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PVP在桑叶总DNA提取中的应用

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采用CTAB(Cetyltrimethyle Ammonium Bromide,十六烷基三乙基溴化铵)缓冲液,附加1%PVP(Polvvinylpyrrolidone,聚乙烯吡咯烷酮),用平衡酚-氯仿-异戊醇-核糖棱酸酶法提取桑叶总DNA,经全自动分光光度计SmartSpecTM检测,结果表明用附加PVP的CTAB缓冲液提取的桑叶总DNA纯度高,A260/A280比值在1.80~1.90之间,多糖、蛋白质、RNA去除较彻底,能满足对总DNA质量要求较高的试验,如AFLP分析。
APPLICATION OF PVP IN TOTAL DNA EXTRACTION IN MULBERRY
CTAB ( cetyltrimethyl ammonium bromide) buffer supplemented with 1% PVP (polyvinylpyrrolidone) was used to extract total DNA of mulberry with the method ofphenol- chloroform- isopentanol- endoribonucleases. Assay of the extracted DNA with martSpecTM3000(America)indicated that tlhe purity of the extracted DNA with PVP in CTAB buffer was very high,the value of A260/A280 being 1.80~ 1.90.The polyhexose,protein and RNA were eliminated completely.the extracted DNA can be used for AFLP.

王卓伟、余茂德、鲁成

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农业部蚕桑学重点实验室西南农业大学蚕丝学院

PVP 桑总DNA 纯度

重庆市科委资助项目

2001

西南大学学报(自然科学版)
西南大学学报编辑部

西南大学学报(自然科学版)

CSCD北大核心
影响因子:0.825
ISSN:1673-9868
年,卷(期):2001.23(1)
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