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Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)

We conducted a study of natural variation in functional leaf traits and herbivory in 116 clones of European aspen, Populus tremula L., the Swedish Aspen (SwAsp) collection, originating from ten degrees of latitude across Sweden and grown in a common garden. In surveys of phytophagous arthropods over...

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Autores principales: Robinson, Kathryn M., Ingvarsson, Pär K., Jansson, Stefan, Albrectsen, Benedicte R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3360762/
https://www.ncbi.nlm.nih.gov/pubmed/22662190
http://dx.doi.org/10.1371/journal.pone.0037679
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author Robinson, Kathryn M.
Ingvarsson, Pär K.
Jansson, Stefan
Albrectsen, Benedicte R.
author_facet Robinson, Kathryn M.
Ingvarsson, Pär K.
Jansson, Stefan
Albrectsen, Benedicte R.
author_sort Robinson, Kathryn M.
collection PubMed
description We conducted a study of natural variation in functional leaf traits and herbivory in 116 clones of European aspen, Populus tremula L., the Swedish Aspen (SwAsp) collection, originating from ten degrees of latitude across Sweden and grown in a common garden. In surveys of phytophagous arthropods over two years, we found the aspen canopy supports nearly 100 morphospecies. We identified significant broad-sense heritability of plant functional traits, basic plant defence chemistry, and arthropod community traits. The majority of arthropods were specialists, those coevolved with P. tremula to tolerate and even utilize leaf defence compounds. Arthropod abundance and richness were more closely related to plant growth rates than general chemical defences and relationships were identified between the arthropod community and stem growth, leaf and petiole morphology, anthocyanins, and condensed tannins. Heritable genetic variation in plant traits in young aspen was found to structure arthropod community; however no single trait drives the preferences of arthropod folivores among young aspen genotypes. The influence of natural variation in plant traits on the arthropod community indicates the importance of maintaining genetic variation in wild trees as keystone species for biodiversity. It further suggests that aspen can be a resource for the study of mechanisms of natural resistance to herbivores.
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spelling pubmed-33607622012-06-01 Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.) Robinson, Kathryn M. Ingvarsson, Pär K. Jansson, Stefan Albrectsen, Benedicte R. PLoS One Research Article We conducted a study of natural variation in functional leaf traits and herbivory in 116 clones of European aspen, Populus tremula L., the Swedish Aspen (SwAsp) collection, originating from ten degrees of latitude across Sweden and grown in a common garden. In surveys of phytophagous arthropods over two years, we found the aspen canopy supports nearly 100 morphospecies. We identified significant broad-sense heritability of plant functional traits, basic plant defence chemistry, and arthropod community traits. The majority of arthropods were specialists, those coevolved with P. tremula to tolerate and even utilize leaf defence compounds. Arthropod abundance and richness were more closely related to plant growth rates than general chemical defences and relationships were identified between the arthropod community and stem growth, leaf and petiole morphology, anthocyanins, and condensed tannins. Heritable genetic variation in plant traits in young aspen was found to structure arthropod community; however no single trait drives the preferences of arthropod folivores among young aspen genotypes. The influence of natural variation in plant traits on the arthropod community indicates the importance of maintaining genetic variation in wild trees as keystone species for biodiversity. It further suggests that aspen can be a resource for the study of mechanisms of natural resistance to herbivores. Public Library of Science 2012-05-25 /pmc/articles/PMC3360762/ /pubmed/22662190 http://dx.doi.org/10.1371/journal.pone.0037679 Text en Robinson et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Robinson, Kathryn M.
Ingvarsson, Pär K.
Jansson, Stefan
Albrectsen, Benedicte R.
Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)
title Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)
title_full Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)
title_fullStr Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)
title_full_unstemmed Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)
title_short Genetic Variation in Functional Traits Influences Arthropod Community Composition in Aspen (Populus tremula L.)
title_sort genetic variation in functional traits influences arthropod community composition in aspen (populus tremula l.)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3360762/
https://www.ncbi.nlm.nih.gov/pubmed/22662190
http://dx.doi.org/10.1371/journal.pone.0037679
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