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五味子人工育种技术
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作者 刘文业 兰云波 《专业户》 2003年第3期16-16,共1页
中药材五味子的特殊医疗保健功效越来越为人们所青睐。但五味子的育种育苗却是一个难题,辽宁省宽甸县五味子良种繁育基地利用野生五味子培育出了优良的五味子新品种。其方法为:首先根据葡萄、梨等果树优良品种(系)间杂交(近交)易出现“... 中药材五味子的特殊医疗保健功效越来越为人们所青睐。但五味子的育种育苗却是一个难题,辽宁省宽甸县五味子良种繁育基地利用野生五味子培育出了优良的五味子新品种。其方法为:首先根据葡萄、梨等果树优良品种(系)间杂交(近交)易出现“后代超亲”的规律,对野生五味子进行品种优选提纯和驯化改良。主要做法是:在山上选一片野生五味子,当果实成熟时挑选果穗长、整齐、果粒大、紧凑、均匀,综合性状优良的柏株做为育种亲本保留下来, 展开更多
关键词 五味子 人工育种技术 野生资源 优选提纯 露天栽培驯化 修剪
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Development and application of biological technologies in fish genetic breeding 被引量:23
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作者 XU Kang DUAN Wei +4 位作者 XIAO Jun TAO Min ZHANG Chun LIU Yun LIU ShaoJun 《Science China(Life Sciences)》 SCIE CAS CSCD 2015年第2期187-201,共15页
Fish genetic breeding is a process that remolds heritable traits to obtain neotype and improved varieties.For the purpose of genetic improvement,researchers can select for desirable genetic traits,integrate a suite of... Fish genetic breeding is a process that remolds heritable traits to obtain neotype and improved varieties.For the purpose of genetic improvement,researchers can select for desirable genetic traits,integrate a suite of traits from different donors,or alter the innate genetic traits of a species.These improved varieties have,in many cases,facilitated the development of the aquaculture industry by lowering costs and increasing both quality and yield.In this review,we present the pertinent literatures and summarize the biological bases and application of selection breeding technologies(containing traditional selective breeding,molecular marker-assisted breeding,genome-wide selective breeding and breeding by controlling single-sex groups),integration breeding technologies(containing cross breeding,nuclear transplantation,germline stem cells and germ cells transplantation,artificial gynogenesis,artificial androgenesis and polyploid breeding)and modification breeding technologies(represented by transgenic breeding)in fish genetic breeding.Additionally,we discuss the progress our laboratory has made in the field of chromosomal ploidy breeding of fish,including distant hybridization,gynogenesis,and androgenesis.Finally,we systematically summarize the research status and known problems associated with each technology. 展开更多
关键词 fish genetic breeding genetic improvement biological method TRAITS new variety
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