Genetic variability of spined soldier bugs (Hemiptera: Pentatomidae) sampled from distinct field sites and laboratory colonies in the United States
Keywords:
Podisus maculiventris, population genetics, mass rearing, AFLPAbstract
The spined soldier bug, Podisus maculiventris (Say), is an important biological control agent of agricultural and forest pests; and it preys on eggs and larvae of lepidopteran and coleopteran species. Genetic variability among field samples collected from Michigan, Mississippi, Missouri, Florida and established laboratory colonies was examined using Amplified Fragment Length Polymorphism-Polymerase Chain Reaction (AFLP-PCR). Four AFLP primer pairs generated a total of 340 molecular markers for evaluation. Results from Analysis of Molecular Variance showed that the majority of the genetic variation occurred within populations (individuals from each sample site). Nei’s method indicated reduced genetic diversity in laboratory populations compared to field populations. No major differences or deficiencies were apparent among the field samples from different areas or among the laboratory reared samples. We conclude that field populations are panmictic and laboratory reared spined soldier bug could be useful as biological control agents in the field.
La chinche espinosa soldado, Podisus maculiventris (Say), es un agente de control biologico importante para plagas agricolas y forestales; esta depreda en huevos y larvas de especies de lepidopteros y coleopteros. La variabilidad genetica entre muestras de campo colectadas de Michigan, Mississippi, Missouri y Florida y de colonias establecidas en el laboratorio fue examinada usando Longitud del Fragmento de Polimorfismo Amplificado-Reaccion de la Cadena de Polimerasa (AFLP-PCR). Cuatro pares de primers para AFLP generaron marcadores moleculares para la evaluacion. Los analisis de varianza molecular mostraron que la mayoria de la variacion genetica se presento dentro de las poblaciones (individuos de cada sitio de muestreo). El metodo de Nei indico que existe diversidad genetica reducida en las poblaciones de laboratorio en comparacion con las poblaciones colectadas en campo. No se encontraron diferencias mayores o deficiencias entre las muestras de campo de diferentes areas o entre las muestras criadas en el laboratorio. Concluimos que las poblaciones de campo son panmicticas y que las chinches espinosas soldado criadas en el laboratorio pudieran ser agentes de control biologico utiles en el campo.
Downloads
Issue
Section
License
Copyright for any article published in Florida Entomologist is held by the author(s) of the article. Florida Entomologist is an open access journal. Florida Entomologist follows terms of the Creative Commons, Attribution Non-Commercial License (cc by-nc). By submitting and publishing articles in Florida Entomologist, authors grant the FOJ and Florida Entomologist's host institutions permission to make the article available through Internet posting and electronic dissemination, and to otherwise archive the information contained both electronically and in a hard printed version. When used, information and images obtained from articles must be referenced and cited appropriately. Articles may be reproduced for personal, educational, or archival purposes, or any non-commercial use. Permission should be sought from the author(s) for multiple, non-commercial reproduction. Written permission from the author(s) is required for any commercial reproduction.