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三倍体长牡蛎(Crassostrea gigas)雌性怀卵量在0～2000万,雄性精量在0～1亿,大大低于正常二倍体。三倍体生殖腺发育受阻,大部分停留在增殖期和休止期,一部分虽发育至生长期和成熟期,但与同期的二倍体比较,生殖腺发育差。部分三倍体配子能完成受精作用,并发育至D形幼虫,但不能继续正常发育。卵子减数分裂后为含14～16条染色体的非整倍体。因此,三倍体长牡蛎是不育的。
The fecundity of female in Triploid oyster (Crassostrea gigas) is between 0 and 20 million and the male’s weight is between 0 and 100 million, much lower than that of normal diploid. Triploid gonadal development blocked, most stay in the proliferation and quiescence, although part of the development to the growth and maturation, but compared with the same period of diploids, gonadal development is poor. Part of the triploid gametes can complete the fertilization and develop to D-shaped larvae, but can not continue normal development. After the egg meiosis with 14 to 16 chromosome aneuploidy. Therefore, triploid oysters are sterile.