Plant genetics predicts intra-annual variation in phytochemistry and arthropod community structure

G. M. Wimp, S. Wooley, R. K. Bangert, W. P. Young, G. D. Martinsen, Paul S Keim, B. Rehill, R. L. Lindroth, Thomas G Whitham

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

With the emerging field of community genetics, it is important to quantify the key mechanisms that link genetics and community structure. We studied cottonwoods in common gardens and in natural stands and examined the potential for plant chemistry to be a primary mechanism linking plant genetics and arthropod communities. If plant chemistry drives the relationship between plant genetics and arthropod community structure, then several predictions followed. We would find (i) the strongest correlation between plant genetic composition and chemical composition; (ii) an intermediate correlation between plant chemical composition and arthropod community composition; and (iii) the weakest relationship between plant genetic composition and arthropod community composition. Our results supported our first prediction: plant genetics and chemistry had the strongest correlation in the common garden and the wild. Our results largely supported our second prediction, but varied across space, seasonally, and according to arthropod feeding group. Plant chemistry played a larger role in structuring common garden arthropod communities relative to wild communities, free-living arthropods relative to leaf and stem modifiers, and early-season relative to late-season arthropods. Our results did not support our last prediction, as host plant genetics was at least as tightly linked to arthropod community structure as plant chemistry, if not more so. Our results demonstrate the consistency of the relationship between plant genetics and biodiversity. Additionally, plant chemistry can be an important mechanism by which plant genetics affects arthropod community composition, but other genetic-based factors are likely involved that remain to be measured.

Original languageEnglish (US)
Pages (from-to)5057-5069
Number of pages13
JournalMolecular Ecology
Volume16
Issue number23
DOIs
StatePublished - Dec 2007

Fingerprint

phytochemistry
arthropod communities
plant biochemistry
plant genetics
Arthropods
arthropod
annual variation
community structure
Chemical analysis
gardens
arthropods
prediction
garden
community composition
chemical composition
Genetics
Chemical plants
Biodiversity
Populus
Plant Structures

Keywords

  • Community genetics
  • Community structure
  • Condensed tannins
  • Genetic composition
  • Phenolic glycosides
  • Populus

ASJC Scopus subject areas

  • Ecology
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Plant genetics predicts intra-annual variation in phytochemistry and arthropod community structure. / Wimp, G. M.; Wooley, S.; Bangert, R. K.; Young, W. P.; Martinsen, G. D.; Keim, Paul S; Rehill, B.; Lindroth, R. L.; Whitham, Thomas G.

In: Molecular Ecology, Vol. 16, No. 23, 12.2007, p. 5057-5069.

Research output: Contribution to journalArticle

Wimp, GM, Wooley, S, Bangert, RK, Young, WP, Martinsen, GD, Keim, PS, Rehill, B, Lindroth, RL & Whitham, TG 2007, 'Plant genetics predicts intra-annual variation in phytochemistry and arthropod community structure', Molecular Ecology, vol. 16, no. 23, pp. 5057-5069. https://doi.org/10.1111/j.1365-294X.2007.03544.x
Wimp, G. M. ; Wooley, S. ; Bangert, R. K. ; Young, W. P. ; Martinsen, G. D. ; Keim, Paul S ; Rehill, B. ; Lindroth, R. L. ; Whitham, Thomas G. / Plant genetics predicts intra-annual variation in phytochemistry and arthropod community structure. In: Molecular Ecology. 2007 ; Vol. 16, No. 23. pp. 5057-5069.
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