First report of root-lesion nematode (Pratylenchus goodeyi) parasitizing soybean (Glycine max) in Ethiopia

Abstract

Nematodes extracted from soil and infected root samples collected from soybean fields in southwest Ethiopia have revealed, for the first time, the presence of Pratylenchus goodeyi on soybean. Species identity was confirmed through morphological analysis (using light microscopy and scanning electron microscopy) and D2-D3 rDNA sequencing. A pathogenicity assay conducted under greenhouse conditions demonstrated that the tested soybean varieties are suitable hosts, with reproduction factor > 2 for P. goodeyi. Furthermore, the initial population density of P. goodeyi significantly affected the total fresh weight of the soybean plants, causing reduced plant height. Further research is necessary to assess its potential impact on soybean production at ranges of nematode densities and to develop effective management strategies.