二倍体与三倍体太平洋牡蛎(Crassostrea gigas)的细胞学比较研究  

Comparative Study on the Cytology of Diploid and Triploid Pacific Oysters (Crassostrea gigas)

作　　者：孔令锋[1] 王昭萍[1] 于瑞海[1] 王如才[1] 

机构地区：[1]青岛海洋大学教育部水产养殖重点实验室,青岛266003

出　　处：《青岛海洋大学学报（自然科学版）》2002年第4期551-556,共6页Journal of Ocean University of Qingdao

基　　金：国家自然科学基金项目 (3990 0 111)

摘　　要：研究比较了太平洋牡蛎 (Crassostrea gigas)二倍体与三倍体鳃上皮细胞核长轴、外套膜与唇瓣结缔组织中血淋巴核径、直肠上皮细胞高度的大小。结果显示 ,三倍体鳃上皮细胞核长轴、外套膜与唇瓣结缔组织中血淋巴核径显著大于二倍体 (P<0 .0 1) ,而二倍体和三倍体直肠上皮细胞高度没有明显差别。本研究结果支持了多倍体的巨态性假说 ,并揭示了倍性对细胞核大小的影响。Diploid and triploid Pacific oysters( Crassostrea gigas ) are compared in this paper with regard to their gill epithelium nucleus major axis size, hemolymph nucleus diameter in the connective tissue of mantle and labial palps, and rectum epithelium height. The results show that the gill epithelium nucleus major axis size, hemolymph nucleus diameter in the connective tissues of mantle and labial palps are significantly ( P<0.01 ) larger in triploids than in diploids, no significant differences are found in rectum epithelium height between diploids and triploids. The results surpport the hypothesis of polyploid gigantism and show the effect of ploidy on nuclear size.

关 键 词：太平洋牡蛎 二倍体 三倍体 细胞学 细胞核 巨态性假说 

分 类 号：Q959.215.3[生物学—动物学]