摘要
为获得罗非鱼新品种和创建尼罗型WY♀-YY♂繁育体系,采用不断回交的技术路线进行选育种。试验中罗非鱼新品种由奥利亚罗非鱼(Oreochromis aurea)与尼罗(Oreochromis Niloticus)超雄鱼杂交和回交选育而来。它由尼罗鱼的常染色体(N)、性染色体(Y)和奥利亚罗非鱼的性染色体(W)构成遗传基础,并形成NNWY♀-NNYY♂繁育体系。本实验主要介绍新品种的选育过程,同时对新品种鱼进行生物学研究,以期得到其一系列相关特性。
Continuous backcross was adopted for breeding.The new variety of tilapia was bred by cross and backcross of Oreochromis aurea and Oreochromis niloticus.Its genetic basis was constituted of the autosomal（N） and sex chromosome（Y） of O.aurea,and the sex chromosome（W） of O.niloticus,and the breeding system NNWY♀-NNYY♂ was formed.The paper mainly introduced the breeding process of new variety,and conducted biological study on the new variety to get a series of relevant characteristics.
出处
《淡水渔业》
CSCD
北大核心
2012年第5期73-74,88,共3页
Freshwater Fisheries
关键词
WY♀-YY♂型罗非鱼
繁育体系
新品种选育
the type of WY♀-YY♂Oreochromis； breeding system； breeding of the new species
