| 贾秋珍1, 2, 3*, 曹世勤2, 3, 4*, 王晓明1, 2, 3, 孙振宇1, 2, 3, 张 勃1, 2, 3, 黄 瑾1, 2, 3, 骆惠生1, 2, 3, 李青青1, 2, 3.2019年-2020年甘肃省小麦条锈菌生理小种变异监测[J].植物保护,2022,48(5):327-332. |
| 2019年-2020年甘肃省小麦条锈菌生理小种变异监测 |
| Monitoring the variation of physiological races of Puccinia striiformis f.sp. tritici in Gansu province during 2019-2020 |
| 投稿时间：2021-09-09 修订日期：2021-11-29 |
| DOI：10.16688/j.zwbh.2021500 |
| 中文关键词: 小麦条锈菌 生理小种 致病类群 变异监测 |
| 英文关键词:Puccinia striiformis f.sp. tritici physiological race pathotype monitoring of the variation |
| 基金项目:国家自然科学基金地区基金(31860484) |
| 作者 | 单位 | E-mail | | 贾秋珍1, 2, 3*, 曹世勤2, 3, 4*, 王晓明1, 2, 3, 孙振宇1, 2, 3, 张 勃1, 2, 3, 黄 瑾1, 2, 3, 骆惠生1, 2, 3, 李青青1, 2, 3 | 1. 甘肃省农业科学院植物保护研究所, 兰州 730070
2. 农业农村部天水作物有害生物野外科学观测实验站, 天水 741200
3. 农业农村部国家植物保护甘谷观测实验站, 天水 741200
4. 甘肃省农业科学院小麦研究所, 兰州 730070 | 贾秋珍jiaqiuzhen@163.com; 曹世勤caoshiqin6702@163.com |
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| 中文摘要: |
| 2019年-2020年, 对甘肃省不同生态区于小麦不同生育期采集的661份条锈菌标样, 在甘肃省农业科学院植物保护研究所兰州温室进行条锈菌生理小种变异监测, 结果表明:两年共监测到52个生理小种及致病类型, 其中贵农22仍为优势致病类群, 居第一位, 2019年和2020年出现频率分别为36.7%和 49.5%, 低于2018年的50.3%; 其次是HY和水源致病类群, 出现频率分别为25.3%?25.5%和10.2%和15.5%; 中四致病类群出现频率分别为22.8%和7.6%, 2020年居第五位, 低于2018年的13.9%?流行小种条中34号出现频率分别为23.4%和22.5%, 居第一位; 条中32号出现频率分别为19.6%和17.9%, 居第二位; 条中33号?贵22-14出现频率分别为4.4%?4.0%和2.5%?6.0%; 新类型ZS-1出现频率分别为7.0%和0.6%?次要致病类型如HY8?HY29?HY103?水11-192及贵22-13?贵22-108?贵22-244和贵22-271等出现频率在1.0%~1.9%之间, 其他致病类型均在0.6%以下?毒性分析发现, VYr9?VYr3b+Yr4b?VYrsu?VYr26为甘肃省条锈菌主要毒性致病基因, 毒性频率在50.6%~93.7%之间?甘肃小麦条锈菌群体结构仍处于以条中34号为主的贵农22致病类群占优势阶段?对感染中四的新致病菌系ZS进行持续监测是今后一段时期甘肃省小麦条锈菌变异研究的重点?小麦抗条锈育种应以兼抗条中34号?条中32号为主, 兼顾贵农22其他类型及中四新菌系? |
| 英文摘要: |
| 661 samples of wheat stripe rust from different locations of Gansu province at different growth stages of over-summering, seedling in autumn and spring stem elongation and adult plant, were collected for monitoring the variation of physiological races of Puccinia striiformis f.sp. tritici (Pst) at Lanzhou greenhouse, Institute of Plant Protection, Gansu Academy of Agricultural Sciences during 2019-2020. The results showed that there were 52 races/types of Pst. The frequencies of pathotype clade Guinong 22 were 36.7% and 49.5% in 2019 and 2020, respectively, lower than 2018, which was 50.3%. The second and third pathotype clade were HY and Su11, with the frequencies of 25.3%, 25.5% and 10.2%, 15.5%, respectively. The new pathotype clade Zhong 4 were 22.8% and 7.6%, the fifth in 2020, also lower than 2018 with the frequency of 13.9%. The frequencies of the first dominant race CYR34 of Pst were 23.4% and 22.5%, and the second race CYR32 were 19.6% and 17.9%, the followed race ZS-1 was sharply decreased to 7.0% and 0.6%. The race CYR33 and Gui 22-14 were slowly increased, with the frequencies of 4.4%, 4.0% and 2.5%, 6.0%, respectively. The frequencies of other races/pathotypes including HY8, HY29, HY103, Su11-192, Gui 22-13, Gui 22-108, Gui 22-244, Gui 22-271, were 1.0% to 1.9%, while others were lower than 0.6%. The main virulent genes were VYr9, VYr3b+Yr4b, VYrsu, VYr26, and the virulent frequencies were 50.6% to 93.7%. The CYR34 and Guinong 22 clade were the leading races in the sampled Pst populations, which was the same as during 2017-2018. We will pay more attention to the future research on monitoring the virulence variation of Pst including the new ZS types of Pst. The wheat breeding need to be focused on the resistance to CYR34, CYR32, and given consideration to other races of Pst including CYR33, other types of Guinong clade and Zhong 4 clade, especially to winter wheat in Gansu province. |
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