您好，欢迎访问湖南省农业科学院 机构知识库！

The Race Structure of the Rice Blast Pathogen Across Southern and Northeastern China

文献类型： 外文期刊

作者： Zhang, Yaling 2 ; Zhu, Qiongle 1 ; Yao, Yongxiang 1 ; Zhao, Zhenghong 4 ; Correll, James C.; Wang, Ling 1 ; Pan, Qi 1 ;

作者机构： 1.South China Agr Univ, Coll Agr, Guangdong Prov Key Lab Crop Mol Breeding, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangzhou 510642, Guangdong, Peoples R China

2.Heilongjiang Bayi Agr Univ, Coll Agron, Daqing 163319, Peoples R China

3.Dandong Acad Agr Sci, Dandong 118109, Peoples R China

4.Hunan Rice Res Inst, Changsha 410125, Huna

关键词： Oryza sativa;Magnaporthe oryzae;Differential cultivar;Race structure;Resistance gene

期刊名称：RICE （ 影响因子：4.783； 五年影响因子：5.23 ）

ISSN： 1939-8425

年卷期： 2017 年 10 卷

页码：

收录情况： SCI

摘要： Background: Rice blast, caused by the ascomycete Magnaporthe oryzae (Mo), imposes a major constraint on rice productivity. Managing the disease through the deployment of host resistance requires a close understanding of race structure of the pathogen population. Results: The host/pathogen interaction between isolates sampled from four Mo populations collected across the rice-producing regions of China was tested using two established panels of differential cultivars. The clearest picture was obtained from the Chinese cultivar panel, for which the frequency of the various races, the race diversity index, the specific race isolate frequency, and the frequency of the three predominant races gave a consistent result, from which it was concluded that the pathogen population present in the southern production region was more diverse than that in the northeastern region. The four blast resistance genes Pi1, Pik, Pik-m, and Piz all still remain effective in the southern China rice production area, as does Pi1 in the northeastern region. The effectiveness of Pita, Pik- p, Piz, and Pib is restricted to single provinces. The distinctive resistance profile shown by the Chinese differential cultivar set implied the presence of at least five as yet unidentified blast resistance genes. Conclusions: The Chinese differential cultivar set proved to be more informative than the Japanese one for characterizing the race structure of the rice blast pathogen in China. A number of well characterized host resistance genes, in addition to some as yet uncharacterized ones, remain effective across the major rice production regions in China.

  • 相关文献

[1]A novel function of sanshools: The alleviation of injury from metolachlor in rice seedlings. Zhou, Xiaomao,Wu, Jing,Bai, Lianyang,Tang, Xinke,Li, Jingbo,Bai, Lianyang,Wu, Jing. 2014

[2]Mapping of quantitative trait loci for cold tolerance at the early seedling stage in landrace rice Xiang 743. Lu, Tingting,Li, Yongchao,Pan, Xiaowu,Duan, Yonghong,Min, Jun,Sheng, Xinnian,Xiao, Junzhi,Liu, Sanxiong,Tan, Jiang,Li, Xiaoxiang,Fu, Xiqin,Yao, Yi.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：湖南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台