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Rapid detection of peach latent mosaic viroid by reverse transcription recombinase polymerase amplification.

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Reverse transcription recombinase polymerase amplification (RT-RPA), an isothermal nucleic acid amplification and detection method, was developed to detect peach latent mosaic viroid (PLMVd) in pollen and peach leaves. Results showed… Click to show full abstract

Reverse transcription recombinase polymerase amplification (RT-RPA), an isothermal nucleic acid amplification and detection method, was developed to detect peach latent mosaic viroid (PLMVd) in pollen and peach leaves. Results showed that this RT-RPA detection method can be performed at 42 °C and completed in approximately 5 min, and there was no cross-reactivity with other common peach viruses. A sensitivity assay showed that the RT-RPA assay was 1000-fold more sensitive than a regular RT-PCR. Moreover, the method was successfully applied to test field-collected samples. The newly developed RT-RPA assay is rapid, sensitive, and reliable method for detection of PLMVd in peach pollen and leaves and can be utilized as an effective technique in quarantine and viroid-free certification processes.

Keywords: detection; transcription recombinase; peach; recombinase polymerase; reverse transcription; amplification

Journal Title: Molecular and cellular probes
Year Published: 2020

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