Evolutionary history of Hemerocallis in Japan and levels of interspecific gene flow

The perennial herb genus Hemerocallis (Asphodelaceae) shows four flowering types: diurnal half-day, diurnal one-day, nocturnal half-day, and nocturnal one-day flowering. To examine how four flowering types diverged, we reconstructed the phylogeny of Japanese species of Hemerocallis using genome-wide SNPs determined by Multiplexed ISSR genotyping by sequence (MIG-seq). We also estimated the degree and direction of interspecific gene flow.