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Molecular Diagnostics and Detection of Oomycetes on Fiber Crops

Institute of Bast Fiber Crops and Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China
Department of Biology, McMaster University, Hamilton, ON L8S 4K1, Canada
Author to whom correspondence should be addressed.
Plants 2020, 9(6), 769;
Received: 15 May 2020 / Revised: 12 June 2020 / Accepted: 15 June 2020 / Published: 19 June 2020
(This article belongs to the Special Issue Detection and Diagnostics of Fungal and Oomycete Plant Pathogens)
Fiber crops are an important group of economic plants. Traditionally cultivated for fiber, fiber crops have also become sources of other materials such as food, animal feed, cosmetics and medicine. Asia and America are the two main production areas of fiber crops in the world. However, oomycete diseases have become an important factor limiting their yield and quality, causing devastating consequences for the production of fiber crops in many regions. To effectively control oomycete pathogens and reduce their negative impacts on these crops, it is very important to have fast and accurate detection systems, especially in the early stages of infection. With the rapid development of molecular biology, the diagnosis of plant pathogens has progressed from relying on traditional morphological features to the increasing use of molecular methods. The objective of this paper was to review the current status of research on molecular diagnosis of oomycete pathogens on fiber crops. Our search of PubMed identified nearly 30 species or subspecies of oomycetes on fiber crops, among which the top three species were Phytophthora boehmeriae, Phytophthora nicotianae and Pythium ultimum. The gene regions that have been used for molecular identifications of these pathogens include the internal transcribed spacer (ITS) regions of the nuclear ribosomal RNA gene cluster, and genes coding for translation elongation factor 1α (EF-1α) and mitochondrial cytochrome c oxidase subunits I and II (Cox 1, Cox 2), etc. We summarize the molecular assays that have been used to identify these pathogens and discuss potential areas of future development for fast, specific, and accurate diagnosis of oomycetes on fiber crops. View Full-Text
Keywords: fiber crops; oomycete; molecular identification; mitochondrial DNA; PCR assay fiber crops; oomycete; molecular identification; mitochondrial DNA; PCR assay
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MDPI and ACS Style

Wang, T.; Gao, C.; Cheng, Y.; Li, Z.; Chen, J.; Guo, L.; Xu, J. Molecular Diagnostics and Detection of Oomycetes on Fiber Crops. Plants 2020, 9, 769.

AMA Style

Wang T, Gao C, Cheng Y, Li Z, Chen J, Guo L, Xu J. Molecular Diagnostics and Detection of Oomycetes on Fiber Crops. Plants. 2020; 9(6):769.

Chicago/Turabian Style

Wang, Tuhong, Chunsheng Gao, Yi Cheng, Zhimin Li, Jia Chen, Litao Guo, and Jianping Xu. 2020. "Molecular Diagnostics and Detection of Oomycetes on Fiber Crops" Plants 9, no. 6: 769.

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