Segregation for Aborted Anthers in Hybrid Seedlings Using Citrus nobilis × C. deliciosa cv. Encore as the Seed Parent

摘要: In citrus, it has been suggested that hybrid seedlings with aborted anthers appear only from crosses of varieties having cytoplasm satsuma mandarin (Citrus unshiu Marc.) as a seed parent. However, in this paper, we reveal the appearance by using 'Encore' (C. nobilis Lour. × C. deliciosa Ten.) parent.When was crossed 'Minneola', 'Murcott', and 'Seminole', 8 out 61, 10 43, 7 26 had anthers, respectively, but Ponkan were all male-fertile. Approximately half 'Kiyomi' male-sterile (aborted anthers). These results probably support concept genotype is dominant-homozygous 'Encore', 'Murcott' 'Seminole' heterozygous for male sterility gene. The also suggest 'Minneola' differed other because different segregation ratio.