DOI: 10.5061/dryad.p2ngf1vzn
title: Data from: A trait-based root acquisition-defence-decomposition framework in angiosperm tree species

description: Plants make trade-offs between root resource acquisition and defence
 ability, for adapting to the complex belowground environment. This
 includes forming partnerships with different types of root associating
 microorganisms, such as arbuscular mycorrhizal and ectomycorrhizal fungi.
 These trade-offs, by mediating root chemistry, exert legacy effects on
 nutrient release during decomposition, which may, in turn, affect the
 ability of new roots to re-acquire resources, thereby generating a
 feedback loop. However, the linkages at the basis of this potential
 feedback loop remain largely unquantified. Here, we propose a trait-based
 root ‘acquisition-defence-decomposition’ conceptual framework and test the
 strength of relevant linkages across 90 angiosperm tree species. We show
 that, at the plant species level, the root-fungal symbiosis gradient
 within the root economics space, root chemical defence (condensed
 tannins), and root decomposition rate are closely linked, providing
 support to this framework. Beyond the dichotomy between arbuscular
 mycorrhizal-dominated versus ectomycorrhizal-dominated systems, we suggest
 a continuous shift in feedback loops, from “high arbuscular mycorrhizal
 symbiosis-low defence-fast decomposition-inorganic nutrition” by
 evolutionarily ancient taxa to “high ectomycorrhizal symbiosis-high
 defence-slow decomposition-organic nutrition” by more modern taxa. This
 ‘acquisition-defence-decomposition’ framework provides solid foundation
 for testable hypotheses on the multidimensional linkages between species’
 belowground strategies and ecosystem nutrient cycling in evolutionary
 context.
description: # Data and Code for the article "A trait-based root
 acquisition-defence-decomposition framework in angiosperm tree
 species" --- We have submitted our raw and processed trait data
 (**Data_Root_traits.xlsx**), R script supporting the data analysis of this
 study (**2024ADD_Rcode.R**), and processed data used for R script (
 **90Treedata.xlsx** ; **PCAdata.xlsx**). ## Descriptions ### **Data\_Root
 traits.xlsx** * *1_Notes and Variable List*: The Variable List and
 relevant notes for this dataset. * *2_Species information*: Information on
 90 angiosperm tree species used in this study, including site, mycorrhizal
 type, taxonomic information (species, genus, family, order, superorder),
 and forested biome. * *3_Root traits (mean+se)*: The species name
 (Species) and the species mean trait values (Trait) and corresponding
 standard errors (Trait-se). * *4_Raw and Processed (90speceis)*:
 Mycorrhizal type (Mycorrhizal), Site, the species name (Species), species
 mean trait values (Trait), For the species mean trait values, we first
 applied a log10 transformation [log10(Trait)], followed by a
 Z-transformation (for each site separately) [Z(log10(Trait))]. *
 *5_Processed(65AM)*: The processed data for arbuscular mycorrhizal(AM)
 speceis. Z transformed data [Z(log10(Trait))]. * *6_Processed(25EcM)*: The
 processed data for ectomycorrhizal (EcM) speceis. Z transformed data
 [Z(log10(Trait))]. ### **90Treedata.xlsx** * *Variable List: BI, branching
 intensity; CT,cortex thickness; RD, root diameter; RTD, root tissue
 density; SRL, specific root length; RN, root nitrogen concentration; RC,
 root carbon concentration; C.N: root carbon nitrogen ratio CTs,root
 condensed tannins; ML, root mass loss. * *1_All90*: The Z transformed data
 for all 90 speceis. * *2_AM65*: The Z transformed data for 65 arbuscular
 mycorrhizal(AM) speceis. * *3_EcM25*: The Z transformed data for 25
 ectomycorrhizal (EcM) speceis. * *4_All90_l*: The log10 transformed data
 for all 90 speceis. * *5_Major70_l*: The log10 transformed data for 70
 species from the major families. * *6_Tree90_PCAlm*: The loading scores of
 the phylogenetic principal component analyses (PC1, PC2) and Z transformed
 data, Mycorrhizal type (Mycorrhizal), Site. #For 90 species *
 *7_Tree65AM_PCAlm*: The loading scores of the phylogenetic principal
 component analyses (PC1, PC2) and Z transformed data. #For 65 AM species *
 *8_Tree25EcM_PCAlm*: The loading scores of the phylogenetic principal
 component analyses (PC1, PC2) and Z transformed data. #For 25 EcM species
 * *9_Diver.PCA.All*: Family name of trees, divergence time (Time), pPCA
 scores(PC1, PC2), root traits(Z transformed data) of major taxonomic
 groups (n = 15) at the family level. * *10_Diver.PCA.AM*: Family name of
 trees, divergence time (Time), pPCA scores(PC1, PC2), root traits(Z
 transformed data) of major taxonomic groups (n = 11) at the family level.
 #Notes: The families involved here refer to those to which the AM species
 in this study belong. ### **PCAdata.xlsx** * *Variable List: BI, branching
 intensity; CT,cortex thickness; RD, root diameter; RTD, root tissue
 density; SRL, specific root length; RN, root nitrogen concentration; RC,
 root carbon concentration; C.N: root carbon nitrogen ratio; CTs,root
 condensed tannins; ML, root mass loss. * *1_90Sphylall6*: The species name
 (Species), the loading scores of the phylogenetic principal component
 analyses (PC1-PC6), Mycorrhizal type (Colstype, 1 for AM; 2 for EcM). #For
 90 species * *2_90Lphylall6*: The loadings of the root traits (six
 traits). #For 90 species * *3_65Sphylam6*: The species name (Species), the
 loading scores of the phylogenetic principal component analyses (PC1-PC6).
 #For 65 arbuscular mycorrhizal(AM) speceis * *4_65Lphylam6*: The loadings
 of the root traits (six traits). #For 65 AM species * *5_25Sphylecm6*: The
 species name (Species), the loading scores of the phylogenetic principal
 component analyses (PC1-PC6). #For 25 ectomycorrhizal (EcM) speceis *
 *6_25Lphylecm6*: The loadings of the root traits (six traits). #For 25 EcM
 species * *7_90Sphylall8sup*: The species name (Species), the loading
 scores of the phylogenetic principal component analyses (PC1-PC8),
 Mycorrhizal type (Colstype, 1 for AM; 2 for EcM). #For 90 species *
 *8_90Lphylall8sup*: The loadings of the root traits (eight traits). #For
 90 species * *9_65Sphylam8sup*: The species name (Species), the loading
 scores of the phylogenetic principal component analyses (PC1-PC8). #For 65
 AM speceis * *10_65Lphylam8sup*: The loadings of the root traits (eight
 traits). #For 65 AM speceis * *11_25Sphylecm8sup*: The species name
 (Species), the loading scores of the phylogenetic principal component
 analyses (PC1-PC8). #For 25 EcM speceis * *12_25Lphylecm8sup*: The
 loadings of the root traits (eight traits). #For 25 EcM speceis ##
 Code/Software The R script was created using version 4.1.3. Annotations
 are provided throughout the script through 1) library loading, 2) dataset
 loading and cleaning, 3) analyses, and 4) figure creation.