Wild Tomato Leaf Phenotype QTL Data for Climate Adaptation Analysis

Quantitative genetic analysis of leaf traits across wild tomato species (Solanum sect. Lycopersicon) using an introgression line population. The study maps quantitative trait loci (QTL) for traits associated with adaptation to precipitation, with a QTL Sign Test indicating directional natural selection on several traits. Data includes stomatal distribution QTL and genetic correlations with carbon isotope discrimination.

Use Cases

• Map quantitative trait loci (QTL) for leaf traits like stomatal distribution to identify candidate genes for climatic adaptation.
• Apply a QTL Sign Test to leaf phenotype data to test for signals of directional natural selection across species.
• Analyze genetic correlations between stomatal traits and carbon isotope discrimination data to investigate functional hypotheses for CO2 diffusion resistance.
• Investigate the genetic basis of trait covariation, such as leaf traits correlated across species, to assess constraints from pleiotropy or linkage disequilibrium.

Strengths

• Data is derived from an introgression line (IL) population, a controlled genetic resource for mapping.
• Analysis includes a QTL Sign Test, a specific statistical method for detecting natural selection.
• Study colocalizes large effect QTL for stomatal distribution with key genes in the stomatal development pathway.
• Genetic correlations integrate leaf phenotype data with independent carbon isotope discrimination measurements from the same ILs.

Limitations

• The dataset's specific row count, column structure, and file formats are unknown, limiting immediate usability assessment.
• Data is focused on specific wild tomato species (Solanum sect. Lycopersicon), limiting generalizability to other plant taxa.
• The last update was in June 2020, so the data does not reflect the most recent research.

Provenance

Source

Dryad digital repository.

Collection Method

Generated from quantitative genetic analysis of an introgression line (IL) population of wild tomatoes.

Freshness

Last updated 2020-06-24.

Geography

Wild tomato species (Solanum sect. Lycopersicon).