Influence of host plant, geography and pheromone strain on genomic differentiation in sympatric populations of Ostrinia nubilalis

dc.contributor.author Coates, Brad
dc.contributor.author Kozak, Genevieve
dc.contributor.author Kim, Kyung Seok
dc.contributor.author Sappington, Thomas
dc.contributor.author Sun, Jing
dc.contributor.author Zhang, Yangzhou
dc.contributor.author Fleischer, Shelby
dc.contributor.author Dopman, Erik
dc.contributor.author Sappington, Thomas
dc.contributor.department Natural Resource Ecology and Management
dc.contributor.department Entomology
dc.date 2019-09-20T22:44:57.000
dc.date.accessioned 2020-06-30T02:25:07Z
dc.date.available 2020-06-30T02:25:07Z
dc.date.issued 2019-09-08
dc.description.abstract <p>Patterns of mating for the European corn borer (<em>Ostrinia nubilalis</em>) moth depend in part on variation in sex‐pheromone blend. The ratio of (<em>E</em>)‐11‐ and (<em>Z</em>)‐11‐tetradecenyl acetate (E11‐ and Z11‐14:OAc) in the pheromone blend that females produce and males respond to differs between strains of <em>O. nubilalis</em>. Populations also vary in female oviposition preference for and larval performance on maize (C4) and non‐maize (C3) host plants. The relative contributions of sexual and ecological trait variation to the genetic structure of <em>O. nubilalis</em> remains unknown. Host‐plant use (13C/14C ratios) and genetic differentiation were estimated among sympatric E and Z pheromone strain <em>O. nubilalis</em> males collected in sex‐pheromone baited traps at 12 locations in Pennsylvania and New York between 2007 and 2010. Among genotypes at 65 single nucleotide polymorphism marker loci, variance at a position in the pheromone gland fatty acyl‐reductase (<em>pgfar</em>) gene at the locus responsible for determining female pheromone ratio (<em>Pher</em>) explained 64% of the total genetic differentiation between males attracted to different pheromones (male response, <em>Resp</em>), providing evidence of sexual inter‐selection at these unlinked loci. Principal coordinate, Bayesian clustering, and distance‐based redundancy analysis (dbRDA) demonstrate that host plant history or geography does not significantly contribute to population variation or differentiation among males. In contrast, these analyses indicate that pheromone response and <em>pgfar</em>‐defined strain contribute significantly to population genetic differentiation. This study suggests that behavioral divergence likely plays a larger role in driving genetic variation compared to host plant‐defined ecological adaptation.</p>
dc.description.comments <p>This is a manuscript of an article published as Coates, Brad S., Genevieve M. Kozak, Kyung Seok Kim, Jing Sun, Yangzhou Wang, Shelby J. Fleischer, Erik B. Dopman, and Thomas W. Sappington. "Influence of host plant, geography and pheromone strain on genomic differentiation in sympatric populations of Ostrinia nubilalis." <em>Molecular ecology</em> (2019). doi: <a href="https://doi.org/10.1111/mec.15234">10.1111/mec.15234</a>.</p>
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dc.identifier archive/lib.dr.iastate.edu/ent_pubs/547/
dc.identifier.articleid 1549
dc.identifier.contextkey 15352392
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ent_pubs/547
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/24184
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ent_pubs/547/2019_Sappington_InfluenceHostManuscript.pdf|||Sat Jan 15 00:54:23 UTC 2022
dc.source.uri 10.1111/mec.15234
dc.subject.disciplines Behavior and Ethology
dc.subject.disciplines Ecology and Evolutionary Biology
dc.subject.disciplines Entomology
dc.subject.disciplines Genetics
dc.subject.disciplines Population Biology
dc.subject.keywords population genetics
dc.subject.keywords sexual selection
dc.subject.keywords reproductive isolation
dc.title Influence of host plant, geography and pheromone strain on genomic differentiation in sympatric populations of Ostrinia nubilalis
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication e87b7b9d-30ea-4978-9fb9-def61b4010ae
relation.isOrgUnitOfPublication f47c8cad-50be-4fb0-8870-902ff536748c
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