PTCHD3 and influenza: Triticones have been investigated for a wide range of biological activities including anti‐influenza (Wang et al., 2018), anti‐leishmanial (de Almeida et al., 2017) and phytotoxicity (Sugawara et al., 1988; Hallock et al., 1993; Masi et al., 2014); however, their role in the pathogenicity of Ptr on wheat has never been directly tested.