[1]罗永露,陈天青,隋建枢,等.199份小麦种质白粉病抗性鉴定[J].江苏农业科学,2025,53(10):125-133.
 Luo Yonglu,et al.Identification of powdery mildew resistance of 199 wheat germplasms[J].Jiangsu Agricultural Sciences,2025,53(10):125-133.
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199份小麦种质白粉病抗性鉴定()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第10期
页码:
125-133
栏目:
植物保护
出版日期:
2025-05-20

文章信息/Info

Title:
Identification of powdery mildew resistance of 199 wheat germplasms
作者:
罗永露1陈天青1隋建枢1吴文强1何庆才2王伟1
1.贵州省旱粮研究所,贵州贵阳 550025; 2.贵州省农业科学院,贵州贵阳 550025
Author(s):
Luo Yongluet al
关键词:
白粉病抗性基因小麦地方品种自育品种(系)分子检测
Keywords:
-
分类号:
S435.121.4+6;S512.103.7
DOI:
-
文献标志码:
A
摘要:
为有效利用贵州地区小麦抗白粉病种质资源,对来自贵州省旱粮研究所收集及选育的199个小麦品种(系)进行了白粉病抗性鉴定,以便选育抗病性更为持久的小麦品种。结合西南地区已知的主效抗白粉病基因和一因多效基因(Pm4a、Pm4b、Pm13、Pm21、Pm30、Pm46、Pm52和Pm61)进行分子检测。抗病性鉴定结果表明,所有供试种质中均未检测到Pm4a、Pm13、Pm30和Pm46,少部分种质中检测到Pm4b、Pm52和Pm61,Pm21被检测到的频率较高。31份品种(系)携带Pm4b基因;54份品种(系)携带Pm21基因;38份品种(系)携带Pm52基因;28份品种(系)携带Pm61基因。其中30份品种(系)携带2个抗性基因,7份品种(系)携带3个抗性基因。国内品种(系)的感病率为393%,国外品种的感病率为47.62%,26份地方品种均表现抗性且均未检出目标抗性基因。供试材料的抗性越强,Pm21基因出现的频率越高,含有Pm21基因的种质仅有1份表现中抗水平,其他均为高抗以上水平,因此,在今后的小麦抗病育种工作中,含有Pm21基因的种质可作为重要的亲本来源。分析得出,随着抗性基因数的增加,感病率大幅度降低,在今后的育种工作中应尽可能聚合较多的抗性基因,这样既可大大降低感病率,同时可以很好地应对单一抗性基因品种大面积推广带来的风险。因此,在今后的小麦抗病育种工作中,要加强白粉病鉴定和新抗源的发掘,同时通过多个抗病基因的聚合,选育抗性更强的小麦品种。贵州省新育成小麦品种(系)对白粉病菌流行菌系的抗病频率呈下降趋势,同时推测地方品种也可能含有其他抗性基因。在抗白粉病育种工作中,应慎用国外品种作为小麦抗病育种的亲本资源。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2024-04-28
基金项目:贵州省科技计划[编号:黔科合基础-ZK(2023)一般170、黔科合支撑(2024)一般109];贵州省农业科学院项目[编号:黔农科青年基金(2023)23号、黔农科科技创新(2023)02号];国家现代农业产业技术体系建设专项(编号:CARS-3-86);国家农业科技重大项目(编号:NK20220607);贵州省育种科研基础平台创新能力建设项目(编号:黔科合服企[2022]014)。
作者简介:罗永露(1989—),女,贵州遵义人,硕士,农艺师,从事小麦遗传育种研究。E-mail:1007175636@qq.com。
通信作者:王伟,硕士,研究员,从事小麦遗传育种研究。E-mail:3189205622@qq.com。
更新日期/Last Update: 2025-05-20