The AP2/ERF transcription factor GmTINY mediates ethylene regulation of Rhg1-conferred resistance against soybean cyst nematode.

ABSTRACT: The soybean complex resistance locus Rhg1 is a primary contributor to the control of soybean cyst nematode (Heterodera glycines; SCN), a major threat to soybean production worldwide. Two genes within this locus, GmAAT_Rhg1 and GmSNAP18, are upregulated during SCN infection. In this study, we found that SCN-resistant soybean varieties exhibit elevated ethylene (ETH) production upon infection. Exogenous ETH application further increased GmAAT_Rhg1 and GmSNAP18 transcript levels and enhanced the SCN-resistance response. These genes are divergently transcribed from a shared promoter containing three ERELEE4 ethylene-responsive elements (AATTCAAA). Using yeast one-hybrid screening, we identified the AP2/ERF transcription factor GmTINY (Glyma.01G147600) as an ERELEE4-binding

SUBMITTER: He L 

PROVIDER: S-EPMC12281220 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature