v2.1.0

• Made the coverage analysis figure more readable
• Included citations for tools used in coverage analysis methods
• Adjusted figure referencing and manuscript sections for journal

v2.0.0

Second version of the manuscript after addressing the reviewers' feedback. We added new data, made significant improvements in the reporting of the results and discussion.

• Added new in situ hybridization expression data for late blastula stages.
• Included germ layer information for expression domains in text and figures.
• Provided better spatial and temporal information with several additional figures.
• Revised discussion, toning down functional speculations and focusing on the comparative aspect.
• Deposited all sequencing data to NCBI.

v1.0.0

Initial release for archiving to Zenodo and submitting to bioRxiv.