Wireworm (Coleoptera: Elateridae) Genomic Analysis Reveals Putative Cryptic Species, Population Structure, and Adaptation to Pest Control: Article No. 489

Kimberly Andrews, Alida Gerritsen, Arash Rashed, David Crowder, Silvia Rondon, Willem van Herk, Robert Vernon, Kevin Wanner, Cathy Wilson, Daniel New, Matthew Fagnan, Paul Hohenlohe, Samuel Hunter

Research output: Contribution to journalArticlepeer-review

21 Scopus Citations

Abstract

The larvae of click beetles (Coleoptera: Elateridae), known as “wireworms,” are agricultural pests that pose a substantial economic threat worldwide. We produced one of the first wireworm genome assemblies (Limonius californicus), and investigated population structure and phylogenetic relationships of three species (L. californicus, L. infuscatus, L. canus) across the northwest US and southwest Canada using genome-wide markers (RADseq) and genome skimming. We found two species (L. californicus and L. infuscatus) are comprised of multiple genetically distinct groups that diverged in the Pleistocene but have no known distinguishing morphological characters, and therefore could be considered cryptic species complexes. We also found within-species population structure across relatively short geographic distances. Genome scans for selection provided preliminary evidence for signatures of adaptation associated with different pesticide treatments in an agricultural field trial for L. canus. We demonstrate that genomic tools can be a strong asset in developing effective wireworm control strategies.
Original languageAmerican English
Number of pages13
JournalCommunications Biology
Volume3
DOIs
StatePublished - 2020

NREL Publication Number

  • NREL/JA-2C00-77923

Keywords

  • biogeography
  • molecular ecology
  • phylogenetics
  • population genetics

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