Populus tremula Leaf Shape GWAS and Co-Expression Network Data

A genomics dataset from a study characterizing the genetic architecture of leaf shape variation in Eurasian aspen (Populus tremula L.). It integrates results from genome-wide association studies (GWAS) for physiognomy traits with gene co-expression network analyses from a developmental series and population-wide expression data. The data is publicly available via the ASPLeaf portal and was produced by researchers at Umeå University.

Use Cases

• Identify candidate genes associated with leaf shape variation based on GWAS results.
• Analyze gene co-expression networks within a leaf development series to understand transcriptional programs.
• Examine population-wide gene expression patterns in individuals with contrasting leaf shapes.
• Integrate expression quantitative trait loci (eQTL) data with shape-associated genes.
• Study the evolutionary signatures, such as relaxed selection, on genes linked to complex traits.

Strengths

• Data integrates multiple genomic analysis types: GWAS, co-expression networks, and eQTL mapping.
• Associated developmental series data is publicly hosted on a dedicated portal (aspleaf.plantgenie.org).
• Study provides a specific biological model (omnigenic) for interpreting the complex genetic results.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset scale are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the studied Eurasian aspen population.

Provenance

Source

Umeå University

Collection Method

Genome-wide association studies (GWAS), gene co-expression network analysis, and expression QTL (eQTL) mapping on a population of Eurasian aspen.

Geography

Likely focused on Eurasian aspen (Populus tremula L.) populations.