[1]宋兆强,刘艳,王宝祥,等.稻瘟病抗性基因Pi-ta、Pi-b、Pi54和Pi-km的育种利用价值评价[J].江苏农业学报,2017,(05):968-974.[doi:doi:10.3969/j.issn.1000-4440.2017.05.002]
 SONG Zhao-qiang,LIU Yan,WANG Bao-xiang,et al.Application value of blast resistant genes Pi-ta, Pi-b, Pi54 and Pi-km in rice breeding[J].,2017,(05):968-974.[doi:doi:10.3969/j.issn.1000-4440.2017.05.002]
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稻瘟病抗性基因Pi-ta、Pi-b、Pi54和Pi-km的育种利用价值评价()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年05期
页码:
968-974
栏目:
遗传育种·生理生化
出版日期:
2017-10-30

文章信息/Info

Title:
Application value of blast resistant genes Pi-ta, Pi-b, Pi54 and Pi-km in rice breeding
作者:
宋兆强1刘艳1王宝祥1王芳权2迟铭1刘金波1陈庭木1方兆伟1邢运高1
(1.江苏徐淮地区连云港农业科学研究所/江苏省现代作物生产协同创新中心,江苏连云港222006;2.江苏省农业科学院 粮食作物研究所,江苏南京210014)
Author(s):
SONG Zhao-qiang1LIU Yan1WANG Bao-xiang1WANG Fang-quan2CHI Ming1LIU Jin-bo1CHEN Ting-mu1FANG Zhao-wei1XING Yun-gao1XU Bo1YANG Bo1YANG Jie2XU Da-yong1
(1.Lianyungang Institute of Agricultural Sciences of the Xuhuai District of Jiangsu Province/Jiangsu Collaborative Innovation Center for Modern Crop Production, Lianyungang 222006, China;2.Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China)
关键词:
水稻稻瘟病抗性基因
Keywords:
ricerice blastresistance gene
分类号:
S332.2
DOI:
doi:10.3969/j.issn.1000-4440.2017.05.002
文献标志码:
A
摘要:
要:稻瘟病是水稻生产上的主要病害,利用稻瘟病抗性基因培育抗病品种是防治稻瘟病最经济、最有效的方法。为了明确稻瘟病抗性基因Pi-ta、Pi-b、Pi54和Pi-km在水稻抗病育种中的利用价值,本研究利用这4个抗性基因的功能标记,对在稻瘟病菌圃经多年抗性筛选的60份资源材料进行基因型鉴定,并通过连续两年稻瘟病菌接种鉴定对不同抗性基因的抗稻瘟病发展趋势进行调查分析。结果表明,60份试验材料中,只携带Pi-ta基因的有14份,占总材料的233%,携带Pi-ta+Pi-b基因组合的有9份,占总材料的150%,携带Pi-b+Pi54基因组合的有9份,占总材料的150%,携带Pi-ta+Pi-b+Pi54基因组合的有12份,占总材料的200%。 在连续两年的接种鉴定中,Pi-ta、Pi-ta+Pi-b和Pi-ta+Pi-b+Pi54基因组合均无4级高感;只有Pi-b+Pi54基因组合出现4级高感材料。通过连续两年抗性基因与穗颈瘟发病等级的相关性分析,发现几乎所有基因的抗病能力都在不断减弱。因此,在抗稻瘟病新品种选育中抗稻瘟病新抗源的挖掘和新抗性基因的导入已经迫在眉睫。
Abstract:
Rice blast is one of the major diseases in rice production, and breeding resistant cultivars is an effective way to prevent. To evaluate the value of blast resistant genes Pi-ta, Pi-b, Pi54 and Pi-km in rice breeding, the functional markers of resistant genes were used to detect 60 rice cultivars subjected to years′ rice blast resistance selection. 14 cultivars sololy carrying Pi-ta, 9 carrying Pi-ta+Pi-b, 9 carrying Pi-b+Pi54, and 12 cultivars carrying Pi-ta+Pi-b+ Pi54 were identified, accounting for 23.3%, 150%, 150%, and 200% respectively. Only rice cultivars carrying Pi-b+Pi54 gene combination showed high susceptibility in two continuous years′ artificial identification. Two years′ correlation analysis between resistant genes and neck blast resistance revealed that the resistance of almost all genes have weakened. It is crucial to select new resistant genes in rice breeding.

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备注/Memo

备注/Memo:
收稿日期:2017-03-14 基金项目:连云港市现代农业项目(CN1502);国家水稻产业技术体系(CARS-01-05B);连云港市现代农业项目 (NYYQ1617) 作者简介:宋兆强(1984-),男,山东临沂人,硕士,助理研究员,主要研究方向为水稻遗传育种研究。(Tel)13815665524;(E-mail)616728009@qq.com 通讯作者:徐大勇,(E-mail)xudayong3030@sina.com;杨杰,(E-mail)yangjie168@aliyun.com
更新日期/Last Update: 2017-11-03