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园艺学报 ›› 2011, Vol. 38 ›› Issue (5): 930-938.

• 观赏植物 • 上一篇    下一篇

三角紫叶酢浆草叶色变异株系的RAPD和ISSR标记初步鉴定

胡 甦1,王永清2,* ,陶 炼2, 付 燕3, 杨 芩4   

  1. 1四川农业大学林学院,四川雅安 625014;2四川农业大学园艺学院,四川雅安 625014;3黔东南民族职业技术学院植物组培中心,贵州凯里 556000;4凯里学院环境与生命科学学院,贵州凯里 556011)
  • 收稿日期:2010-09-14 修回日期:2011-05-06 出版日期:2011-05-25 发布日期:2011-05-25
  • 通讯作者: 王永清

Preliminary Identification of Leaf Color Mutational Strain from Oxalis triangularis Using RAPD and ISSR Markers

HU Su1,WANG Yong-qing 2,* ,TAO Lian2,FU Yan3,and YANG Qin4   

  1. 1 College of Forestry,Sichuan Agricultural University,Ya’an,Sichuan 625014,China;2 College of Horticulture,Sichuan Agricultural University,Ya’an,Sichuan 625014,China;3 Center for Plant Tissue Culture,Qiandongnan Nationality Professional Technology College,Kaili,Guizhou 556000,China;4 College of Environmental and Life Science,Kaili University,Kaili,Guizhou 556011,China)
  • Received:2010-09-14 Revised:2011-05-06 Online:2011-05-25 Published:2011-05-25
  • Contact: WANG Yong-qing

摘要: 以三角紫叶酢浆草叶色变异株系和其野生型植株为材料,对其遗传物质进行分子水平上的初步检测。采用DNA混合样本池法,构建变异型样本池和野生型样本池,并以这两个DNA池做模板分别进行RAPD-PCR和ISSR-PCR 扩增。从70个RAPD随机引物和100个ISSR随机引物中分别筛选出2个RAPD特异引物(S76,S118)和2个ISSR特异引物(UBC818,UBC868),均能在上述两个DNA池之间扩增出稳定的差异性条带共6条。其中,变异株系的差异性缺失带S118 700-800测序成功,其序列包含编码叶绿体光系统Ⅰ第Ⅶ亚基的基因。研究结果表明,与其野生型相比,该叶色变异株系的确发生了遗传物质的变化,且在一定继代范围内能通过无性繁殖方式稳定存在。

关键词: 三角紫叶酢浆草, 叶色变异, 体细胞无性系变异, RAPD, ISSR

Abstract: A leaf color mutational strain and the wild type of Oxalis triangularis were identified preliminarily at the molecular level. DNA-pooling method was used in this study to establish the DNA-pools of the wild type and the mutational type,respectively. These DNA-pools were used as templates for RAPD-PCR and ISSR-PCR,respectively. Two specific RAPD primers,i.e.,S76 and S118,and two specific ISSR primers,i.e.,UBC818 and UBC868,were selected from 70 RAPD primers and 100 ISSR primers,respectively,producing 6 specific bands. And these specific bands could identify the two DNA-pools mentioned above. The sequencing result of the absent specific band,S118 700-800,in the mutational type showed that the sequence contained a gene coding for subunit Ⅶ,i.e.,PsaC protein,in photosystemⅠ. The results indicated that compared with the wild type,the genetic material of the mutational strain had changed indeed,and it could maintain stable in the given subcultures in this study.

Key words: Oxalis triangularis A. St.-Hil., leaf color mutation, somaclonal variation, RAPD, ISSR

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