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林业科学 ›› 2008, Vol. 44 ›› Issue (9): 82-86.doi: 10.11707/j.1001-7488.20080915

• 论文 • 上一篇    下一篇

松树脂溃疡病菌及其近缘种AFLP分析*

廖太林1,2 叶建仁1 陈建东3   

  1. (1. 南京林业大学 南京210037; 2. 江苏昆山出入境检验检疫局 昆山215301; 3. 江苏出入境检验检疫局 南京210009)
  • 收稿日期:2007-10-08 修回日期:1900-01-01 出版日期:2008-09-25 发布日期:2008-09-25
  • 通讯作者: 叶建仁

AFLP Analysis of Fusarium circinatum and Relative Species

Liao Tailin1,2,Ye Jianren1,Chen Jiandong3   

  1. (1. Nanjing Forestry University Nanjing 210037; 2. Kunshan ExitEntry Inspection and Quarantine Bureau of China Kunshan 215301; 3. Jiangsu ExitEntry Inspection and Quarantine Bureau of China Nanjing 210009)
  • Received:2007-10-08 Revised:1900-01-01 Online:2008-09-25 Published:2008-09-25

摘要:

利用AFLP分子标记技术对松树脂溃疡病菌及其近缘种进行DNA 指纹分析,筛选出10对多态性较高的引物。上述引物在供试的9种17个菌株中共扩增出298条带,其中有多态性带283条, 多态性位点百分率为94.97%。每对引物产生的多态性位点百分率在89.29%~100%之间,表明松树脂溃疡病菌及其近缘种间在DNA水平上存在广泛变异。根据AFLP标记结果计算松树脂溃疡病菌及其近缘种间的相似系数,对它们的亲缘关系进行定量描述。聚类分析结果表明,菌株间的聚类与生物学种分类的结果一致。分析引物E AT/M CAA绘制的镰刀菌AFLP指纹图谱遗传多样性,确定李瑟组镰刀菌各交配群的特异带、差异带,区分供试的7个交配群。

关键词: 松树脂溃疡病菌, AFLP, 亲缘关系, 鉴定

Abstract:

AFLP fingerprinting analysis of Fusarium circinatum Nirenberg and O'Donnell and relative species was carried out. Ten primer paris that could generated abundant polymorphism fragments were screened out. Total 298 nucleotide acid fragments were amplified with the primers from the template of the seventeen strains of Fusarium spp., DNA and among\|them 283 fragments among were polymorphic. Percentage of polymorphism fragments produced by each pair of AFLP primer pair was 94.97% in average, and varied from 89.29%~100%. All these data indicated that considerable genetic variation existed among F. circinatum and relative species at DNA level. Molecular genetic distances among Fusariumspp. were calculated, and the relationship among them was described quantitatively. Compared with biological species. The result of cluster analysis were basically similar to the phenotypic classification of species. Analysis of genetic diversity of E\|AT/M\|CAA AFLP fingerprinting of Fusarium spp. detormined, unique and different bands for each species and all Fusariumsection Liseolatested were identified based on the E AT/ M CAA AFLP fingerprinting.

Key words: Fusarium circinatum, AFLP, genetic relationship, identification