Plants (Sep 2019)

Molecular Basis of Soybean Resistance to Soybean Aphids and Soybean Cyst Nematodes

  • Surendra Neupane,
  • Jordan M Purintun,
  • Febina M Mathew,
  • Adam J Varenhorst,
  • Madhav P Nepal

DOI
https://doi.org/10.3390/plants8100374
Journal volume & issue
Vol. 8, no. 10
p. 374

Abstract

Read online

Soybean aphid (SBA; Aphis glycines Matsumura) and soybean cyst nematode (SCN; Heterodera glycines Ichninohe) are major pests of the soybean (Glycine max [L.] Merr.). Substantial progress has been made in identifying the genetic basis of limiting these pests in both model and non-model plant systems. Classical linkage mapping and genome-wide association studies (GWAS) have identified major and minor quantitative trait loci (QTLs) in soybean. Studies on interactions of SBA and SCN effectors with host proteins have identified molecular cues in various signaling pathways, including those involved in plant disease resistance and phytohormone regulations. In this paper, we review the molecular basis of soybean resistance to SBA and SCN, and we provide a synthesis of recent studies of soybean QTLs/genes that could mitigate the effects of virulent SBA and SCN populations. We also review relevant studies of aphid−nematode interactions, particularly in the soybean−SBA−SCN system.

Keywords