太平洋牡蛎多倍体研究

A Review of Studies on Polyploid Pacific Oyster Crassostrea gigas

本文综述了太平洋牡蛎多倍体产生的途径、诱导方法、诱导结果、诱导机制、倍性鉴别方法、繁殖、生长、生理指标、抗逆性和口味等。提出。６－ＤＭＡＰ诱导牡蛎三倍体的技术前景广阔；四倍体与二倍体杂交的方法是产生三倍体的最好途径；四倍体是生物方法产生三倍体的中间材料，可以存活，应加大力度地研究和开发；三倍体的性腺能够发育，并可产生具有繁殖力的配子；在良好的环境里，四倍体的生长和抗逆性较二倍体优势；在繁殖季节，三倍体的生化组成等指标比二倍体高，口味较好。

The documents on the induction method, induction results, induction mechanism, themethods of distinguishing ploidy, reproduction, growth, physiological index,anti-adversity andtaste of Pacific oyster are reviewed in this paper. It is advanced that the prospect of inducingtriploid oyster using 6 - Dimethylaminopurine is broad. Hybridizing between diploid and te-traploid is the best method to induce triploids. As the tetraploid can survive and be the mediummaterial for producing triploids more attention should be paid to its study and development. Thesex gland Of the triploid can develop and produce gametes with reproductive ability.In a goodenvironment, the growth and anti-adversity of tetraploid are better these than those of diploid,while the triploid biochemical indexes are high and its taste is better than those of diploid duringreproductive season.