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A new, sensitive and efficient method for taxonomic placement in the Eriophyoidea and virus detection in individual eriophyoids

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Abstract

Eriophyoids affect crops around the globe directly or indirectly as virus vectors. Eriophyoid systematics initiated over a century ago, yet more than 90% of their fauna remain undescribed. Morphological identification is challenging because of a limited number of traits, cryptic speciation and complex life cycle reported for many species in the group. Nucleic acids extraction for mite identification is challenging due to their microscopic size with researchers using pooled samples leading to polymorphisms and inconclusive results. Identification of mite virus vectors is a tiresome task that could be simplified with a protocol that allows for the detection of viruses in the individual specimen. This communication describes an innovative, highly efficient extraction and detection pipeline. Direct Reverse Transcriptase – Polymerase Chain Reaction (Drt-PCR) assays were implemented in the molecular identification of eriophyoids and detection of viruses present in their bodies. The reverse transcription step allows for amplification from a single mite or egg, as in addition to the genomic DNA, it incorporates the abundant transcripts of targeted genes, whereas it also allows for the amplification of viruses. This communication provides an efficient, sensitive and cost-effective alternative that can be implemented in pest identification and detection as well as biological and ecological studies.

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Acknowledgments

This work was funded by USDA/APHIS/PPQ/14-8130-0404-CA and Hatch project 1002361. We thank Ava Wait for useful comments on a draft of this paper.

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Correspondence to Tobiasz Druciarek.

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Druciarek, T., Lewandowski, M. & Tzanetakis, I. A new, sensitive and efficient method for taxonomic placement in the Eriophyoidea and virus detection in individual eriophyoids. Exp Appl Acarol 78, 247–261 (2019). https://doi.org/10.1007/s10493-019-00382-4

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  • DOI: https://doi.org/10.1007/s10493-019-00382-4

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