| 安徽省稻瘟病菌生理小种鉴定分析 |
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| 引用本文： | 周坤能,夏加发,王元垒,云鹏,张彩娟,马廷臣,张爱芳,李泽福.安徽省稻瘟病菌生理小种鉴定分析[J].南方农业学报,2022,53(11):3098-3106. |
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| 作者姓名： | 周坤能 夏加发 王元垒 云鹏 张彩娟 马廷臣 张爱芳 李泽福 |
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| 作者单位： | 1. 安徽省农业科学院水稻研究所/安徽省水稻遗传育种重点实验室, 安徽合肥 230001;2. 安徽省农业科学院植物保护与农产品质量安全研究所, 安徽合肥 230001 |
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| 基金项目： | 安徽省科技重大专项(202003a06020005)安徽省重点研究与开发计划项目(202004a06020027) |
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| 摘 要： | 【目的】探究安徽省稻瘟病菌优势种群和优势生理小种分布,分析优势生理小种的致病力,为稻瘟病抗性育种和品种推广布局提供参考。【方法】利用7个水稻鉴别品种,采用苗期人工喷雾接种法对2019—2020年收集的安徽省5个稻作区21个市(县、区)的稻瘟病菌进行鉴定,利用不同优势生理小种对775份水稻资源进行苗瘟抗性鉴定,分析其致病力,筛选抗稻瘟病优异水稻资源。【结果】共鉴定出7群25个稻瘟病菌生理小种,优势种群为ZB群,出现频率为58.58%,其次为ZC群,出现频率为22.62%;优势生理小种为ZB13、ZB15和ZC15,出现频率分别为32.43%、17.98%和17.98%。沿淮淮北单季稻作区凤台县优势生理小种为ZB15、ZC15和ZB13,怀远县为ZB13和ZB9,谢家集区为ZB13和ZG1;江淮丘陵单、双季稻过渡区全椒县优势生理小种为ZB15,寿县为ZB13、ZC15和ZB15,肥西县为ZB13和ZB15;沿江双、单季稻作区青阳县优势生理小种为ZC15,无为市为ZB13和ZG1,宣州区为ZB13、ZB15和ZC15,当涂县为ZB13、ZC13和ZC15,贵池区为ZB15和ZC15,南陵县为ZC15、ZB13和ZB15,怀宁县为ZB13;大别山地单、双季稻作区金寨县优势生理小种为ZB13和ZG1,潜山市为ZB13和ZB15,岳西县为ZB13和ZH1;皖南山地单、双季稻作区石台县优势生理小种为ZB15、ZB13和ZC15,休宁县为ZC15、ZG1、ZB15和ZH1,宁国市为ZB13和ZG1,黄山区为ZB13、ZC13和ZC15,歙县为ZC15。优势生理小种致病力分析结果显示,休宁县和金寨县ZB13的致病力分别为59.68%和62.06%,平均为60.87%;休宁县和潜山县ZB15的致病力分别为61.16%和64.84%,平均为63.00%;休宁县和南陵县ZC15的致病力分别为71.29%和66.26%,平均为68.78%。通过筛选获得10份抗苗瘟优异种质资源。【结论】安徽省稻瘟病菌优势种群为ZB和ZC群,优势生理小种为ZB13、ZB15和ZC15。明确了安徽省不同稻作区生理小种的结构分布。
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| 关 键 词： | 水稻 稻瘟病菌 优势种群 生理小种 鉴定 致病力 安徽省 |
| 收稿时间： | 2022-08-23 |
Identification and analysis of physiological races of Magnaporthe oryzae in Anhui Province |
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| ZHOU Kun-neng,XIA Jia-fa,WANG Yuan-lei,YUN Peng,ZHANG Cai-juan,MA Ting-chen,ZHANG Ai-fang,LI Ze-fu.Identification and analysis of physiological races of Magnaporthe oryzae in Anhui Province[J].Journal of Southern Agriculture,2022,53(11):3098-3106. |
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| Authors: | ZHOU Kun-neng XIA Jia-fa WANG Yuan-lei YUN Peng ZHANG Cai-juan MA Ting-chen ZHANG Ai-fang LI Ze-fu |
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| Affiliation: | 1. Rice Research Institute, Anhui Academy of Agricultural Sciences/Key Laboratory for Rice Genetics and Breeding of Anhui Province, Hefei, Anhui 230001, China;2. Institute for Plant Protection and Quality and Safety of Agricultural Products, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230001, China |
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| Abstract: | 【Objective】To explore distribution of dominant populations and physiological races of Magnaporthe oryzae in Anhui Province and analyze pathogenicity of dominant physiological races,so as to provide a reference for rice blast resistance breeding and variety promotion.【Method】Seven rice varieties were identified and classified. M. oryzae from 21 cities(counties and districts) in 5 rice growing areas of Anhui Province from 2019 to 2020 were isolated and identified through artificial spray inoculation method at seedling stage. Seedling blast resistance of 775 rice resources was identified by different dominant physiological races to analyze pathogenicity and screen excellent rice resources resistant to rice blast.【Result】Seven groups of 25 physiological races were identified,and the dominant group was ZB with a frequency of 58.58%,followed by ZC with a frequency of 22.62%. Dominant physiological races were ZB13,ZB15 and ZC15,whose frequencies were 32.43%,17.98% and 17.98%,respectively. In single-season rice growing area along the Huaihe River and Huaibei region,dominant physiological races were ZB15,ZC15 and ZB13 in Fengtai County,ZB13 and ZB9 in Huaiyuan County,and ZB13 and ZG1 in Xiejiaji District. In single-and double-season rice growing areas of Jianghuai hilly area,dominant physiological races were ZB15 in Quanjiao County,ZB13,ZC15 and ZB15 in Shou County,and ZB13 and ZB15 in Feixi County. In double-and single-season rice growing areas along Yangtze River,dominant physiological races were ZC15 in Qingyang County,ZB13 and ZG1 in Wuwei City,ZB13,ZB15 and ZC15 in Xuanzhou District,ZB13,ZC13 and ZC15 in Dangtu County,ZB15 and ZC15 in Guichi District,ZC15,ZB13 and ZB15 in Nanling County,and ZB13 in Huaining County. In single-and double-season rice growing areas of Dabie Mountains,the dominant physiological races were ZB13 and ZG1 in Jinzhai County,ZB13 and ZB15 in Qianshan City,and ZB13 and ZH1 in Yuexi County. In single-and double-season rice growing areas of mountains in south Anhui,dominant physiological races were ZB15,ZB13 and ZC15 in Shitai County,ZC15,ZG1,ZB15 and ZH1 in Xiuning County,ZB13 and ZG1 in Ningguo City,ZB13,ZC13 and ZC15 in Huangshan District,and ZC15 in She County. Pathogenicity analysis of dominant physiological races showed that the pathogenicity of ZB13 in Xiuning County and Jinzhai County was 59.68% and 62.06% respectively,with an average of 60.87%. Pathogenicity of ZB15 in Xiuning County and Qianshan County was 61.16% and 64.84% respectively,with an average of 63.00%. Pathogenicity of ZC15 in Xiuning County and Nanling County was 71.29% and 66.26% respectively,with an average of 68.78%. As a result,10 excellent germplasm resources with seedling blast resistance were obtained.【Conclusion】The dominant populations of M. oryzae in Anhui Province are ZB population and ZC population,and the dominant physiological races are ZB13,ZB15 and ZC15. The distribution of physiological races in different rice growing areas of Anhui Province has been made clear. |
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