贾秋珍1, 2, 3*, 曹世勤1, 2, 3*, 王晓明1, 2, 3, 黄瑾1, 2, 3, 孙振宇1, 2, 3, 张勃1, 2, 3, 骆惠生1, 2, 李青青1, 2.2017年2018年甘肃省小麦条锈菌生理小种变异监测[J].植物保护,2021,47(2):214-218. |
2017年2018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 2017-2018 |
投稿时间:2020-03-22 修订日期:2020-06-30 |
DOI:10.16688/j.zwbh.2020147 |
中文关键词: 小麦条锈菌 生理小种 致病类群 致病基因 |
英文关键词:Puccinia striiformis f.sp. tritici physiological race pathotype virulent gene |
基金项目:国家自然科学基金地区基金(31860484);国家重点研发计划(2018YFD0200406);甘肃省小麦产业技术体系(GARS-01-07) |
作者 | 单位 | E-mail | 贾秋珍1, 2, 3*, 曹世勤1, 2, 3*, 王晓明1, 2, 3, 黄瑾1, 2, 3, 孙振宇1, 2, 3, 张勃1, 2, 3, 骆惠生1, 2, 李青青1, 2 | 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 | 贾秋珍jiaqiuzhen@163.com;曹世勤caoshiqin6702@163.com |
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中文摘要: |
2017年2018年对采自甘肃省不同生态区的572份小麦条锈菌标样进行生理小种鉴定及监测, 结果表明:两年共监测出37个生理小种及致病类型。其中贵农22类群居第一位, 2017年和2018年出现频率分别为56.88%和50.34%, 中四类群出现频率分别为10.15%和13.85%。主要流行小种中, 条中34号出现频率分别为33.69%和38.51%, 居第一位; 条中32号出现频率分别为13.04%和15.20%, 居第二位; 条中33号出现频率降至5%以下; 贵22-14致病类型出现频率在4%~6.6%之间; 新菌系ZS-1出现频率呈上升趋势, 2017年和2018年出现频率分别为2.90%和7.43%; 次要致病类型中, HY4、HY8、水11-3、水11-7、水11-192及贵22-104、贵22-108、ZS-18等出现频率在0.72%~4.71%之间, 其他致病类型在0.36%以下。毒性分析发现, VYr9、VYr3b+Yr4b、VYrSu、VYr26仍为甘肃省主要毒性致病基因。目前甘肃小麦条锈菌仍处于以条中34号为主的贵农22致病类群占优势阶段。开展中四类群监测是今后条锈菌变异研究的重点。抗条锈育种应以抗条中34号、条中32号、ZS-1为主, 兼顾贵农22及中四类群中其他类型。 |
英文摘要: |
572 samples of wheat stripe rust from different locations of Gansu province at adult stage, over-summer period, autumn-seedling stage and spring stage, were collected for monitoring the variation of physiological races of Puccinia striiformis f.sp. tritici (Pst) during 20172018. The results showed that 37 races of Pst were acquired. The frequencies of pathotype clade Guinong 22 of Pst were 56.88% and 50.34%, and the new pathotype clade Zhong 4 were 10.15% and 13.85%, respectively. The frequencies of the first dominant race CYR34 were 33.69% and 38.51%, followed by CYR32 with the frequency of 13.04% and 15.20%, and the CYR33 decreased to less than 5%. The frequency of G22-14 were 4%6.6%. The frequencies of new isolate ZS-1 were 2.90% and 7.43%, showing increase tendency. The frequencies of isolates HY4, HY8, Su11-3, Su 11-7, Su 11-192, G22-104, G22-108 and ZS-18 were 0.72% to 4.71%, while those of other races were as lower than 0.36%. The main virulent genes were VYr9, VYr3b+Yr4b, VYrSu and VYr26 in Gansu province during 2017—2018. The physiological race CYR34 and Guinong 22 clade were the leading races in the sampled Pst populations. Monitoring the new pathotype clade Zhong 4 variation will be the key point in further research in Gansu province. The future goals of wheat breeding need to be focus on the resistance to CYR34, CYR32 and ZS-1, and with consideration to other races of Pst such as Guinong clade and Zhong 4 clade. |
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