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Genetic underpinnings of arthropod community distributions in Populus trichocarpa

Journal Article · · New Phytologist
DOI:https://doi.org/10.1111/nph.19660· OSTI ID:3002921
 [1];  [2];  [3];  [4];  [1];  [2];  [5];  [1];  [2];  [6];  [6];  [1]
  1. West Virginia Univ., Morgantown, WV (United States)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States). Bredesen Center for Interdisciplinary Research and Graduate Education
  3. West Virginia Univ., Morgantown, WV (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  4. Univ. of Colorado, Boulder, CO (United States)
  5. Georgetown Univ., Washington, DC (United States)
  6. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Community genetics seeks to understand the mechanisms by which natural genetic variation in heritable host phenotypes can encompass assemblages of organisms such as bacteria, fungi, and many animals including arthropods. Prior studies that focused on plant genotypes have been unable to identify genes controlling community composition, a necessary step to predict ecosystem structure and function as underlying genes shift within plant populations. Here, we surveyed arthropods within an association population of Populus trichocarpa in three common gardens to discover plant genes that contributed to arthropod community composition. We analyzed our surveys with traditional single-trait genome-wide association analysis (GWAS), multitrait GWAS, and functional networks built from a diverse set of plant phenotypes. Plant genotype was influential in structuring arthropod community composition among several garden sites. Candidate genes important for higher level organization of arthropod communities had broadly applicable functions, such as terpenoid biosynthesis and production of dsRNA binding proteins and protein kinases, which may be capable of targeting multiple arthropod species. We have demonstrated the ability to detect, in an uncontrolled environment, individual genes that are associated with the community assemblage of arthropods on a host plant, further enhancing our understanding of genetic mechanisms that impact ecosystem structure.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-00OR22725; SC0018196
OSTI ID:
3002921
Alternate ID(s):
OSTI ID: 2324727
Journal Information:
New Phytologist, Journal Name: New Phytologist Journal Issue: 3 Vol. 242; ISSN 0028-646X; ISSN 1469-8137
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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