水产学报2012，Vol.36Issue(9)：1358-1366,9.DOI:10.3724/SP.J.1231.2012.28004
香港巨牡蛎与长牡蛎种间杂交及早期杂种优势分析
Analysis of the early heterosis for interspecific hybrids between Crassostrea hongkongensis and C.gigas
摘要
Abstract
To improve the oyster phenotypic character,9 Crassostrea gigas families(HH11 ,HH12,HH13……HH33),9 C. hongkongensis families ( GG11 ,GG12,GG13……GG33) and 45 interspecific hybrid families (C. hongkongensis ♀ × C. gigas ♂ ) ( HG11 , HG12, HG13 …… HG153 ) were established by the method of unbalanced nest design(one male to three female) in July 2010. Moreover,their early phenotypic character, heterosis potence and heterosis were examined under the identical conditions. These results show that the hybrid weakness of fertilization and hatching levels (hp ＜ - 1 ) were observed among interspecific hybrid families due to the gametal incompatibility and individual variation. On the whole,the outbreeding depression of larvae growth was observed with the significant hybrid weakness (hp ＜ - 1) ; the heterosis potence of larval survival ranged from - 1 to 1 , and survival advantage occurred without the remarkable level; the significantly metamorphic heterosis ( hp ＞ 1 ) was investigated during the planktonic stage. Cytology and molecular biology of interspecific hybridization were further researched on the base of numerous hybrids with genetic information.关键词
香港巨牡蛎/长牡蛎/种间杂交/杂种潜力/杂种优势Key words
Crassostrea hongkongensis/ C. gigas/ interspecific hybridization/ heterosis potence/ heterosis分类
生物科学引用本文复制引用
张跃环,王昭萍,闫喜武,苏家齐,张辉,姚托,霍忠明,于瑞海,杨鹏..香港巨牡蛎与长牡蛎种间杂交及早期杂种优势分析[J].水产学报,2012,36(9):1358-1366,9.基金项目
国家自然科学基金项目(31172403) （31172403）
国家重点基础研究发展规(2010CB126406) （2010CB126406）
