Abstract
A rapid diagnostic method for Japanese yam mosaic virus (JYMV) infection in Chinese yam (Dioscorea polystachya) by a print-capture RT-PCR was developed. The cut surface of a rolled leaf of a JYMV-infected Chinese yam was stamped onto a nitrocellulose membrane. The clipped membrane was boiled in eluting solution to elute the RNA for use as the template in RT-nested PCR. Although JYMV RNA was detectable in most infected plants in the first PCR of the print-capture RT-PCR, it was detected from all samples in the nested PCR. The tissue-printed membranes could be preserved for at least 3 months at 4 °C for JYMV detection.
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Acknowledgements
The authors thank Masanobu Fukami for helpful comments on this work and Hirokazu Ueno and the Sasayama-Shinonome High School students for providing virus-infected and virus-free Tsukuneimo samples. HK was supported through funding from the Promotion of Pre-University Research Activities in Science Program by the Japan Science and Technology Agency.
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Mochizuki, T., Iwamoto, I., Atarashi, A. et al. Rapid and low-cost diagnosis of Japanese yam mosaic virus infection in Chinese yam (Dioscorea polystachya) leaves by a print-capture RT-PCR. J Gen Plant Pathol 83, 189–196 (2017). https://doi.org/10.1007/s10327-017-0719-6
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DOI: https://doi.org/10.1007/s10327-017-0719-6