陈洪友, 屠丽红, 陈敏, 宋元君, 张曦. 用于脉冲场凝胶电泳指纹图谱分析的分区条带计数法的建立[J]. 上海预防医学, 2014, 26(9): 465-468.
引用本文: 陈洪友, 屠丽红, 陈敏, 宋元君, 张曦. 用于脉冲场凝胶电泳指纹图谱分析的分区条带计数法的建立[J]. 上海预防医学, 2014, 26(9): 465-468.
CHEN Hong-you, TU Li-hong, CHEN Min, SONG Yuan-jun, ZHANG Xi. Partition bands counting established for PFEG fingerprint analysis[J]. Shanghai Journal of Preventive Medicine, 2014, 26(9): 465-468.
Citation: CHEN Hong-you, TU Li-hong, CHEN Min, SONG Yuan-jun, ZHANG Xi. Partition bands counting established for PFEG fingerprint analysis[J]. Shanghai Journal of Preventive Medicine, 2014, 26(9): 465-468.

用于脉冲场凝胶电泳指纹图谱分析的分区条带计数法的建立

Partition bands counting established for PFEG fingerprint analysis

  • 摘要: 目的 建立操作简便、软件依赖性低、结果易于交流的脉冲场凝胶电泳(PFGE)指纹图谱分析新方法。方法 按PulseNet标准操作规程,对44株副溶血性弧菌进行PFGE分型试验,分别利用分区条带计数法和BioNumerics软件对图谱进行分析,并以型别数、成簇数和Simpson's多样性指数(DI)对2种分析方法进行比较。结果 分区条带计数法可将44株菌分为32个型(DI=97.6%),能发现5簇。BioNumerics聚类分析可分为29个BN型(DI=95.5%),能发现4簇。在发现菌株成簇的能力上,2种分析方法的差异无统计学意义。结论 条带计数法能大大减少肉眼观察的图谱数量,具有操作简便、成本低、对软件依赖性小、结果显示简单直接的特点,能直观反映菌株条带的分布特征,因此应能满足分型信息共享与交流的要求。

     

    Abstract: Objective To establish a new method for PFGE fingerprint analysis, which is easy-to-operate, inexpensive, software-low-dependent and readily-exchangeable.Methods A group of 44 vibrio parahaemolyticus was subtyped according to PulseNet standardized PFGE protocol. The fingerprint was analyzed with new gel-partition bands counting method and BioNumerics clustering separately and then the results by the two methods were compared with type number, cluster number and Simpson's Index of Diversity (DI).Results The 44 isolates could be typed into 32 types and 5 clusters were found by gel-partition bands counting method (DI=97.6%). BioNumerics could type the same isolates into 29 types and 4 clusters were found (DI=95.5%). The difference in the ability of finding clusters between the two methods was not statistically significant.Conclusion Gel-partition bands counting method is based on the bands distribution among finger print and greatly reduces the number of visually observed spectrum, which is easy-to-operate, inexpensive, software-low-dependent and readily-exchangeable.

     

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