福建省稻瘟病菌对主要抗瘟基因及主栽品种的致病性分析

发布时间：2018-04-13 21:02

本文选题：稻瘟病菌 + 抗瘟基因　；参考：《植物保护学报》2016年03期

【摘要】：为明确福建省各稻区的主要抗瘟基因及主栽品种的利用价值,2012—2014年采用喷雾法测定了丽江新团黑谷上的193个菌株对30个水稻抗瘟基因及93个主栽水稻品种的致病性。结果表明,供试稻瘟病菌对30个抗瘟基因表现为强致病力和较强致病力的出现频率分别为13.47%和52.85%,对93个主栽品种表现为强致病力和较强致病力的出现频率分别为1.55%和11.40%;供试稻瘟病菌对抗瘟基因Pi-k~m、Pi-7(t)、Pi-k~p和Pi-9(t)的毒力频率均低于20%;供试稻瘟病菌对谷优2329、谷优5138、昌优964等37个品种的毒力频率均低于20%,对谷优系列、全优系列、深优系列、泰丰优系列及天优系列水稻品种的毒力频率均低于20%。研究表明,在福建地区抗瘟基因Pik~m、Pi-7(t)、Pi-k~p和Pi-9(t)可作为抗源使用,且谷丰A、全丰A、深97A、泰丰A和天丰A仍是抗瘟性较好的育种亲本材料。
[Abstract]:In order to determine the utilization value of main blast resistance genes and main cultivars in Fujian Province, the pathogenicity of 193 strains on Xintuanhegu, Lijiang, from 2012-2014 to 30 rice blast resistant genes and 93 main rice varieties was determined by spray method.The results show thatThe frequency of strong pathogenicity and virulence to 30 resistant genes were 13.47% and 52.85% respectively, and the frequency of strong pathogenicity and virulence to 93 main cultivars were 1.55% and 11.40% respectively.The virulence frequencies of the resistant genes Pi-kapu Pi-kopp and Pi-9GUT) were lower than 20, and the virulence frequencies of the tested 37 varieties were lower than 20, and the virulence frequencies were lower than those of Gaoyou 2329, Gouyou 5138, Changyou 964 and Gaoyou series, respectively.The virulence frequency of rice varieties of Quanyou series, Shenyou series, Taifeng series and Tianyou series are all lower than 20 kum.The results showed that the resistant genes Pikamia morifolia Pi-7tPi-kapp and Pi-9t1) could be used as resistance sources in Fujian area, and Gufeng A, Quanfeng A, Shen 97A, Taifeng A and Tianfeng A were still breeding parents with better resistance to blast.
【作者单位】：福建省农业科学院植物保护研究所;
【基金】：国家公益性行业(农业)科研专项(201203014) 福建省省属公益类科研院所基本科研专项(2015R1028-1) 福建省科技厅项目(2009N2005)
【分类号】：S435.111.41

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