A Genomic Perspective on the Generation and Maintenance of Genetic Diversity in Herbivorous Insects

Andrew D. Gloss, Simon C. Groen, Noah K Whiteman

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Understanding the processes that generate and maintain genetic variation within populations is a central goal in evolutionary biology. Theory predicts that some of this variation is maintained as a consequence of adapting to variable habitats. Studies in herbivorous insects have played a key role in confirming this prediction. Here, we highlight theoretical and conceptual models for the maintenance of genetic diversity in herbivorous insects, empirical genomic studies testing these models, and pressing questions within the realm of evolutionary and functional genomic studies. To address key gaps, we propose an integrative approach combining population genomic scans for adaptation, genome-wide characterization of targets of selection through experimental manipulations, mapping the genetic architecture of traits influencing fitness, and functional studies. We also stress the importance of studying the maintenance of genetic variation across biological scales--from variation within populations to divergence among populations--to form a comprehensive view of adaptation in herbivorous insects.

Original languageEnglish (US)
Pages (from-to)165-187
Number of pages23
JournalAnnual Review of Ecology, Evolution, and Systematics
Volume47
DOIs
Publication statusPublished - Nov 1 2016
Externally publishedYes

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Keywords

  • Evolutionary genomics
  • Experimental evolution
  • Genetic variation
  • Local adaptation
  • Plant-herbivore interactions
  • Population genomics

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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