WI12_Rhg1 interacts with DELLAs and mediates soybean cyst nematode resistance through hormone pathways.

ABSTRACT: The soybean cyst nematode (SCN) is one of the most important causes of soybean yield loss. The major source of genetic resistance to SCN is the Rhg1 repeat, a tandem copy number polymorphism of three genes. The roles of these genes are only partially understood. Moreover, nematode populations virulent on Rhg1-carrying soybeans are becoming more common, increasing the need to understand the most successful genetic resistance mechanism. Here, we show that a Rhg1-locus gene (Glyma.18G02270) encoding a wound-inducible protein (WI12_Rhg1 ) is needed for SCN resistance. Furthermore, knockout of WI12_Rhg1 reduces the expression of DELLA18, and the expression of WI12_Rhg1 is itself induced by either JA, SA or GA. The content of the defence hormone SA is significantly

SUBMITTER: Dong J 

PROVIDER: S-EPMC8753364 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature