Article ; Online: Identification of individual root-knot nematodes using low coverage long-read sequencing.
PloS one
2021 Volume 16, Issue 12, Page(s) e0253248
Abstract: Root-knot nematodes (RKN; genus Meloidogyne) are polyphagous plant pathogens of great economic importance to agriculturalists globally. These species are small, diverse, and can be challenging for accurate taxonomic identification. Many of the most ... ...
Abstract | Root-knot nematodes (RKN; genus Meloidogyne) are polyphagous plant pathogens of great economic importance to agriculturalists globally. These species are small, diverse, and can be challenging for accurate taxonomic identification. Many of the most important crop pests confound analysis with simple genetic marker loci as they are polyploids of likely hybrid origin. Here we take a low-coverage, long-read genome sequencing approach to characterisation of individual root-knot nematodes. We demonstrate library preparation for Oxford Nanopore Technologies Flongle sequencing of low input DNA from individual juveniles and immature females, multiplexing up to twelve samples per flow cell. Taxonomic identification with Kraken 2 (a k-mer-based taxonomic assignment tool) is shown to reliably identify individual nematodes to species level, even within the very closely related Meloidogyne incognita group. Our approach forms a robust, low-cost, and scalable method for accurate RKN species diagnostics. |
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MeSH term(s) | Animals ; DNA, Helminth/genetics ; Female ; High-Throughput Nucleotide Sequencing ; Plant Diseases/genetics ; Plant Diseases/parasitology ; Tylenchoidea/classification ; Tylenchoidea/genetics |
Chemical Substances | DNA, Helminth |
Language | English |
Publishing date | 2021-12-01 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ISSN | 1932-6203 |
ISSN (online) | 1932-6203 |
DOI | 10.1371/journal.pone.0253248 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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