Host Preference Associated With Deoxynivalenol and Nivalenol Chemotypes in Fusarium graminearum, F. asiaticum, and F. meridionale.

ABSTRACT: Members of Fusarium sambucinum species complex (FSAMSC), major mycotoxigenic phytopathogens, affect cereal crops such as wheat and rice. The predominant members of FSAMSC, F. graminearum, F. asiaticum, and F. meridionale, are distinguished by their trichothecene chemotypes, primarily nivalenol (NIV) and deoxynivalenol (DON) chemotype. While DON has been linked to virulence in certain FSAMSC species, NIV chemotypes exhibit increased aggressive in rice, whereas DON chemotypes preferentially infect wheat. However, the genetic factors driving these chemotype-host associations remain unclear. This study investigated the genetic linkage between DON/NIV chemotype and host preference through molecular and phenotypic analyses. RNA sequencing revealed host-dependent differential expression of tricho

SUBMITTER: Liu X 

PROVIDER: S-EPMC12904605 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature