Application of Functional Markers to Identify Genes for Bacterial Blight Resistance in Oryza rufipog

来源 :Rice Science | 被引量 : 0次 | 上传用户:gb1107
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Field resistances of nine accessions of common wild rice(Oryza rufipogon Griff.) and one rice variety(IR24) were evaluated by using nine strains of bacterial blight pathogen(Xanthomonas oryzae pv.oryzae) from the Philippines.IR24 was highly susceptible to all the strains,and six common wild rice accessions resisted all the nine strains,with a resistance frequency of 67%.The accessions Yulin and Wanning were only susceptible to PXO280 and PXO71,respectively.The accession Gaozhou was susceptible to the three strains PXO79,PXO99 and PXO339,whereas resistant to the other six strains.It could be concluded that there is at least one resistance gene in each common wild rice accession.The functional markers of the genes xa5,xa13,Xa21 and Xa27 were used to detect the presence of these resistance genes in the nine tested wild rice accessions,and it was found that four wild rice accessions contained heterozygous xa13.Among the nine common wild rice accessions,five were homozygous for Xa27 and three homozygous for xa27,and the accession Laibin contained neither xa27 nor Xa27.In addition,there were no xa5 and Xa21 in all of these accessions. Field resistances of nine accessions of common wild rice (Oryza rufipogon Griff.) And one rice variety (IR24) were evaluated by using nine strains of bacterial blight pathogen (Xanthomonas oryzae pv. Oryzae) from the Philippines. IR24 was highly susceptible to all the and six common wild rice accessions resisted all the nine strains, with a resistance frequency of 67%. Accessions Yulin and Wanning were only susceptible to PXO280 and PXO71, respectively. The accession Gaozhou was susceptible to the three PXO79, PXO99 and PXO339, of answerable to the other six strains. It could be concluded that there is at least one resistance gene in each common wild rice accession. Functional markers of the genes xa5, xa13, Xa21 and Xa27 were used to detect the presence of these resistance genes in the nine tested wild rice accessions, and it was found that four wild rice accessions contained heterozygous xa13. Among the nine common wild rice accessions, five were homozygous for Xa27 and thr ee homozygous for xa27, and the accession Laibin contained neither xa27 nor Xa27. addition, there were no xa5 and Xa21 in all of these accessions.
其他文献
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
各自治州、市人民政府,各地区行署,各县(自治县、市、市辖区、特区)人民政府,省政府各部门、各直属机构: 《贵州省旅游局职能配置、内设机构和人员编制规定》经省机构编制委
了不起的一票 在中国现代史上,在革命队伍里,有许多杰出的女同志深受大家尊敬,人们亲切地尊称她们为“大姐”。陈少敏同志便是其中一个。 1966年8月,北京的政治气候十分严峻
慎,为谨慎小心的意思。干任何事,办任何事,无论是大事,还是小事,没有慎重的态度,谨慎的作风是办不好的。 毛泽东1944年曾致信郭沫若说:“我虽然兢兢业业,生怕出岔子,但说不定
党的十四届六中全会作出了《关于加强社会主义精神文明建设若干重要问题的决议》,这是一个指导我国社会主义精神文明建设的纲领性文件,是我们跨世纪精神文明建设的宏伟蓝图。
红一方面军与红四方面军在长征中会师后,党中央于1935年8月4日,召开了历史上著名的毛儿盖会议。一方面军的毛泽东、周恩来、张闻天等领导人,四方面军的张国焘、徐向前等人都
“九五”和到2010年是我国国民经济和社会发展的重要时期。在这个重要时期的开端,地矿部党组根据党的十四届五中全会精神,在回顾总结“八五”期间地矿工作改革与发展经验的基
渴望正直祁洪斌正直是中华民族传统美德的重要组成部分,千百年来人们把正直作为行为规范之一,把正直与否当成评价一个人品行好坏的标准。古往今来,正直者,广为人们传颂。伟大的文
我们党历来重视理论学习问题,有着良好的传统,也形成了许多行之有效的好办法、好形式。在学习十四届六中全会《决议》,加强精神文明建设的工作中更应充分激励,提高基层干部
在当今中国有色金属矿产勘察领域,有一位不能不提及的人物,这倒不是因为他如何的德高望重,而是他在中国最早运用并发展了一种寻找和预测深部隐伏矿床的有效方法——地电化学