
烟粉虱B型与Q型种群遗传多样性的AFLP分析
Analysis of genetic diversity of Bemisia tabaci biotypes B and Q using AFLP
刘国霞1,2**,褚 栋1,2 ,高长生1,2,3
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作者单位:1.山东省农业科学院高新技术研究中心 山东省作物与畜禽品种改良生物技术重点实验室 济南 250100;2.农业部黄淮海作物遗传改良与生物技术重点开放实验室 济南 250100;3.青岛农业大学农学与植物保护学院 青岛 266109
中文关键词:烟粉虱;遗传多样性;AFLP
英文关键词:Bemisia tabaci, genetic diversity, AFLP
中文摘要: 烟粉虱Bemisia tabaci(Gennadius)是由多种生物型或物种组成的复合种。Q型烟粉虱在我国部分地区正在取代B型烟粉虱成为优势生物型。烟粉虱Q型与B型遗传多样性比较研究为解析这2种生物型入侵的遗传学基础具有重要的意义。本文利用AFLP技术研究了Q型(包括Q1型、Q2型)、B型烟粉虱种群的遗传多样性。结果表明:Q型烟粉虱遗传多样性高于B型烟粉虱;Q1型烟粉虱各项遗传多样性指数均接近于Q2型。最后探讨了AFLP与SSR分子标记的各自特点。
英文摘要: Bemisia tabaci(Gennadius)is a species complex comprised of many biotypes. Biotype Q is replacing biotype B to become the predominant biotype in parts of China.The comparison of genetic diversity between biotypes B and Q is important to comprehend the genetic basis of the two biotypes’ competition. The AFLP method was used to study the population genetic diversity of the Q1,Q2 and B biotype. The results show that the genetic diversity of biotype Q is higher than that of B, and that of Q1 similar to that of Q2. Finally, the characteristics of AFLP and SSR are discussed.