id	keyword
american_scientific_journal-1423	sequences
american_scientific_journal-1423	species
american_scientific_journal-1423	meloidogyne
american_scientific_journal-1423	study
american_scientific_journal-1423	research
american_scientific_journal-1423	nematodes
american_scientific_journal-1423	journal
american_scientific_journal-1423	sciences
american_scientific_journal-1423	knot
american_scientific_journal-1423	technology
american_scientific_journal-1423	root
american_scientific_journal-1423	dna
american_scientific_journal-1423	engineering