Polymorphisms of microsatellite loci within invasive populations of Bemisia tabaci biotype Q
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Key Words：Bemisia tabaci biotype Q, polymorphism, microsatellite marker
Abstract： During the past several years, the Bemisia tabaci (Gennadius) Q-biotype has invaded China and become the predominant biotype by replacing the previously established B.biotype in some areas. B. tabaci’s genetic polymorphism could be influenced by the invasion process and pesticides used. The polymorphism information content (PIC) of 4 microsatellite loci in Q-biotype populations from Shandong Province was assessed and used to determine the genetic diversity of these populations. The results show that all 4 loci were moderately or highly polymorphic indicating that these loci are informative for determining the genetic diversity of invasive Q-biotype populations. These results provide a foundation for determining the utility of microsatellite markers in the invasive Q-biotype.