Totally 30 strains of Cytospora chrysosperma causing poplar canker,derived from ten provinces in China were classified into two clusters based on the cluster analysis of colony characteristics. The first cluster was s...Totally 30 strains of Cytospora chrysosperma causing poplar canker,derived from ten provinces in China were classified into two clusters based on the cluster analysis of colony characteristics. The first cluster was separated into the geographic groups of Xinjiang,Beijing-Northeast and Shandong and the second cluster was separated into the geographic groups of Inner Mongolia and Sichuan-Gansu-Shaanxi-Qinghai. In ferm of RAPD makers,the 30 strains were also separated into two clusters by the cluster analysis. The first cluster was classified into the geographic groups of Beijing,Xinjiang,Liaoning,Gansu-Qinghai and Shandong-Heilongjian-Jilin-Shaanxi. The second cluster was separated into the geographic groups of Inner Mongolia and Sichuan. The results showed a clear relationship between the geographical origin and the colony characteristics or genetic diversity of the pathogenic fungus.展开更多
基金Technology Infrastructure Subprojects of Fungi Resources Standardization Finishing Integration in Heilongjiang Province(2005DK20127-9)
文摘Totally 30 strains of Cytospora chrysosperma causing poplar canker,derived from ten provinces in China were classified into two clusters based on the cluster analysis of colony characteristics. The first cluster was separated into the geographic groups of Xinjiang,Beijing-Northeast and Shandong and the second cluster was separated into the geographic groups of Inner Mongolia and Sichuan-Gansu-Shaanxi-Qinghai. In ferm of RAPD makers,the 30 strains were also separated into two clusters by the cluster analysis. The first cluster was classified into the geographic groups of Beijing,Xinjiang,Liaoning,Gansu-Qinghai and Shandong-Heilongjian-Jilin-Shaanxi. The second cluster was separated into the geographic groups of Inner Mongolia and Sichuan. The results showed a clear relationship between the geographical origin and the colony characteristics or genetic diversity of the pathogenic fungus.
