Gene Expression Patterns During Early Nervous System Development in Spadella cephaloptera

An expression-based developmental map analyzes conserved genes during early neurogenesis in the chaetognath Spadella cephaloptera. The dataset, authored by June F. Ordoñez and last updated in 2026, combines nuclear-staining anatomical staging with spatiotemporal gene expression analyses from gastrulation through early post-embryonic stages. It provides a comparative reference for assessing conserved and lineage-specific neurogenic patterning across the Spiralia.

Use Cases

• Comparative analysis of conserved neurogenic gene expression patterns based on markers like Sce-soxB1-like1 and Sce-neuroD.
• Studying dorsoventral patterning during gastrulation based on reciprocal expression of Sce-bmp2/4 and Sce-chd.
• Investigating regionalization within the ventral nerve center based on expression domains of Sce-nk6 and Sce-hb9.
• Tracing stage-dependent deployment of catecholamine-pathway components based on Sce-th and Sce-dbh expression.

Strengths

• Focuses on an underrepresented spiralian lineage, providing data for comparative evolutionary studies.
• Documents spatiotemporal expression patterns for multiple conserved developmental genes across key embryonic stages.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is contained in a 26.8 MB DOCX file, which may require format conversion for computational analysis.

Provenance

Source

figshare

Collection Method

Combined nuclear-staining–based anatomical staging with spatiotemporal gene expression analyses.

Time Range

Covers developmental stages from gastrulation through early post-embryonic stages.

Freshness

Last updated 2026-05-28 06:23:13; freshness should be verified.