Transcriptomics

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Survey of maize differential expression upon environmental exposure to the tar spot pathogen Phyllahcora maydis


ABSTRACT: Tar spot of maize, caused by Phyllachora maydis, is an emerging threat to crop production across the United States and Canada. Current effective management of the disease includes application of fungicides and use of partially resistant maize varieties. Several studies have focused on mapping of tar spot resistant loci from maize diversity panels. However, no additional analyses have been reported to further our understanding of the maize defense response to P. maydis. Therefore, prior to the availability of inoculation procedures, we performed transcriptome sequencing from maize leaf tissue exposed to P. maydis from a tar spot infested field and assessed differential gene transcript expression. Over the course of disease development, leaves were sampled at two timepoints: 10 days and 24 days post-exposure. Differentially expressed genes (DEGs) were determined by comparing gene transcript expression of the exposed samples to non-exposed controls at the respective timepoints.

ORGANISM(S): Zea mays Phyllachora maydis

PROVIDER: GSE296174 | GEO | 2025/07/01

REPOSITORIES: GEO

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