Supplementary Data Supplementary Dataset 1: Artemia franciscana genome assembly and annotation. This includes the final genome assembly and the annotation files. Supplementary Dataset 2: Artemia sinica annotation. Supplementary Dataset 3: Male and Female genomic coverage. This inludes the coverage in windows of 10,000 bp with and without the W-scaffolds included in the analysis. Supplementary Dataset 4: Male:female FST per gene. It includes the results from the analysis where the W-scaffolds were included and the analysis where they were not. Supplementary Dataset 5: Normalized gene expression Supplementary Dataset 6: W-specific sequences. This also includes a text file with the W-scaffolds which had annotated W-transcripts that have female specific expression. Supplementary Dataset 7: dN/dS results Z-W pairs in A. franciscana