Studies on the Gamete Formation and Transmission Rate of a Set of Primary Trisomics in Chinese Cabbage Determination of n+1 Gamete Transmission Rate of Trisomics and Location of Gene Controlling 2n Gamete Formation in Chinese Cabbage (Brassica rapa) Chromosomal Localization of Photoperiod Sensitive Genic Male Sterile Genes Using Rice Primary Trisomics Selection and Identification of the SAT-chromosome Primary Trisomic of Flowering Chinese Cabbage Selection and Identification of the SAT-chromosome Primary Trisomic of Flowering Chinese Cabbage Studies on the Gamete Formation and Transmission Rate of a Set of Primary Trisomics in Chinese Cabbage