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波士顿蕨~(60)Co-γ射线辐射育种研究
Authors
余蓉培
李东
+3 more
王頔
石雷
詹选怀
Publication date
1 January 2018
Publisher
Doi
Cite
Abstract
以波士顿蕨(Nephrolepis exaltata‘Bostoniensis Murano’)的绿色球状体(Green Globular Bodies,GGB)为辐照材料,采用不同剂量的~(60)Co-γ射线处理,结合组织培养技术进行育种研究。结果表明:绿色球状体辐照半致死剂量约为128 Gy。随着辐照剂量的增加,绿色球状体的增殖和分化受到抑制。绿色球状体辐射表型损伤表现为:颜色变深,变紧实,增殖和分化受抑制;细胞学损伤表现为:胚性细胞减少,出现微核。50~200 Gy剂量下,随着辐照剂量的增加,绿色球状体分化植株变矮,叶形变异率增加。在150 Gy剂量下筛选得到叶片变异性状显著的突变体Neg1
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Last time updated on 09/06/2022