ArticlePloS one2024
Phased chromosome-scale genome assembly of an asexual, allopolyploid root-knot nematode reveals complex subgenomic structure.
Article in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Resistance breaking Root-knot nematodes carry a fitness cost associated with defective feeding site development.PLoS pathogens · 2026Article
- Reproductive mode and ploidy are associated with distinct organization of clustered centromeric regions in Meloidogyne nematodes.Genome biology · 2026Article
- High-resolution genome assembly and linkage mapping in Meloidogyne hapla reveal non-canonical telomere repeats and recombination hotspots associated with effector proteins.PLoS pathogens · 2025Article
- A trehalase-derived MAMP triggers LecRK-V-mediated immune responses inScience advances · 2025Article
- High-fidelity annotated triploid genome of the quarantine root-knot nematode, Meloidogyne enterolobii.Scientific data · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We present the chromosome-scale genome assembly of the allopolyploid root-knot nematode Meloidogyne javanica. We show that the M. javanica genome is predominantly allotetraploid, comprising two subgenomes, A and B, that most likely originated from hybridisation of two ancestral parental species. The assembly was annotated using full-length non-chimeric transcripts, comparison to reference databases, and ab initio prediction techniques, and the subgenomes were phased using ancestral k-mer spectral analysis. Subgenome B appears to show fission of chromosomal contigs, and while there is substantial synteny between subgenomes, we also identified regions lacking synteny that may have diverged in the ancestral genomes prior to or following hybridisation. This annotated and phased genome assembly forms a significant resource for understanding the origins and genetics of these globally important plant pathogens.
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