[1]吴香君,王钱保,赵振华,等.基于16S rRNA分析禽白血病对鸡肠道微生物菌群的影响[J].江苏农业科学,2026,54(2):193-202.
 Wu Xiangjun,et al.Study on impact of avian leukosis on chicken intestinal microbial flora based on 16S rRNA[J].Jiangsu Agricultural Sciences,2026,54(2):193-202.
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基于16S rRNA分析禽白血病对鸡肠道微生物菌群的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第2期
页码:
193-202
栏目:
动物科学与动物医学
出版日期:
2026-01-20

文章信息/Info

Title:
Study on impact of avian leukosis on chicken intestinal microbial flora based on 16S rRNA
作者:
吴香君12王钱保1赵振华1张会永1孔熠1张耿铭12吴兆林1孔令琳1谢遇春2黄华云1
1.江苏省家禽科学研究所,江苏扬州 225125; 2.河北科技师范学院动物科技学院,河北秦皇岛 066600
Author(s):
Wu Xiangjunet al
关键词:
禽白血病16S rRNA盲肠肠道菌群
Keywords:
-
分类号:
S858.31
DOI:
-
文献标志码:
A
摘要:
通过系统解析鸡盲肠微生物群落结构与多样性的动态变化规律,揭示禽白血病(avian leukosis,AL)致病机制与肠道菌群演替的互作关系,着力解决因禽白血病病毒(ALV)感染引发的鸡肠道微生态失衡问题。试验选用江苏省家禽科学研究所自主培育的专门化优质品系E系、S3系、R系和S2系作为研究对象,分别采集阴性对照群组与阳性禽白血病感染组的盲肠内容物样本,通过16S rRNA基因高通量测序技术,系统解析盲肠微生物群落结构。运用QIIME2平台开展扩增子序列变异体(ASV)多样性解析,精准识别微生物物种单元;基于R语言Vegan包执行α多样性分析,量化组内微生物群落的丰富度与均匀度;利用MetaboAnalystR包,基于Bray-Curtis距离算法完成β多样性分析及正交偏最小二乘判别分析(OPLS-DA),揭示组间微生物群落结构差异;用线性判别分析效应量软件对组间差异物种进行统计学筛选;最后利用PICRUSt2工具,结合KEGG和GO数据库,进行菌群功能代谢通路预测分析,全面探究盲肠菌群的生物学功能。结果显示,R系共获得692个ASV,S2系共获得692个ASV,E系共获得640个ASV,S3系共获得717个ASV;阳性组的Shannon指数和Chao1指数均低于阴性组,表明禽白血病感染导致盲肠菌群多样性降低;所有样本总共注释了15个门、19个纲、40个目、72个科及120个属;在菌群结构组成层面,门水平分析表明:拟杆菌门、厚壁菌门、脱硫杆菌门、放线菌门和疣微菌门相对丰度总和超过微生物总量的90%;其中S2系与E系中,阳性感染组厚壁菌门与拟杆菌门的丰度比值(F/B)较阴性组显著升高,而S3系与R系呈现相反趋势;而变形菌门的相对丰度升高,在属水平上,拟杆菌属为4个品系盲肠微生物群落的共有优势菌属,阳性组拟杆菌属相对丰度均低于阴性组。基于PICRUSt2的功能预测分析结果表明,ALV阳性感染显著改变盲肠菌群代谢功能:菌群短链脂肪酸(SCFAs)合成代谢通路显著下调,而氨类物质合成相关通路显著上调,预示肠道能量代谢效率降低。本研究证实,ALV感染可显著改变鸡盲肠微生物群落的结构与功能,致使菌群多样性降低、优势菌属比例失衡,并引发代谢通路显著重构。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2025-10-28
基金项目:农业生物育种重大项目(编号:2023ZD04053)。
作者简介:吴香君(1992—),女,辽宁凤城人,硕士,从事家禽遗传育种与生产研究。E-mail:1844625084@qq.com。
通信作者:谢遇春,博士,讲师,从事动物遗传育种研究,E-mail:878603156@qq.com;黄华云,博士,研究员,从事家禽遗传育种与生产研究,E-mail:huanghuayun520@163.com。
更新日期/Last Update: 2026-01-20