Selective autophagy receptor‐encoding sequences in shallot transcriptome: In silico identification and expression patterns in response to asymptomatic shallot virus X infection

Abstract

Plant host tolerance is a key plant defence response to parasites, including viruses. This complex genetic trait involves multiple molecular mechanisms and, in particular, selective autophagy. Experimental data on the role of various selective autophagy factors and, in particular, cargo receptors in plant tolerance to viral infection are extremely limited. In this communication, I present the results of in silico identification of sequences in the shallot transcriptome encoding homologues of several selective autophagy receptors (SARs) related to the immune response and their expression patterns in response to asymptomatic infection of shallot virus X, a member of the genus Allexivirus, subgenus Acarallexivirus, within the family Alphaflexiviridae. The results obtained, together with the relevant literature data, suggest that some SARs likely to be involved in the regulation of the unfolded protein response and programmed cell death may play an active role in the formation of the state of tolerance of the host plant to allexivirus infection.