Abstract
Virus diseases cause significant losses in maize worldwide. A virus‐resistant synthetic maize (Zea mays L.) population, OhVRS‐1 (Reg. No. GP‐583, PI 665687), was developed by the USDA Corn and Soybean Research Unit and released as a germplasm resource by Ohio State University, the Ohio Agriculture Research and Development Center, and the USDA. OhVRS‐1 is a synthetic population made up of tropical and Corn Belt germplasm selected for high levels of resistance to viral diseases, and B73‐selected for agronomic traits. The population has undergone one complete cycle of S1 recurrent selection for resistance to Maize dwarf mosaic virus, Sugarcane mosaic virus (SCMV), and Maize chlorotic dwarf virus. The OhVRS‐1 cycle‐1 was significantly more resistant to SCMV and had a reduction in days to mid‐silk when compared with cycle‐0.
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