早冠是以鸭梨为母本，青云为父本杂交育成的自花结实早熟梨新品种。
The self-fruitful pear cultivar Zaoguan was derived from the cross between Yali and Qingyun.
以异源四倍体鲫鲤为父本，二倍体金鱼为母本通过倍间杂交形成三倍体鲫鱼。
The early embryonic development of triploid crucian carp which was generated by mating the males of the allotetraploid hybrids of red crucian carp(Carassius auratus red var.
利用从新西兰引进的优质杜泊绵羊为父本，分别与湖羊和小尾寒羊进行经济杂交试验。
Hu sheep and Han sheep used as female parents were crossbred economically with Dorper sheep imported from New Zealand, respectively.
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