Genetics and Adaptation of Soybean Cyst Nematode to Broad Spectrum Soybean Resistance.

ABSTRACT: The soybean cyst nematode (SCN) Heterodera glycines is a major threat to soybean production, made more challenging by the current limitations of natural resistance for managing this pathogen. The use of resistant host cultivars is effective, but, over time, results in the generation of virulent nematode populations able to robustly parasitize the resistant host. In order to understand how virulence develops in SCN, we utilized a single backcross BC₁F₂ strategy to mate a highly virulent inbred population (TN20), capable of reproducing on all current sources of resistance, with an avirulent one (PA3), unable to reproduce on any of the resistant soybean lines. The offspring were then investigated to determine how virulence is inherited on the main sources of SCN r

SUBMITTER: Gardner M 

PROVIDER: S-EPMC5345713 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature