生物技术通报 ›› 2018, Vol. 34 ›› Issue (4): 102-106.doi: 10.13560/j.cnki.biotech.bull.1985.2017-0686

• 技术与方法 • 上一篇    下一篇

稻曲病菌基因组DNA提取方法比较与小文库构建

伏荣桃1, 王剑1, 陈诚1, 龚学书1, 卢代华1, 罗曦1, 郑爱萍2   

  1. 1. 四川省农业科学院植物保护研究所 农业部西南作物有害生物综合治理重点实验室,成都 610066;
    2. 四川农业大学水稻研究所,成都 611130
  • 收稿日期:2017-08-21 出版日期:2018-04-20 发布日期:2018-05-04
  • 作者简介:伏荣桃,女,博士研究生,研究方向:水稻真菌病害;E-mail:furongtao@126.com
  • 基金资助:
    四川省财政创新能力提升工程项目(2016GYSH-014); 四川省农业科学院青年基金项目(2015JSCX-017)

Comparing the Methods of Isolating Genomic DNA and Construction of Its Small Genomic Library of Ustilaginoidea virens

FU Rong-tao1, WANG Jian1, CHEN Cheng1, GONG Xue-shu1, LU Dai-hua1, LUO Xi1, ZHENG Ai-ping2   

  1. 1. Key Laboratory of Integrated Pest Management on Crops in Southwest,Ministry of Agriculture Science,Institute of Plant Protection,Sichuan Academy of Agriculture Science,Chengdu 610066;
    2. Rice Research Institute,Sichuan Agricultural University,Chengdu 611130
  • Received:2017-08-21 Published:2018-04-20 Online:2018-05-04

摘要: 水稻稻曲病是由稻曲病菌引起的真菌病害,现已成为水稻重要的病害之一。旨在寻找一种最佳的稻曲病菌基因组DNA提取方法,并构建基因组小文库。采用CTAB、SDS和真菌DNA试剂盒3种提取方法提取稻曲病菌基因组DNA,并用Illumina系统测序分析,构建基因组小文库。结果显示,CTAB提取法能得到高质量的基因组DNA,小文库测序组装共得29 350 288碱基(bp)和17 908 Scaffold,总碱基的GC含量为49.79%。CTAB提取法是稻曲病菌基因组DNA最佳的提取方法,基因组小文库成功的构建为稻曲病菌的基因组gap的填补和致病相关基因的鉴定提供了数据资源。

关键词: 稻曲病菌, CTAB, SDS, 基因组小文库

Abstract: Rice false smut caused by Ustilaginoidea virens is one of important fungal diseases for rice. This experiment aimed to select an optimal method of isolating genomic DNA,and to construct small genomic library of U. virens. The genomic DNA of U. virens was extracted by 3 methods of CTAB,SDS,and fungal DNA isolation kit. The DNA sample was sequenced using Illumina system,and small genomic library was constructed. The results showed that the high-quality genomic DNA was obtained by CTAB. Meanwhile,the small genomic library of U. virens was contained 29 350 268 bases and 17 904 Scaffold,and the GC content was 49.79% of total bases. We found that CTAB was the best method of isolating genomic DNA of U. virens. The successful construction of the small genomic library provided data resource for filling the genome gap and identifying pathogenetic gene.

Key words: Ustilaginoidea virens, CTAB, SDS, small genomic library