›› 2014, Vol. 57 ›› Issue (10): 1238-1244.

• 研究论文 • 上一篇    下一篇

烟粉虱Q与B隐种mtCOI基因的遗传变异及其对利用CAPS标记进行隐种鉴别的影响

刘国霞1, 高长生2, 付海滨3, 褚栋2,*   

  1. (1. 山东省农业科学院生物技术研究中心, 山东省作物遗传改良与生态生理重点实验室, 济南 250100; 2. 青岛农业大学农学与植物保护学院, 山东青岛 266109; 3. 沈阳出入境检验检疫局, 沈阳110016)
  • 出版日期:2014-10-20 发布日期:2014-10-20
  • 作者简介:刘国霞, 女, 1977年生, 山东武城人, 硕士, 助理研究员, 主要从事有害生物检疫与生物入侵, E-mail: girlgx@sina.com

Variation of mtCOI gene in Bemisia tabaci (Hemiptera: Aleyrodidae) cryptic species Q and B and its effects on cryptic species identification based on cleavage amplified polymorphic sequence (CAPS) markers

LIU Guo-Xia1, GAO Chang-Sheng2, FU Hai-Bin3, CHU Dong2,*   

  1. (1. Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China; 2. College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao, Shandong 266109, China; 3. Shenyang EntryExit Inspection and Quarantine Bureau, Shenyang 110016, China)
  • Online:2014-10-20 Published:2014-10-20

摘要: 【目的】为了评估VspI,StyI和StuI为基础的线粒体细胞色素氧化酶I基因(mtCOI)酶切扩增多态性序列(cleaved amplified polymorphic sequence, CAPS)标记方法鉴别烟粉虱Q与B隐种的有效性。【方法】本研究对国内外烟粉虱种群的mtCOI基因进行了测序并鉴定了其隐种;在对464个Q隐种、98个B隐种mtCOI序列分析的基础上,利用VspI,StyI和StuI对Q与B隐种分别进行了CAPS标记验证。检索并比对了GenBank中烟粉虱Q与B隐种mtCOI序列中VspI,StyI和Stu I酶切位点分布情况。【结果】对国内外烟粉虱种群研究发现,以Vsp I为基础的CAPS标记方法能够有效鉴别实验中的Q与B隐种;利用StuI或StyI的CAPS标记方法无法有效鉴别Q与B隐种。对GenBank中烟粉虱Q与B隐种mtCOI序列比对发现,利用VspI,StyI和StuI为基础的CAPS标记方法不能有效鉴别Q与B隐种。【结论】以VspI,StyI和StuI为基础的CAPS标记方法鉴别Q与B隐种方面均有一定的局限性。

关键词: 烟粉虱, 隐种, mtCOI基因, 酶切扩增多态性序列(CAPS), 隐种鉴定

Abstract: 【Aim】The aim of the study is to test the validity of the VspI-, StyI- or StuI-based cleaved amplified polymorphic sequence (CAPS) markers of mitochondrial cytochrome oxidase I gene (mtCOI) for identification of Bemisia tabaci cryptic species Q and B. 【Methods】In this study, the mtCOI fragments from B. tabaci from China and abroad were sequenced and used to identify cryptic species. Based on the analyses of mtCOI sequences of 464 and 98 individuals from cryptic species Q and B, respectively, the restriction endonuclease enzyme VspI-, StyI-, or StuI-based CAPS markers was used to differentiate cryptic species Q and B for assessing its utility. The mtCOI sequences of B. tabaci cryptic species Q and B in GenBank were downloaded and the distribution of the recognition sites of VspI-,StyI-, and StuI- was analyzed. 【Results】The results showed that the individuals from China and abroad could be differentiated by using VspI-based CAPS markers effectively, but not by StyI- or StuI-based CAPS markers. The mtCOI sequence analysis showed that VspI-, StyI- or StuI-based CAPS markers could not differentiate cryptic species Q and B. 【Conclusion】VspI-, StyI- or StuI-based CAPS markers has limitations in identifying cryptic species Q from B.

Key words: Bemisia tabaci, cryptic species, mtCOI gene, cleaved amplified polymorphic sequence (CAPS), cryptic species identification