作者单位：Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, USA[1]USDA-ARS, Sugarbeet and Bean Research Unit, East Lansing, MI 48824, USA[2]USDA-ARS, Sugarbeet Research Unit, Fort Collins, CO 80526, USA[3]USDA-ARS, National Center for Genetic Resources and Preservation, Fort Collins, CO 80521, USA[4]
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