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核农学报  2014 

适宜多基因型青杨杂种叶片再生体系建立

DOI: 10.11869/j.issn.100-8551.2014.06.0978, PP. 978-984

Keywords: 青杨杂种,多基因型,叶片分化,培养基

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Abstract:

以青杨杂种全同胞家系内30个基因型的叶片为外植体,研究培养基、基因型及基因型×培养基互作效应对青杨杂种叶片分化的影响,筛选适合多基因型青杨叶片分化的广谱型培养基,为对青杨从群体水平进行遗传转化和多倍体诱导奠定技术基础。研究结果表明:(1)基因型、培养基、基因型×培养基互作效应对青杨杂种叶片分化的影响极显著。(2)筛选出适合多基因型叶片分化的广谱型培养基为MS+6-BA0.4mg·L-1+NAA0.05mg·L-1,可满足56.7%的青杨杂种基因型叶片分化,分化率可达70%以上。研究认为:在对群体再生生产中,应充分利用基因型×培养基互作效应,通过广谱型培养基实现大多数基因型青杨杂种叶片分化体系建立,并通过特殊培养基解决特殊基因型的青杨杂种叶片分化体系建立问题。

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