ZHANG Yu,WEI Tingzhou,ZOU Dafang,et al.Establishment and Application of SCoT Molecular Marker System for Genetic Stability of Rapid Propagation Plants of Bletilla striata[J].Northern Horticulture,2018,42(04):152-159.[doi:10.11937/bfyy.20172477]
白芨SCoT分子标记技术体系的建立及其在快繁苗遗传稳定分析中的应用
- Title:
- Establishment and Application of SCoT Molecular Marker System for Genetic Stability of Rapid Propagation Plants of Bletilla striata
- Keywords:
- Bletilla striata(Thunb.) Rchbf; start codon targeted polymorphism marker; reaction system; rapid propagation plant; genetic stability
- 文献标志码:
- A
- 摘要:
- 以4个不同继代的白芨快繁苗为试材,采用L16(45)正交实验设计,建立了白芨SCoT-PCR的反应体系,并利用该体系分析不同继代的白芨快繁苗遗传稳定性。结果表明:白芨的SCoT-PCR最佳反应体系(20 μL)中包含2.500 mmol?L-1 Mg2+,0.25 mmol?L-1 dNTPs,1.50 U Taq DNA聚合酶,1.000 μmol?L-1 引物,10 ng模板DNA。遗传稳定性分析发现,SCoT引物均能在4个不同继代的白芨快繁苗中扩增出清晰、丰富而稳定的条带,但每个引物的条带均无多态性。说明白芨快繁苗并未发生变异,其遗传稳定性较好。
- Abstract:
- SCoT-PCR reaction system established by L16(45)orthogonal experimental design was targeted to sub-culture rapid propagation of Bletilla striata.Genetic stabilities of those sub-culture propagated plantlets were evaluated by this system.The results showed that an optimal reaction system of Bletilla striata contained 2.500 mmol?L-1 Mg2+,0.25 mmol?L-1 dNTPs,1.50 U Taq DNA polymerase,1.000 μmol?L-1 primer as well as DNA template 10 ng.Also,clear,rich and stable bands were observed in each sub-culture rapid propagation based on SCoT-PCR amplification system without polymorphism.All in all,rapid propagation of Bletilla striata kept genetic stability without mutation from generation to generation.
参考文献/References:
[1]中国植物志编辑委员会.中国植物志第十八卷[M].北京:科学出版杜,1999.
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备注/Memo
第一作者简介:张瑜(1990-),女,四川自贡人,硕士研究生,研究方向为园林植物与观赏园艺。E-mail:vividz2010@126.com.