Genetic Diversity and Wolbachia , in South-Central Pennsylvania

Eastern populations of the North American regal fritillary, Argynnis idalia Drury (1773), have been largely extirpated over the past half century. Here we report on the last remaining population of eastern regal fritillaries, located within a military installation in south-central Pennsylvania. Samp...

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Bibliographic Details
Published in:Journal of insect science (Tucson, Ariz.) Ariz.), 2022-01, Vol.22 (1)
Main Authors: Rutins, Ilga, Schannauer, Sarah, Orellana, Sharil, Laukhuff, Harrison, Lang, Eric, Becker, Timothy, McKinney, Erika, Thomas, Kayli, Tilden, Virginia, Swartz, Mark, Blair, Jaime E
Format: Article
Language:English
Subjects:
Distribution
Environmental aspects
Identification and classification
Wolbachia
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Summary:Eastern populations of the North American regal fritillary, Argynnis idalia Drury (1773), have been largely extirpated over the past half century. Here we report on the last remaining population of eastern regal fritillaries, located within a military installation in south-central Pennsylvania. Samples were obtained from field specimens during two years of annual monitoring, and from females collected for captive rearing over a five year period. Nuclear microsatellite and mitochondrial sequence data do not suggest subdivision within this population, but excess nuclear homozygosity indicates negative impacts on genetic diversity likely due to small population size and potential inbreeding effects. Molecular assays did not detect Wolbachia endosymbionts in field specimens of regal fritillary, but sympatric Argynnis sister species showed high prevalence of Wolbachia infected individuals. Our results inform ongoing conservation and reintroduction projects, designed to protect the last remaining regal fritillary population from extirpation in the eastern United States. Key words: butterfly, disease monitoring, conservation, microsatellite, mitochondrial DNA
ISSN:1536-2442
1536-2442
DOI:10.1093/jisesa/ieac006