Gynogenesis was thought to be a useful method to generate inbred lines in fish. In this study, analysis of 5-8 heterozygous loci in Japanese flounder (Paralichthys olivaceus) was used to measure the increment of homozygosity in meiogynogenetic diploid (Meiotic-A & Meiotic-B) and mitogynogenetic diploid (Mitotic-A). The result showed all homozygosity in Mitotic-G1, while a high percentage of heterozygosity in Meiosis-A and Meiosis-B except Poli11TUF. The rate of heterozygosity in meiogynogenetic progenies at...
【基金】
国家科技攻关项目(96-920-44-01)
【更新日期】
2006-04-11
【分类号】
S917.4
【正文快照】
人工雌核发育是快速建立纯系的有效手段,一次卵裂雌核发育相当于8~10个世代全同胞交配,在一次卵裂雌核发育的基础上再进行一次减数雌核发育就可以获得纯系(Wu et al,1981;Streinger et al,1981),在鱼类遗传育种中,对于快速准确的选育优良品种具有十分重要的意义。同时,人工雌核