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家蚕和中国野桑蚕远缘杂交茧丝性状的遗传学研究
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摘要:
对家蚕和野桑蚕远缘杂交后代茧丝遗传分析表明:两亲本茧丝性状差异远远大于家蚕品种间差异;全茧量、茧层率、丝长、纤度杂种F_1代偏向野桑蚕,没有杂种优势存在;回交一代接近家蚕,F_2代呈中间类型,各性状的趋势表现为野桑蚕
关键词:  家蚕 野桑蚕 远缘杂交 遗传
DOI:
基金项目:
Genetic Research on Outcross Between Domestic Silkworm and Wild Silkworm
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Abstract:
Progenies of outbreeding between domestic silkworm and wild silkorm were observed. Theresults showed that cocoon weight, cocoon shell weight, cocoon shell ratio, filament length andsize of F_1 were similar to those of their wild parent, the characters of BC_1 took after those of thedomestic silkworm parent, and those of F_2 were between those of parents, the general trend waswild silkworm
Key words:  Bombyx Mori,B. Mandarina,Outcross,Inheritance

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