author keywords: polyploidy; evolutionary model; root-knot nematode

MeSH headings : Animals; Evolution, Molecular; Genome, Helminth; Phylogeny; Triploidy; Tylenchoidea / classification; Tylenchoidea / genetics

TL;DR: Three root-knot nematodes of the genus Meloidogyne descend from a single common hybridization event that yielded triplicated genomes with three distinguishable subgenomes, and ancestral loci where two of the three gene copies have been lost are less likely to have orthologs in Caenorhabditis elegans that are lethal when knocked down than are ancestral locu with surviving duplicate copies. (via Semantic Scholar)