1. Molecular identification and analysis of cucurbits powdery mildew in Zhoukou District of Henan Province.
- Author
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ZHANG Yi, XU Kedong, CHEN Peipei, DUAN Sujuan, MENG Ping, QIAO Yue'e, and LI Chengwei
- Subjects
POWDERY mildew diseases ,PHYLOGENY ,CUCURBITACEAE ,TREE physiology ,MOLECULAR microbiology - Abstract
In this study, cucurbits powdery mildew in the Zhoukou region of Henan province were identified and analysed, the results provided the basis for pathogen de-fence and systematic evolution. In order to identify the pathogen, the characteristics of histological morphological, molecular identification of ribosomal DNA internal tran-scribed spacer (ITS) and phylogenetic trees were conducted. The results indicated that the cucurbits powdery mildew in Zhoukou belonged to Sphaerotheca fuliginea. Phyloge-netic tree revealed that the differences between cucurbits powdery mildew and legumes, verbena hybrida, medusagyne oppositifolia powdery mildew were small, meanwhile the pathogen of Zhoukou was highly conserved with USA, Japan, Australia and UK. We speculated that the evolution of cucurbits powdery mildew may not be directly related to areas but to its own physiological race. [ABSTRACT FROM AUTHOR]
- Published
- 2013