  • 收稿日期:2023-12-21 发布日期:2024-06-01
  • 通讯作者: 梁素芸, 侯水生 E-mail:liangsu_yun@163.com;houss@263.net
  • 作者简介:常卓,E-mail:changzhuo@vip.qq.com。
  • 基金资助:
    国家现代农业产业技术体系建设专项资金(CARS-42)

Identification and Analysis of Lipid Profile in DHAV-3 Resistant and Susceptible Lines of Pekin Duck

CHANG Zhuo1, LIANG Suyun2, WANG Shuaiqin2, YANG Yuze1, XUE Zhenhua1, ZHAO Chunying1, LIN Xiaoran1, LU Yongqiang1, HOU Shuisheng2   

  1. 1. Beijing General Station of Animal Husbandry, Beijing 100101, China;
    2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2023-12-21 Published:2024-06-01

摘要: 【目的】试验旨在研究抗鸭甲肝病毒基因3型(Duck hepatitis A virus genotype 3,DHAV-3)的北京鸭专门化品系(即抗性品系Z7-R)与DHAV-3易感品系(Z7-S)的脂质代谢轮廓,并筛选品系间差异脂质标志物。【方法】选取2日龄Z7系DHAV-3抗性北京鸭和易感北京鸭各6只,采集血液与肝脏组织,进行血液生化指标测定与基于液相色谱-质谱联用技术(LC-MS)的非靶向肝脏脂质组检测。采用t检验、偏最小二乘分析(PLS-DA)和差异倍数(FC)综合筛选品系间显著差异脂质。【结果】Z7-R系北京鸭血浆总胆固醇、低密度脂蛋白和磷脂含量均显著高于Z7-S系(P<0.05)。脂质组分析共鉴定到1 532个脂质代谢物,涵盖了脂肪酰(FA)、甘油酯(GL)、甘油磷脂(GP)、鞘脂(SP)、固醇脂(ST)5个大类。共筛选到84个显著差异脂质,其中甘油酯类主要为甘油三酯(TG),且Z7-R系含量均高于Z7-S系(P<0.05);甘油磷脂类主要为溶血磷脂酰胆碱(LPC)、溶血磷脂酰乙醇胺(LPE)和游离脂肪酸(FFAs),且Z7-R系含量均低于Z7-S系(P<0.05)。共筛选到10个显著差异的脂质显著富集到鞘脂代谢、甘油磷脂代谢、甘油酯代谢、亚油酸代谢和α-亚麻酸代谢通路中。【结论】脂质组学技术可用于区分北京鸭Z7-R系与Z7-S系,筛选到的10个显著差异脂质物质可作为潜在的DHAV-3抗性与易感性状相关生物标志物。

关键词: 北京鸭; 鸭甲肝病毒基因3型; 脂质组; 代谢

Abstract: 【Objective】 The purpose of this experiment was to study the lipid metabolism profiles of the resistant Pekin duck line (Z7-R) and susceptible line (Z7-S) of Pekin ducks to Duck hepatitis A virus genotype 3 (DHAV-3),and investigate lipid markers with significant differences between this two lines.【Method】 6 2-day-old Z7-R and 6 2-day-old Z7-S Pekin ducks were selected and their blood and liver tissues were collected for blood biochemical index determination and non-targeted liver lipidomics detection based on liquid chromatography-mass spectrometry (LC-MS).t-test,partial least squares-discriminant analysis (PLS-DA) and fold change (FC) were used to comprehensively screen the significantly different lipids between the two lines.【Result】 The contents of total cholesterol,low density lipoprotein and phospholipid in the plasma of Z7-R Pekin duck were significantly higher than those in Z7-S (P<0.05).A total of 1 532 lipid metabolites were identified by lipidome analysis,covering five major categories:Fatty acyl (FA),glycerolipids (GL),glycerophospholipids (GP),sphingolipids (SP),and sterol lipids (ST).A total of 84 significantly different lipids were identified.Triglyceride (TG) was the main component in glycerolipids,and the content of TG in Z7-R Pekin duck was significantly higher than that in Z7-S (P<0.05).Lysophosphatidylcholine (LPC),lysophosphatidylethanolamine (LPE) and free fatty acid (FFAs) were the significantly different glycerophospholipids,and the contents of these lipids in Z7-R Pekin duck were significantly lower than those in Z7-S (P<0.05).A total of 10 significantly different lipids were screened and they were significantly enriched in sphingolipid metabolism,glycerophospholipid metabolism,glyceride metabolism,linoleic acid metabolism and α-linolenic acid metabolism.【Conclusion】 Lipidomics technology could be used to differentiate Z7-R lines from Z7-S lines of Beijing ducks.The 10 significantly different lipids could be used as potential biomarkers related to DHAV-3 resistant and susceptible traits.

Key words: Pekin duck; DHAV-3; lipidomics; metabolism

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