Pixie: a dwarf grapevine for research

Pixie is a dwarf grapevine whose phenotype results from a natural mutation that shortens internodes and promotes the formation of flowers instead of tendrils. Its small size makes it easy to cultivate in greenhouses or growth chambers. Pixie vines continuously produce flowers, with fruit at various stages of development visible on the plant at the same time. Released in August 2006 by the USDA Agricultural Research Service without intellectual property restrictions, Pixie's open-source status, compact growth habit, and constant flowering make it an ideal experimental system for fruit research.

Plant material is available upon request from Foundation Plant Services: Link

Pixie Atlas

The Pixie Atlas aims to visualize gene expression across various tissues. For each tissue (Root, Stem, Buds, Flowers, Leaves (young, green, senescent), and berries (green, post-veraison, harvest)), three replicates have been sampled. The heatmap will show the expression levels (in TPM) for each replicate, enabling users to assess the consistency of the samples.

Heatmap parameters

Search results

Visualize gene expression in TPM across various grape tissues. For better readability and comparison, the data is log10 transformed.

Input

The list of transcripts should be provided as one ID per line (or space-separated). Paste the list into the input area. If your transcripts are from a different genome, perform a BLAST search against the Pixie genome to find their equivalents.

Parameters

Adjust cell size (width/height), clustering method (complete, ward.D, ward.D2, average/UPGMA, mcquitty/WPGMA, median/WPGMC, centroid/UPGMC), and row/column grouping (1-10 groups) -- the heatmap updates automatically.

Output

The heatmap can be downloaded as PNG; the underlying data as CSV.