Macroevolution of insect-plant associations

The relevance of host biogeography to host affiliation

Judith X. Becerra, David L Venable

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

Identifying the factors that have promoted host shifts by phytophagous insects at a macroevolutionary scale is critical to understanding the associations between plants and insects. We used molecular phylogenies of the beetle genus Blepharida and its host genus Bursera to test whether these insects have been using hosts with widely overlapping ranges over evolutionary time. We also quantified the importance of host range coincidence relative to host chemistry and host phylogenetic relatedness. Overall, the evolution of host use of these insects has not been among hosts that are geographically similar. Host chemistry is the factor that best explains their macroevolutionary patterns of host use. Interestingly, one exceptional polyphagous species has shifted among geographically close chemically dissimilar plants.

Original languageEnglish (US)
Pages (from-to)12626-12631
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume96
Issue number22
DOIs
StatePublished - Oct 26 1999

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Insects
Bursera
Host Specificity
Beetles
Phylogeny

ASJC Scopus subject areas

  • General
  • Genetics

Cite this

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