Genome-wide SNPs resolve phylogenetic relationships in the North American spruce budworm (Choristoneura fumiferana) species complex

J. R. Dupuis, B. M.T. Brunet, H. M. Bird, L. M. Lumley, G. Fagua, B. Boyle, R. Levesque, M. Cusson, J. A. Powell, F. A.H. Sperling

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


High throughput sequencing technologies have revolutionized the potential to reconcile incongruence between gene and species trees, and numerous approaches have been developed to take advantage of these advances. Genotyping-by-sequencing is becoming a regular tool for gathering phylogenetic data, yet comprehensive evaluations of phylogenetic methods using these data are sparse. Here we use multiple phylogenetic and population genetic methods for genotyping-by-sequencing data to assess species relationships in a group of forest insect pests, the spruce budworm (Choristoneura fumiferana) species complex. With few exceptions, all methods agree on the same relationships, most notably placing C. pinus as basal to the remainder of the group, rather than C. fumiferana as previously suggested. We found strong support for the monophyly of C. pinus, C. fumiferana, and C. retiniana, but more ambiguous relationships and signatures of introgression in a clade of western lineages, including C. carnana, C. lambertiana, C. occidentalis occidentalis, C. occidentalis biennis, and C. orae. This represents the most taxonomically comprehensive genomic treatment of the spruce budworm species group, which is further supported by the broad agreement among multiple methodologies.

Original languageEnglish
Pages (from-to)158-168
Number of pages11
JournalMolecular Phylogenetics and Evolution
StatePublished - Jun 1 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Inc.


  • Genotyping-by-sequencing
  • Phylogenomics
  • Population genetics
  • RAD-seq
  • Species relationships
  • Systematics

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics


Dive into the research topics of 'Genome-wide SNPs resolve phylogenetic relationships in the North American spruce budworm (Choristoneura fumiferana) species complex'. Together they form a unique fingerprint.

Cite this