Data availability
The sequencing reads have been submitted to European Nucleotide Archive
(ENA) with the project accession number PRJEB33413. The scripts used for
the genomic analysis can be found at
https://github.com/venta380/Monarch_genomics. Flight, wing morphology
and gene expression data have been uploaded to Dryad Digital Repository,
doi:10.5061/dryad.hh4j1f6.