Spadella cephaloptera Transcriptome Data on Photoreceptor Development and Opsins

A transcriptome of the arrow worm Spadella cephaloptera was searched for photoreceptor-related genes. The screen revealed two xenopsin copies, one peropsin copy, and one cryptochrome gene, with expression patterns analyzed in developing and adult eyes. The dataset was generated by Tim Wollesen of the University of Vienna to study eye development in Gnathifera.

Use Cases

• Phylogenetic analysis of photoreceptor evolution based on identified opsin and cryptochrome genes.
• Comparative gene expression studies focusing on xenopsin1 expression in lateral eye photoreceptor cells.
• Investigating potential non-visual photoreceptive zones by analyzing cryptochrome and peropsin expression in cerebral ganglia.

Strengths

• Identifies specific gene copies: two xenopsin and one peropsin.
• Includes gene expression analysis for xenopsin1 in developing and adult lateral eyes.
• Uncovered a single cryptochrome gene with expression in photoreceptor cells and cerebral ganglia.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

University of Vienna

Collection Method

Transcriptome sequencing and analysis.