SRP358187 PRJNA803261 Analysis for Exploring Gray Mold Resistance-Related Genes in Onion (Allium cepa L.) The exploring genes related to gray mold resistance in onion and their application to breeding of resistant onion lines will support effective and ecological control methods of the disease. In vitro gray mold infection was conducted with a resistant and a susceptible onion line, and inoculated leaf samples were collected for obtaining transcript sequences in time series.