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Position: Home > Articles > Optimization of RAPD Conditions for Five Cymbidium Sw. Species Chinese Journal of Tropical Agriculture 2005,25 (4)

5种中国兰花RAPD反应条件的优化

作  者:
谢伟;乐超银;周艳;林直;何正权
单  位:
三峡大学图书馆;三峡大学生物技术研究中心
关键词:
中国兰花;兰属植物;观赏园艺;基因组DNA;RAPD
摘  要:
以5种中国兰花为材料,提取了其叶片基因组DNA;以春兰叶片的基因组DNA为模板,优化了RAPD的反应条件。试验结果表明:春兰基因组DNA的最适扩增条件为,25μL体系,Taq酶0.08U/μL,dNTP240μmol/L,Mg2+1.2mmol/L,随机引物0.5μmol/L,模板DNA6.2ng/μL;反应因子低于最适值,会导致扩增带数减少甚至无带;但若高于最适值,则会出现带的弥散或缺失。
译  名:
Optimization of RAPD Conditions for Five Cymbidium Sw. Species
作  者:
XIE Wei1) YUE Chaoyin1) ZHOU Yan1) LIN Zhi2) HE Zhengquan1)( 1 Biotechnology Research Center, Three Gorges University, Yichang, Hubei 443002;2 Library of Three Gorges University, Yichang, Hubei 443002 )
关键词:
orchid ; orchis ; Cymbidium Sw. ; genomic DNA ; RAPD ; ornamental horticulture
摘  要:
The method for isolating genomic DNA from 5 Cymbidium species was studied. Based on the genomic DNA, some essential factors that affect the result of RAPD were compared and the optimal RAPD system for Cymbidium was established. The results showed that the system with Taq DNA polymerase 0.08 U/μL, dNTP 210 μmol/L, Mg2+ 1.2 mmol/L, random primer 0.5 μmol/L, genomic DNA 6.2 ng/μL in 25 μL solution was suitable for Cymbidium amplification reaction.

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