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Data · dataset · 2026

16S rRNA metabarcoding data and analysis code from throughfall and soil samples in a Neotropical forest (Ubatuba, São Paulo, Brazil)

Listed in REDU - Unicamp Institutional Research Data Repository

This repository contains processed data and analysis code associated with a 16S rRNA gene metabarcoding study of bacterial communities in throughfall water (rainwater passing through the forest canopy) and soil samples collected in a Neotropical forest in Ubatuba, São Paulo, Brazil.

Description

The dataset was generated to investigate how epiphytic tank bromeliads influence soil bacterial community structure and microbial functioning via canopy–soil coupling mediated by throughfall.

Throughfall and soil samples were collected in field conditions and processed using eDNA metabarcoding targeting the 16S rRNA gene (V4 region), following the Illumina Amplicon Protocol from the Earth Microbiome Project. Sequence data were processed using QIIME 2, with denoising and amplicon sequence variant (ASV) inference performed using DADA2, and taxonomic assignment conducted with a Naive Bayes classifier trained on the SILVA 138 database.

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The repository includes ASV tables, taxonomic classifications, and associated metadata. In addition to sequencing data, this repository provides R scripts used for downstream analyses, including diversity metrics (alpha and beta diversity), ordination analyses (PCoA), redundancy analysis (RDA), and structural equation modeling (piecewise SEM). Soil chemical variables (e.g., pH, organic matter, and nutrients) and microbial functional indicators—such as microbial biomass carbon, soil respiration, and β-glucosidase activity—were integrated into the analytical framework as well.

The data cannot be made publicly available due to intellectual property protection restrictions. For additional information, please contact the corresponding authors.

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Where it is published

Catalogue records · 1

Topics

Inferred from text
Sequencing 75%
Provenance · 1 source records, 11 field assertions
SourceKeyLast seenRaw
REDU - Unicamp Institutional Research Data Repositorydoi:10.25824/redu/H2WXZN5 d agoJSON v1
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concepts[field].anzsrc:field:410603mapping · redu unicamp brvocabulary-mapper@1.0.0keywords['Soil biology']
concepts[field].dataverse_subject:earth-and-environmental-sciencessource · redu unicamp brconnector:redu_unicamp_br@1.0.0/subjects
concepts[field].local:field:earth-environmentalmapping · redu unicamp brconnector:redu_unicamp_br@1.0.0/subjects
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concepts[modality].local:modality:sequencingenrichment · redu unicamp brkeyword-concept-rules@1.0.0title+description (75%)
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