Tetraploids in Jinjiang oyster, Crassostrea rivularis, were induced by inhibiting the first polar body (PB1) with cytochalasin B (CB).

• 采用细胞松弛素B(CB)处理受精卵,抑制第一极体的排放,对近江牡蛎四倍体的诱导和培育进行了研究。