Genetic Diversity and Population Structure of Rice Pathogen Ustilaginoidea virens in China
文献类型： 外文期刊
作者： Sun, Xianyun 1 ; Kang, Shu 1 ; Zhang, Yongjie 2 ; Tan, Xinqiu 3 ; Yu, Yufei 1 ; He, Haiyong 4 ; Zhang, Xinyu 1 ; Liu, Yon 1 ;
作者机构： 1.Chinese Acad Sci, Inst Microbiol, State Key Lab Mycol, Beijing, Peoples R China
2.Shanxi Univ, Sch Life Sci, Taiyuan, Peoples R China
3.Hunan Acad Agr Sci, Inst Plant Protect, Changsha, Hunan, Peoples R China
4.Guizhou Inst Plant Protect, Guiyang, Peoples R China
5.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing, Jiangsu, Peoples R China
6.Liaoning Acad Agr Sci, Inst Plant Protect, Shenyang, Peoples R China
7.China Agr Univ, Dept Plant Pathol, Beijing 100094, Peoples R China
期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）
ISSN： 1932-6203
年卷期： 2013 年 8 卷 9 期
页码：
收录情况： SCI
摘要： Rice false smut caused by the fungal pathogen Ustilaginoidea virens is becoming a destructive disease throughout major rice-growing countries. Information about its genetic diversity and population structure is essential for rice breeding and efficient control of the disease. This study compared the genome sequences of two U. virens isolates. Three SNP-rich genomic regions were identified as molecular markers that could be used to analyze the genetic diversity and population structure of U. virens in China. A total of 56 multilocus sequence types (haplotypes) were identified out of 162 representative isolates from 15 provinces covering five major rice-growing areas in China. However, the phylogeny, based on sequences at individual SNP-rich regions, strongly conflicted with each other and there were significant genetic differences between different geographical populations. Gene flow between the different geographical populations and genetic differentiation within each geographical population were also detected. In addition, genetic recombination and genetic isolation resulting from geographic separation was also found.
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