DNA Template Preparation and Technology System Building for AFLP Analysis of Chinese Cabbage (Brassica campestris L. ssp pekinensis)
文献类型： 外文期刊
作者： Meng, Shuchun 1 ; Zhang, Haiying 1 ; Liu, Ling 1 ; Liu, Yumei 2 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Beijing 100097, Peoples R China
2.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
关键词： Chinese cabbage (Brassica campestris L. ssp pekinensis);DNA isolation;AFLP;silver-staining
期刊名称：INTERNATIONAL SYMPOSIUM ON VEGETABLE PRODUCTION, QUALITY AND PROCESS STANDARDIZATION IN CHAIN: A WORLDWIDE PERSPECTIVE
ISSN： 0567-7572
年卷期： 2012 年 944 卷
页码：
收录情况： SCI
摘要： In this study, the improved method of CTAB was used to extract genomic DNA from tender leaves of Chinese cabbage (Brassica campestris L. ssp. pekinensis). DNA restriction reaction, ligase reaction, pre-amplification and selective amplification were optimized for establishment of AFLP reaction system and clear DNA fingerprints. The results indicated: (1) The effects of restriction of DNA, lingation of oligonucleotide adapters as well as amplification should be affected by the quality of genomic DNA. Clear finger map were obtained by the improved CTAB method which is suitable for AFLP analysis on Chinese cabbage. (2) There were 150 ng DNA template, EcoRI 1.25U, MseI 1.25U, 5xReaction Buffer, in the best 12.5 mu l system of restriction at 37 degrees C for 4 h. The optimum temperature in the lingation system was 20 degrees C for 2.5 h. (3) The clear and stable amplification patterns could be obtained from six Primer pairs (E-AAC/M-CAG, E-AAG/M-CAC, E-ACA/M-CTG, E-ACT/M-CAC, E-ACT/M-CTT, E-ACT/M-CTC). Based on the silver-staining AFLP system, this paper might provide a method for the further study in the field of molecular marker in genetic diversity, new cultivars breeding and genetic relationship in Chinese cabbage.
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