Hybridization and the spread of the apple maggot fly, Rhagoletis pomonella (Diptera: Tephritidae), in the northwestern United States

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dc.citation.firstpage834
dc.citation.issueNumber8
dc.citation.journalTitleEvolutionary Applications
dc.citation.lastpage846
dc.citation.volumeNumber8
dc.contributor.authorArcella, Tracy
dc.contributor.authorHood, Glen Ray
dc.contributor.authorPowell, Thomas H.Q.
dc.contributor.authorSim, Sheina B.
dc.contributor.authorYee, Wee L.
dc.contributor.authorSchwarz, Dietmar
dc.contributor.authorEgan, Scott P.
dc.contributor.authorGoughnour, Robert B.
dc.contributor.authorSmith, James J.
dc.contributor.authorFeder, Jeffrey L.
dc.date.accessioned2015-11-09T18:52:17Z
dc.date.available2015-11-09T18:52:17Z
dc.date.issued2015
dc.description.abstractHybridization may be an important process interjecting variation into insect populations enabling host plant shifts and the origin of new economic pests. Here, we examine whether hybridization between the native snowberry-infesting fruit fly Rhagoletis zephyria (Snow) and the introduced quarantine pest R. pomonella (Walsh) is occurring and may aid the spread of the latter into more arid commercial apple-growing regions of central Washington state, USA. Results for 19 microsatellites implied hybridization occurring at a rate of 1.44% per generation between the species. However, there was no evidence for increased hybridization in central Washington. Allele frequencies for seven microsatellites in R. pomonella were more ‘R. zephyria-like’ in central Washington, suggesting that genes conferring resistance to desiccation may be adaptively introgressing from R. zephyria. However, in only one case was the putatively introgressing allele from R. zephyria not found in R. pomonella in the eastern USA. Thus, many of the alleles changing in frequency may have been prestanding in the introduced R. pomonella population. The dynamics of hybridization are therefore complex and nuanced for R. pomonella, with various causes and factors, including introgression for a portion, but not all of the genome, potentially contributing to the pest insect's spread.
dc.identifier.citationArcella, Tracy, Hood, Glen Ray, Powell, Thomas H.Q., et al.. "Hybridization and the spread of the apple maggot fly, Rhagoletis pomonella (Diptera: Tephritidae), in the northwestern United States." <i>Evolutionary Applications,</i> 8, no. 8 (2015) Wiley: 834-846. http://dx.doi.org/10.1111/eva.12298.
dc.identifier.doihttp://dx.doi.org/10.1111/eva.12298
dc.identifier.urihttps://hdl.handle.net/1911/82033
dc.language.isoeng
dc.publisherWiley
dc.rightsThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.keywordintrogression
dc.subject.keywordinsect pest
dc.subject.keywordmicrosatellites
dc.subject.keywordRhagoletis zephyria
dc.subject.keywordsnowberries
dc.subject.keywordWashington state
dc.titleHybridization and the spread of the apple maggot fly, Rhagoletis pomonella (Diptera: Tephritidae), in the northwestern United States
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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