Development of genetic markers distinguishing two invasive fire ant species (Hymenoptera: Formicidae) and their hybrids
Keywords:
Solenopsis invicta, Solenopsis richteri, SNPAbstract
Three single nucleotide polymorphism (SNP) markers were developed that were completely diagnostic in distinguishing the 2 fire ant species Solenopsis invicta Buren and Solenopsis richteri Forel (Hymenoptera: Formicidae). Although a 4th marker was not fully diagnostic, it was still useful given that one of the variants was confined to S. richteri. Joint use of these markers was shown to consistently distinguish hybrids from the 2 parental species. The development of these SNP markers distinguishing the 2 introduced fire ant species and their hybrids represents a significant advance over existing methods because this method is robust, easily transferable, and cost effective.
Sumario
Se desarrollaron marcadores de tres polimorfismo nucleótido singulares (PNS) que fueron completamente diagnósticos para distinguir 2 especies de hormigas de fuego Solenopsis invicta Buren y Solenopsis richteri Forel (Hymenoptera: Formicidae). Aunque el cuarto marcador no fue totalmente diagnóstico, toadavia fue útil dado que una de las variantes fue limitada a S. richteri. Se mostró que el uso conjunto de estos marcadores puede distinguir consistentemente los híbridos de las 2 especies parentales. El desarrollo de estos marcadores PNS que distinguen las 2 especies de hormigas de fuego introducidas y sus híbridos representa un avance significativo sobre los métodos existentes ya que este método es robusto, fácilmente transferible y rentable.
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