Whole-genome resequencing data available for the melpomene clade from previously published work were also included [30 (link),39 (link),42 (link),44 (link),45 (link),51 (link),70 (link)–72 (link)]. For a few additional samples, 100 to 150 bp paired-end whole-genome resequencing data were generated on an Illumina X Ten platform (Novogene Co. Ltd, China; S1 Table). In addition, we downloaded, processed, and analysed a publicily available data set for H. cydno galanthus [49 (link)] with a more moderate depth of coverage (for results see S14 Fig). For the erato clade already published, whole-genome-resequencing data were used [38 (link)] (S10 Table).
The whole-genome data were mainly used for demographic reconstructions, whereas, for other analyses, the regions matching the capture regions were used.
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