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Consistent community genetic effects in the context of strong environmental and temporal variation in Eucalyptus

Gosney, BJ, Potts, BM ORCID: 0000-0001-6244-289X, Forster, LG ORCID: 0000-0001-9195-2768, Whiteley, C and O'Reilly-Wapstra, JM ORCID: 0000-0003-4801-4412 2021 , 'Consistent community genetic effects in the context of strong environmental and temporal variation in Eucalyptus' , Oecologia, vol. 195, no. 2 , pp. 367-382 , doi: 10.1007/s00442-020-04835-1.

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Provenance translocations of tree species are promoted in forestry, conservation, and restoration in response to global climate change. While this option is driven by adaptive considerations, less is known of the effects translocations can have on dependent communities. We investigated the relative importance and consistency of extended genetic effects in Eucalyptus using two species - E. globulus and E. pauciflora. In E. globulus, the dependent arthropod and pathogen canopy communities were quantified based on the abundance of 49 symptoms from 722 progeny from 13 geographic sub-races across 2 common gardens. For E. pauciflora, 6 symptoms were quantified over 2 years from 238 progeny from 16 provenances across 2 common gardens. Genetic effects significantly influenced communities in both species. However, site and year effects outweighed genetic effects with site explaining approximately 3 times the variation in community traits in E. globulus and site and year explaining approximately 6 times the variation in E. pauciflora. While the genetic effect interaction terms were significant in some community traits, broad trends in community traits associated with variation in home-site latitude for E. globulus and home-site altitude for E. pauciflora were evident. These broad-scale trends were consistent with patterns of adaptive differentiation within each species, suggesting there may be extended consequences of local adaptation. While small in comparison to site and year, the consistency of genetic effects highlights the importance of provenance choice in tree species, such as Eucalyptus, as adaptive divergence among provenances may have significant long-term effects on biotic communities.

Item Type: Article
Authors/Creators:Gosney, BJ and Potts, BM and Forster, LG and Whiteley, C and O'Reilly-Wapstra, JM
Keywords: community genetics, extended genetic efects, genetic variation, plant–herbivore interactions
Journal or Publication Title: Oecologia
Publisher: Springer-Verlag
ISSN: 0029-8549
DOI / ID Number: 10.1007/s00442-020-04835-1
Copyright Information:

© The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature 2021

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